Re: [SlimDevices: Audiophiles] Transporter on the cover of HiFiCritic

2007-07-24 Thread JJZolx

..


+---+
|Filename: HiFiCritic1.jpg  |
|Download: http://forums.slimdevices.com/attachment.php?attachmentid=3083|
+---+

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Jim

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Re: [SlimDevices: Audiophiles] Idea for high-end Squeezebox/Transporter accessory

2007-07-24 Thread crooner

Also, given that CDs are rapidly becoming obsolete, I think it won't be
long before we start seeing them as strictly collector's items, just
like those classic 1950s Jazz LPs.

In this case, you can recreate the whole CD (or LP) experience by
simply taking the unit from the shelf and scanning it. 

The scanning device would, of course, be wireless. 

Being even more adventurous, I envisage a device that combines a LCD
screen (a la Nokia Internet Tablet) with a built in scanning device.

This way, the artwork stored on the server can be brought up on the
screen after scanning, with other relevant information. Best of both
worlds!


-- 
crooner

Customized dual chassis "Super Squeezebox"
EAD DSP-7000 Series III DAC with HDCD and mods.
VPI Scout with Benz Micro Glider M2
Audio Research PH3, SP16L and VS110
Vandersteen 2Ce signatures, 2W subwoofer.

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Re: [SlimDevices: Audiophiles] Idea for high-end Squeezebox/Transporter accessory

2007-07-24 Thread crooner

Yeah, but the accessory would complement the remote and/or
laptop/tablet. I agree it can be pointless from the convenience point
of view.

The approach would particularly be useful for those with vast
collections and that still have the CDs organized in shelves.

I have actually stored away most of my CDs, but my prized LP collection
is still at hand, and for those it would be just great to scan a cover
and have the needledrop play instantly.

One thing I have noticed with my current setup is that it takes some
memorizing of my collection to decide what to play. 

Unless I have the laptop on to browse artwork, I no longer have a
visual aid to decide what to listen. With a large collection, it starts
to get a little complicated.

Eventually, the folks at Logitech will come up with something much
better than the remote, but less distracting than a Internet  Tablet or
Laptop. Perhaps the upcoming "Jive" interface?


-- 
crooner

Customized dual chassis "Super Squeezebox"
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VPI Scout with Benz Micro Glider M2
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Re: [SlimDevices: Audiophiles] Idea for high-end Squeezebox/Transporter accessory

2007-07-24 Thread JJZolx

crooner;216952 Wrote: 
> Having used the listening stations in Border's and other music stores,
> it just occurred to me: wouldn't it be great to have bar code scanner
> system for instant access to your music collection?

I think for most people, grabbing the CD packaging, or any printed
material for that matter, would largely defeat the convenience of the
Squeezebox.  You could just as easily drop the CD into a player as scan
the bar code packaging to play it.

While I agree that the remote interface leaves a lot to be desired,
that's not what I'd consider much of an improvement.


-- 
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Jim

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Re: [SlimDevices: Audiophiles] how to incorporate a sub in a SB system?

2007-07-24 Thread JJZolx

For simplicity it's hard to beat a sub with speaker-level inputs.  Some
of the better music sub makers, such as REL, even recommend the high
level inputs from the power amp for better integration with the main
speakers.


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[SlimDevices: Audiophiles] Idea for high-end Squeezebox/Transporter accessory

2007-07-24 Thread crooner

Having used the listening stations in Border's and other music stores,
it just occurred to me: wouldn't it be great to have bar code scanner
system for instant access to your music collection?

Once you have ripped your entire collection to your music server, you
would assign each album or compilation a dedicated bar code. You can
use the original code on the CD or print out new ones for compilations
or older recordings.

Instead of pressing a lot of buttons on the remote, or accessing a tiny
LCD screen on a Nokia Internet Tablet, one would simply grab the CD in
question and scan the barcode.  

This would be great for recreating the old fashioned liner notes
reading when listening to music, and particularly useful when friends
are over. 

Just imagine what it would do for needledrops (digital files of LP
records). Grab the original LP cover and scan the barcode and the music
would start playing!

I envision this as an extension to the present Slim Server software.

If Slim Devices/Logitech would come up with something like this, it
would literally trounce Sonos, Olive and the rest of the competition,
IMO.


-- 
crooner

Customized dual chassis "Super Squeezebox"
EAD DSP-7000 Series III DAC with HDCD and mods.
VPI Scout with Benz Micro Glider M2
Audio Research PH3, SP16L and VS110
Vandersteen 2Ce signatures, 2W subwoofer.

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Re: [SlimDevices: Audiophiles] how to incorporate a sub in a SB system?

2007-07-24 Thread seanadams

The simplest way would be to get a sub with stereo RCA pass-through.

If the sub only has stereo RCAs for input, you could split the SB
output with a pair of RCA Y-adaptors.

If the sub has only a mono RCA input, then you probably should get  a
preamp to generate the proper 2.1 output.

If you want to be able to crank the volume way up, you will need a
preamp that can apply a high-pass crossover for your main speakers. If
you're really trying to go the minimalist approach then these fixed
passive filters should work well:
http://www.audioc.com/accessories1/misc/hipass.htm


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[SlimDevices: Audiophiles] how to incorporate a sub in a SB system?

2007-07-24 Thread jmsun

Hi, I'm running sb3 directly into my amp right now but thinking of
adding a sub into the system to get more bass. What's the best way to
do this without getting too complicated? Any suggestions?


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[SlimDevices: Audiophiles] Transporter on the cover of HiFiCritic

2007-07-24 Thread DCtoDaylight

Just received the July/August edition of the HiFi Critic, and saw a
familiar face on the cover!  Once I get a chance to read the article,
I'll let you know what they think...

Cheers,  Dave


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Re: [SlimDevices: Audiophiles] New User - Please help with 96K playback

2007-07-24 Thread DCtoDaylight

Videodrome;216862 Wrote: 
> Correct me if I'm wrong, but isn't part of the attraction to 96K
> upsampling to reduce the brick wall effect of filtering at or near 44.1
> kHz?  

The attraction of 96K Sampling (not up sampling) over 44.1K sampling,
is that it moves the brick wall filter from 22.05 kHz to 48 kHz.  This
can have audible benefits, because the 22kHz filter usually has
measurable affects in the audible pass band.  Move the filter to 48k
and the effects are outside of the audible portion of the pass band.

Oversampling on playback allows similar movement of the re-construction
filter, and has been used by all playback systems for 20 years now
(recall 4x or 8x oversampling, or 176K or 352K to keep the same scale).
Usually, its used to allow a low order re-construction filter (ie, the
reconstruction filter does NOT have to be a brick wall design, 3-4th
order is usually enough).

Upsampling is a term used by some to describe what they feel is a
better oversampling algorithm, but the cold fact of the matter is that
there's really no difference to the two.  They are both changing the
data rate, but neither is really capable of recreating what has been
lost by the original anti-aliasing filter.  Even if you knew exactly
how to compensate for the audible affects of the anti-aliasing filter
in one studio's A/D, it wouldn't necessarily work for another.  

Hope this doesn't just confuse things more!
Cheers,  Dave


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Re: [SlimDevices: Audiophiles] Here is why no FF/RW

2007-07-24 Thread amey01

TiredLegs;215673 Wrote: 
> It's actually the other way around, i.e., the manual should reflect the
> way the product operates. So if the manual is wrong, it needs
> correction.
> 
> 

Sorry - no. Sure, the manual SHOULD reflect the way the product works,
but it did not match the way the product worked when I purchased my
Squeezebox. 

By all means fix the manual so this problem doesn't get raised by
future purchasers, but that doesn't eliminate Slim Devices' need to
provide me with a product whose performance matches the way it was
advertised to me before my purchase!

With the ubiquity of this feature, it would be ethical of the manual to
explicitily state that this feature does not work. still, even no
mention of FF/REW in the manual (although sneaky) would be within
requirements. 

BUT the manual explicitly states this feature does work - and I quote
from page nine: "Press and hold REW to scan backward through the
current song" and "Press and hold FWD to scan forward through the
current song". 

It is on record that I think the Squeezebox is a fantastic product -
ONE OF THE BEST I OWN - but it is essential that anything I purchase
matches its advertsied description!


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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread WilCox

I have been using Dynaudio BM 6A Mk II's for some time and they are a
steal at the $1,500 street price.  I suspect if they were repackaged
for the audiophile market, they would cost at least $3,000!


-- 
WilCox

SB3 -> PS Audio Digital Link III -> Dynaudio BM 6A Mk II

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Re: [SlimDevices: Audiophiles] "Squeezeboxing Alone?"

2007-07-24 Thread Pale Blue Ego

AppleTV is kinda limited.  I read a recent review of a Netgear media
streamer that sounded impressive - handled lots of movie filetypes, had
enough bandwidth for HDTV over the LAN, and could connect to YouTube. 
Does music and photos, too.


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Re: [SlimDevices: Audiophiles] "Squeezeboxing Alone?"

2007-07-24 Thread opaqueice

Isn't that what this does?

http://www.apple.com/appletv/


Incidentally, speaking of screens, try a digital projector...  they're
cheaper than plasmas, make a much larger image if you want one, and (in
my opinion) look better.  They're also much smaller when not in use.


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Re: [SlimDevices: Audiophiles] "Squeezeboxing Alone?"

2007-07-24 Thread egd

Phil Leigh;216865 Wrote: 
> Totally agree - which is why I really want an SB-like solution for my
> 600 DVD's...

This should be a pretty easy to deal with using either a network
enabled DVD player or a purpose built PVR type PC.  If you Google the
topic I'm sure you will find many howto's on this topic.  Storing DVDs
on a NAS would be child's play, albeit strictly speaking illegal in
most jurisdictions.


-- 
egd

http://www.slimdevices.com/pi_transporter.html? >>
http://www.bluejeanscable.com/store/shopbycable/1800F.htm >>
http://www.atc.gb.net/homeamplifier/sca2.html >>
http://www.bluejeanscable.com/store/shopbycable/1800F.htm >> 
http://www.atc.gb.net/domestic/scm100slat.html

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Re: [SlimDevices: Audiophiles] "Squeezeboxing Alone?"

2007-07-24 Thread Phil Leigh

Mark Lanctot;216866 Wrote: 
> Not if the MPAA has their way you don't.  However I do remember hearing
> about a super-expensive HDD-based DVD jukebox system.  Mid 5-figures
> price!  Was it called Kaleidescope?

I know...it's a lovely system but out of my price league at the moment.


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] Headless music server

2007-07-24 Thread jdbaker

Ok, everything is working fine, using the KVM switch to access the
Headless Music Server, the M.S. is running Slimserver very nicely. I
have one problem, turns out the M.S. computer (HP Celeron 631MHZ w/320
Ram) is running XP like frozen molasseses. If I try to run iTunes and
rip or burn a CD while listening to a Squeezebox the music becomes
staccato and eventually freezes. I have not yet tried running both of
my Squeezeboxes at the same time. I have another 256k memory chip and
have tried installing to max out at 512k per H.P. specs, but the
computer will not boot up. It is weird, it will accept either of the
256k chips with the 64k chip but not both of the 256k chips. Any
suggestions?

JDB


-- 
jdbaker

SB3/Parasound C2/A51/PSB CHS60's/CHS40/Triad Gold Dipole Inwall
Surrounds/Triad Inwall Silver Sub.
SB3/Conrad Johnson D/A 2-B Tubed DAC/Arcam FMJ A32/Monitor Audio Silver
S6

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Re: [SlimDevices: Audiophiles] "Squeezeboxing Alone?"

2007-07-24 Thread amcluesent

Hell is other people.


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Re: [SlimDevices: Audiophiles] Headless music server

2007-07-24 Thread Mark Lanctot

jdbaker;216875 Wrote: 
> Ok, everything is working fine, using the KVM switch to access the
> Headless Music Server, the M.S. is running Slimserver very nicely. I
> have one problem, turns out the M.S. computer (HP Celeron 631MHZ w/320
> Ram) is running XP like frozen molasseses. If I try to run iTunes and
> rip or burn a CD while listening to a Squeezebox the music becomes
> staccato and eventually freezes. I have not yet tried running both of
> my Squeezeboxes at the same time. I have another 256k memory chip and
> have tried installing to max out at 512k per H.P. specs, but the
> computer will not boot up. It is weird, it will accept either of the
> 256k chips with the 64k chip but not both of the 256k chips. Any
> suggestions?

Certain motherboards like "double sided" RAM, or RAM only in certain
module combinations (i.e. 256 MB composed of 8 X 32 MB chips).  Given
the proprietary nature of HP's motherboards, this is probably the case
- they want you buying RAM from them.  I believe Crucial has an
extensive online system that chooses memory specifically for the
motherboard.

In regards to the processor, I've seen XP running on a 333 MHz Celeron
laptop, albeit slowly.


-- 
Mark Lanctot

'Sean Adams' Response-O-Matic checklist, patent pending!'
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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread Phil Leigh

tot;216869 Wrote: 
> Yeah, sure.  
> 
> I played a sweep on them to see if the bass attenuation was about right
> since they are wall mounted and the sweep sounded really interesting...
> concrete walls.
> 
> Teemu

Looks like you might want to investigate Mr Inguz and his RC plugin...


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread tot

Phil Leigh;216842 Wrote: 
> 
> ...and then you go and put them in a room...

Yeah, sure.  

I played a sweep on them to see if the bass attenuation was about right
since they are wall mounted and the sweep sounded really interesting...
concrete walls.

Teemu


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Re: [SlimDevices: Audiophiles] New User - Please help with 96K playback

2007-07-24 Thread amcluesent

>But was there a really big difference between the SB and tp playback?<

I never A-Bed them, I was just wondering if the SB3 would work at all.
IIRC Sean has posted that 96k on the SB3 was a hack he regretted doing
at all.

SB3 and TP analogue outs sound way different IMHO, like going from 320k
MP3 to FLAC.


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Re: [SlimDevices: Audiophiles] "Squeezeboxing Alone?"

2007-07-24 Thread Mark Lanctot

Phil Leigh;216865 Wrote: 
> Totally agree - which is why I really want an SB-like solution for my
> 600 DVD's...

Not if the MPAA has their way you don't.  However I do remember hearing
about a super-expensive HDD-based DVD jukebox system.  Mid 5-figures
price!  Was it called Kaleidescope?


-- 
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Re: [SlimDevices: Audiophiles] "Squeezeboxing Alone?"

2007-07-24 Thread Phil Leigh

Mark Lanctot;216863 Wrote: 
> Absolutely right, and if anyone talks during the movie or their
> cellphone goes off, you can pause it and tell them to get the f**k
> out!
> 
> Seriously, I can't go to movie theatres anymore.  Way too many people
> who think their own conversations are more important than what they
> just paid their $12.50 for.
> 
> The LOTR movies are the last ones I saw in theatres, and they will
> probably be the last.  I actually enjoy the DVDs more.

Totally agree - which is why I really want an SB-like solution for my
600 DVD's...


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] "Squeezeboxing Alone?"

2007-07-24 Thread Videodrome

Phil Leigh;216846 Wrote: 
> Well I guess it depends. When we get a new DVD (especially a big
> blockbuster) we often invite friends over for food + drinks and the
> movie...which none of us will have had time to see at the movies.

You're lucky.  After food + drinks, I can't get my wife to stay awake
for more than 30 minutes into a DVD.  Can't even imagine having friends
over -- I'd be worried it would be one big snooze fest.

Nonetheless, we do tend to enjoy movies at home more than the theater. 
Except for image size, everything's better at home -- especially sound. 
And taking into consideration the image clarity I get with my plasma
display and my viewing distance from it, losing out on the "big screen"
isn't that big a deal anymore.


-- 
Videodrome

Two-channel System:
SB3, into Musiland MD-10 DAC;
Outlaw 970 Pre/Pro;
McCormack DNA-125 amplifier;
Quad 11L speakers;
Sota Sapphire ttbl. w/ Grado Ref. Platinum Cart. into Rolls Bellari
VP-129 tube phono stage;
Marantz 10b;
Nakamichi RX505;
Cables Used: DH Labs, Van den Hul, Distech, Monster, many more.

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Re: [SlimDevices: Audiophiles] New User - Please help with 96K playback

2007-07-24 Thread Phil Leigh

Videodrome;216862 Wrote: 
> Correct me if I'm wrong, but isn't part of the attraction to 96K
> upsampling to reduce the brick wall effect of filtering at or near 44.1
> kHz?  And thus by doing so, better / smoother filtering occurs?  With
> less aliasing, quantization noise, etc.?
> 
> Now, unlike the most of you, I'm NOT a computer guy.  Nor did I stay in
> a Holiday Inn Express last night, so I may be missing the boat here.
> 
> I can tell you, however, I recently added a SRC Behringer 2496 to the
> digital stream before my DAC and, at 24/96 upsampling, I like what I
> hear.
> 
> Also, what's the mathematical magic to upsampling to 88kHz vs. 96kHz. 
> Are bits really that OCD?


realtime44.1 to 96 is computationaly more tricky and requires decisions
whereas 44.1 to 88.2 is simply doubling...

All of it rather pointless IMHO when the DAC will do it internally
anyway (usually to 384, 768 or even higher)
YMMV


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] "Squeezeboxing Alone?"

2007-07-24 Thread Mark Lanctot

Videodrome;216853 Wrote: 
> Nonetheless, we do tend to enjoy movies at home more than the theater. 
> Except for image size, everything's better at home -- especially sound.
> And taking into consideration the image clarity I get with my plasma
> display and my viewing distance from it, losing out on the "big screen"
> isn't that big a deal anymore.

Absolutely right, and if anyone talks during the movie or their
cellphone goes off, you can pause it and tell them to get the f**k out!

Seriously, I can't go to movie theatres anymore.  Way too many people
who think their own conversations are more important than what they
just paid their $12.50 for.

The LOTR movies are the last ones I saw in theatres, and they will
probably be the last.  I actually enjoy the DVDs more.


-- 
Mark Lanctot

'Sean Adams' Response-O-Matic checklist, patent pending!'
(http://forums.slimdevices.com/showpost.php?p=200910&postcount=2)

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Re: [SlimDevices: Audiophiles] New User - Please help with 96K playback

2007-07-24 Thread Videodrome

Correct me if I'm wrong, but isn't part of the attraction to 96K
upsampling to reduce the brick wall effect of filtering at or near 44.1
kHz?  And thus by doing so, better / smoother filtering occurs?  With
less aliasing, quantization noise, etc.?

Now, unlike the most of you, I'm NOT a computer guy.  Nor did I stay in
a Holiday Inn Express last night, so I may be missing the boat here.

I can tell you, however, I recently added a SRC Behringer 2496 to the
digital stream before my DAC and, at 24/96 upsampling, I like what I
hear.

Also, what's the mathematical magic to upsampling to 88kHz vs. 96kHz. 
Are bits really that OCD?


-- 
Videodrome

Two-channel System:
SB3, into Musiland MD-10 DAC;
Outlaw 970 Pre/Pro;
McCormack DNA-125 amplifier;
Quad 11L speakers;
Sota Sapphire ttbl. w/ Grado Ref. Platinum Cart. into Rolls Bellari
VP-129 tube phono stage;
Marantz 10b;
Nakamichi RX505;
Cables Used: DH Labs, Van den Hul, Distech, Monster, many more.

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Re: [SlimDevices: Audiophiles] Really controversial idea...

2007-07-24 Thread amcluesent

>this thread was too big an invitation.<

Interesting. So I guess some form of ring buffer to decouple the input
word stream from the DAC wouldn't work as even a fractional difference
in mean clock frequency between transport and DAC would lead to near
instant buffer over/under runs. 

So if a PLL is needed to lock the DAC clock to the input stream
recovered clock, then that PLL circuit needs a super-stable reference
clock itself and some form of damping to minimise tracking jitter.


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Re: [SlimDevices: Audiophiles] Really controversial idea...

2007-07-24 Thread Phil Leigh

tot;216843 Wrote: 
> This has been very informational thread, thank you all.
> 
> I found a copy somewhere :-) of "An Introduction to Digital Audio" by
> John Watkinson.  Very interesting and actually understandable, but
> hardly an "introduction."
> 
> However, back to where this started.  As Watkinson says in the book: if
> the effect of changing the cable can be heard, the DAC is a dud.
> 
> Teemu
Depends if the cable was faulty...


-- 
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You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] Really controversial idea...

2007-07-24 Thread Videodrome

Phil Leigh;216650 Wrote: 
> I am going to try the toslink + hammer trick when I get a chance.

Make sure it's glass toslink;-)


-- 
Videodrome

Two-channel System:
SB3, into Musiland MD-10 DAC;
Outlaw 970 Pre/Pro;
McCormack DNA-125 amplifier;
Quad 11L speakers;
Sota Sapphire ttbl. w/ Grado Ref. Platinum Cart. into Rolls Bellari
VP-129 tube phono stage;
Marantz 10b;
Nakamichi RX505;
Cables Used: DH Labs, Van den Hul, Distech, Monster, many more.

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Re: [SlimDevices: Audiophiles] Really controversial idea...

2007-07-24 Thread seanadams

Phil Leigh;216748 Wrote: 
> Sean - thanks.
> After more thought I realise the toslink+hammer test may be hard to
> make repeatable. However, using a mini-vice to progressively
> deform/crush the cable might work and be easier to control (eg by
> counting turns). I have a couple of medium quality ($35) toslinks that
> are unused and which I will donate to the cause. After my holidays I
> will investigate.
> Cheers
> Phil

Here, I tested it for you! :)

http://www.seanadams.com/jitter_fiber_test/


-- 
seanadams

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Re: [SlimDevices: Audiophiles] Really controversial idea...

2007-07-24 Thread JohnSwenson

tot;216769 Wrote: 
> Thanks John, very informative reply and definitely not boring.
> 
> It simply raises few other questions.  
> 
> If the recovered jittery clock drives the DA conversion in the receiver
> sure, jitter can and will lead to non-perfect waveform.  I would naively
> think that DAC's would do something better to be immune to bit-by-bit
> jitter?
> 
> For USB, it is still packets that get send out and not bit-by-bit
> stream, so jitter of the USB sender/bus/cable shouln't be a problem
> because the digital stream must be clocked on the receiver to convert
> packet chunks into something usable?
> 
> Teemu

On point 1 the problem is that there are several different ways to try
and do this, non of which has proven to be without drawbacks and
inexpensive and easy to implement. 

Personally I think the one with the most promise is the digitally
controlled VCXO, its still a phase lock loop in principle but with a
very low jitter VCXO. The "pull range" of these is small so you still
have to get things right. IF you use very low noise DAC from the
digital controller to the VCXO (low noise power supply etc) the results
can be very good. The beauty of this scheme is that you can easily
optimize the loop time constants on the fly. Short time constant to
aquire lock then long time constant during run,with the possibility to
change as conditions warrent. This has been done in purely analog
domain, bit its very tricky and expensive to do. Its actually fairly
easy to do this with a digital controler. I knew a couple people doing
it with small processors, I'm trying it out with an FPGA. 

On the USB issue the adaptive mode (the common one) has NO connection
from the receiver to the transmitter, its purely a one way street. The
the clock in the receiver has to have some way to synchronize with the
frequency of the transmitted data rate or else you will either over or
under run the data. If you are clocking it out slightly faster than its
coming in eventually you get to the point where there is no data. If its
clocking out slower than whats coming in, eventually you overflow the
internal buffer. This is what the adaptive mode does, it adjusts the
local clock on the fly so it stays synced to the average data rate of
the incoming data.

On the original subject of this thread, I've actually done some
experiments with some digital cables, from basic cheap coax to some
expensive "audiophile" cables. Interestingly enough the audiophile
cables were actually very lousy digital interconnects, they actually
added significant amounts of jitter, which with some DACs could help
mask the strong spikes from the reciver making it sound better! I'm not
saying ALL audiophile digital cables work this way, just the ones I
tested, and no, I'm not saying who they are. 

True 75 ohm BNC connectors with normal good quality communications
grade coax is about as good as you are going to get. Of course that
means having BNC connectors on both ends, not RCA jacks. When using
BNCs it important to use real 75 ohm connectors not the more common 50
ohms ones. I see a mismatch being done all over the place, just going
BNC won't help if its not 75ohm BNC. 

Interestingly enough the other option which works extremely well is
good old type F cable TV connectors. They work extremely well, only
come in one flavor so you can't mess it up and are available
everywhere. The S/PDIF standard SHOULD have used these. If you are
going to mod equiptment to replace n RCA, consider going with type F.
You might be able to get a type F in the same hole as the RCA, and you
can go to Radio shack and get the cable for $4. 

>  
> For example the Benchmark DAC1 seems to be absolutely immune to input
> jitter (its output measures the same no matter how jittery the input).
> 

This is an interesting case. They use a high frequency clock (I think
its something like 110MHz) to reclock the data going to the DAC. This
DOES make the system almost immune to jitter on the input, but DOES
effectively create jitter on the output. The clock might be low jitter,
but its reclocking the 44.1 (or whatever). What hits the DAC chip is
pulled in or pushed out to the nearest clock pulse of the high
frequency clock. This produces distortions in the waveform exactly the
same as jitter on the 44.1 clock. This is a perfect example of being
immune to jitter does not necessarily mean its LOW jitter. 

John S.


-- 
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Re: [SlimDevices: Audiophiles] "Squeezeboxing Alone?"

2007-07-24 Thread Phil Leigh

Videodrome;216835 Wrote: 
> I just read an interesting article on changing leisure habits on CNN and
> thought I'd pass it along for public consumption:
> 
> http://www.cnn.com/2007/US/03/29/leisure.overview/index.html 
> 
> In a nutshell, tech-gadgets like iPods, Home Theaters, (I guess you
> could add SB to the mix too), mean more and more people are consuming
> movies and music on an increasingly individualized basis.

Well I guess it depends. When we get a new DVD (especially a big
blockbuster) we often invite friends over for food + drinks and the
movie...which none of us will have had time to see at the movies.

...likewise concerts on TV such as the recent Live8 or Live Earth

I have a SONY HD5 but I never use it (although my kids use theirs all
the time).

My Blackberry is switched  off from 5pm Friday until 8am Monday :0)


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] New User - Please help with 96K playback

2007-07-24 Thread Phil Leigh

amcluesent;216839 Wrote: 
> 96/24 is confusing! As the GBP:USD rate is so good, I d/l Symphonie
> Fantastique as a FLAC from HighDefTapeTransfers.com (Meta tags were
> non-existant BTW).
> 
> It played fine on my SB3 and TP, reporting 96k on both; I assume the
> SB3 was silently dropping samples/bits (It also played fine on
> foobar2000).
> 
> Assuming the TP was doing 96/24 'for real', my 100% subjective
> experience with no control sample was that this encoding did convey the
> physical intensity of a symphony orchestra going a full tilt in a way
> that I hadn't experienced with 'red book' rips.

But was there a really big difference between the SB and tp playback? I
ask because in my experience 96 v 44.1 is neither here nor there,
whereas 16 v 24 can be heard quite easily.


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] New User - Please help with 96K playback

2007-07-24 Thread amcluesent

96/24 is confusing! As the GBP:USD rate is so good, I d/l Symphonie
Fantastique as a FLAC from HighDefTapeTransfers.com (Meta tags were
non-existant BTW).

It played fine on my SB3 and TP, reporting 96k on both; I assume the
SB3 was silently dropping samples/bits (It also played fine on
foobar2000).

Assuming the TP was doing 96/24 'for real', my 100% subjective
experience with no control sample was that this encoding did convey the
physical intensity of a symphony orchestra going a full tilt in a way
that I hadn't experienced with 'red book' rips.


-- 
amcluesent

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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread Phil Leigh

pfarrell;216836 Wrote: 
> Yes, it is a terrible term. And lots of pro-audio customers are not
> close to being professional.
> 
> The ADAM monitors are fabulous, but even more pricey.
> http://www.adam-audio.com/
> 
> Whatever you do, do not get Yamaha NS10. Sure, they are in every
> recording studio on the planet, but as examples of crappy speakers, not
> as samples of something you want to listen to. The NS-10 are famous
> because if you can make a mix sound good on them, it will sound good on
> anything.
Pat - Sage advice on the NS-10's - just another specialised tool really
I suppose.
Those ADAM's look good...


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] Really controversial idea...

2007-07-24 Thread tot

This has been very informational thread, thank you all.

I found a copy somewhere :-) of "An Introduction to Digital Audio" by
John Watkinson.  Very interesting and actually understandable, but
hardly an "introduction."

However, back to where this started.  As Watkinson says in the book: if
the effect of changing the cable can be heard, the DAC is a dud.

Teemu


-- 
tot

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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread Phil Leigh

tot;216824 Wrote: 
> I am using SB with Behringer B2031A's in one setup.  Since it is not for
> serious listening I wanted a cheap solution (about €350 for the
> pair) and for the money I think they are great.  
> 
> The sound quality is not the best possible, of course, but at least
> frequency response is flat *-- they come with measurement results.
> 
> Teemu

:o) 

...and then you go and put them in a room...


(I've used lots of Behringer gear in the past and its all been great)


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread pfarrell

Phil Leigh;216826 Wrote: 
> 
> Amusingly, when "pro audio" (yuck - horrible term) gear is reviewed in
> audio mags it is often criticised for mediocre imaging (or rather
> constriction of height and depth...dunno why... bit odd really when you
> consider what these things are actually being used for...)
> 

Yes, it is a terrible term. And lots of pro-audio customers are not
close to being professional.

The ADAM monitors are fabulous, but even more pricey.
http://www.adam-audio.com/

Whatever you do, do not get Yamaha NS10. Sure, they are in every
recording studio on the planet, but as examples of crappy speakers, not
as samples of something you want to listen to. The NS-10 are famous
because if you can make a mix sound good on them, it will sound good on
anything.


-- 
pfarrell

Pat 
http://www.pfarrell.com/music/slimserver/slimsoftware.html

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[SlimDevices: Audiophiles] "Squeezeboxing Alone?"

2007-07-24 Thread Videodrome

I just read an interesting article on changing leisure habits on CNN and
thought I'd pass it along for public consumption:

http://www.cnn.com/2007/US/03/29/leisure.overview/index.html 

In a nutshell, tech-gadgets like iPods, Home Theaters, (I guess you
could add SB to the mix too), mean more and more people are consuming
movies and music on an increasingly individualized basis.


-- 
Videodrome

Two-channel System:
SB3, into Musiland MD-10 DAC;
Outlaw 970 Pre/Pro;
McCormack DNA-125 amplifier;
Quad 11L speakers;
Sota Sapphire ttbl. w/ Grado Ref. Platinum Cart. into Rolls Bellari
VP-129 tube phono stage;
Marantz 10b;
Nakamichi RX505;
Cables Used: DH Labs, Van den Hul, Distech, Monster, many more.

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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread Phil Leigh

cliveb;216805 Wrote: 
> I've been using ATC SCM100A active monitors in my main system for about
> 14 years now. They are very clean, with low distortion, well extended
> bass, and can go incredibly loud if called upon to do so. Acquiring
> them put an end to the constant round of upgrading I had been victim to
> over the preceding years. Once they were installed, I just started
> listening to music again - never really much bothered to worry about
> the equipment any more.
> 
> As Phil says, they're not cheap. I paid just under £5000 for them back
> in 1993. I believe they cost about £8000 a pair these days. (My wife
> jokes that she married me for my speakers - at least I hope it's a
> joke!)

If I was to install a 2-channel system instead of the 5.1, the
SCM100A's would be in my top 3 choices - I'm jealous Clive!.

I've used various Tannoy's in the studio over the years, and also I
used to use my old active Bariks (just like Linn themselves used to!)

Amusingly, when "pro audio" (yuck - horrible term) gear is reviewed in
audio mags it is often criticised for mediocre imaging (or rather
constriction of height and depth...dunno why... bit odd really when you
consider what these things are actually being used for...)

Also, "analytical" is a term often used in a perjorative sense with
this gear. The point they seem to miss is that these things are first
and foremost tools of the trade. They need to do things that domestic
speakers don't (like not blow up when given a 1,000w sine wave by
mistake... or play all day at full volume). They also need to be very
consistent from day to day, unaffected by humidity etc.

There is a school of thought that these speakers need accoustically
well behaved rooms (like control rooms...) to sound at their best - but
I would argue that is true of ANY speaker. Digital RC always works well
with these speakers in my experience, for some reason.


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread tot

I am using SB with Behringer B2031A's in one setup.  Since it is not for
serious listening I wanted a cheap solution (about €350 for the
pair) and for the money I think they are great.  

The sound quality is not the best possible, of course, but at least
frequency response is flat *-- they come with measurement results.

Teemu


-- 
tot

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Re: [SlimDevices: Audiophiles] New User - Please help with 96K playback

2007-07-24 Thread Pale Blue Ego

stormy;216774 Wrote: 
> I tried these on my SB3 more out of curiosity than anything else. They
> play fine, but I noticed my AV Receiver was receiving PCM 44.1Khz from
> the SB3. My AV Receiver supports 96Khz so I am assuming that the SB3
> only outputs at 44.1Khz or is there something else I have missed?

The SB3 drops every other sample and plays them as 24/48kHz.  Not sure
why your receiver is displaying 44.1.  Look at the track info (-->) on
the SB3 as it plays, it should give you the bit depth and sampling
rate.

I'm able to play them on the PC using Foobar2000 through a Turtle Beach
soundcard on Windows2000.  I have no experience with Soundblaster or
Vista.


-- 
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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread cliveb

brjoon1021;216787 Wrote: 
> Anyway, have any of you tried the powered studio monitors (of any brand)
> at home? I am suspicious that they kick the hell out of home stereo
> speakers, especially for the money. And they are Powered!
I've been using ATC SCM100A active monitors in my main system for about
14 years now. They are very clean, with low distortion, well extended
bass, and can go incredibly loud if called upon to do so. Acquiring
them put an end to the constant round of upgrading I had been victim to
over the preceding years. Once they were installed, I just started
listening to music again - never really much bothered to worry about
the equipment any more.

As Phil says, they're not cheap. I paid just under £5000 for them back
in 1993. I believe they cost about £8000 a pair these days. (My wife
jokes that she married me for my speakers - at least I hope it's a
joke!)


-- 
cliveb

Transporter -> ATC SCM100A

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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread Phil Leigh

ATC's are great...but they are not cheap...


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You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread ErikM

In one of my systems I use Proac Studio 100's. They aren't "offically"
pro or studio gear but a few pro's like Rick Rubin, and a fellow named
Neil Young use them as monitors in their studios. Also interesting to
note if you look at this months Absolute Sound there's a review with
Bob Ludwig ( maybe the best mastering engineer on the planet) there's a
photo of him in his studio; looks like a pair of Eggleston Savoy as his
monitors. http://www.egglestonworks.com/


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Re: [SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread Pat Farrell
brjoon1021 wrote:
> Anyway, have any of you tried the powered studio monitors (of any
> brand) at home? I am suspicious that they kick the hell out of home
> stereo speakers, especially for the money. And they are Powered!

Yes, I have some Mackie 824 monitors. They sound wonderful.
They are not cheap, about a grand a pair. And you really need a 
subwoofer if you are a organ pedal note fan, but they are wonderful at 
reproducing the music.

They are also too ugly to go upstairs, their WAF is very low.


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[SlimDevices: Audiophiles] Have you tried Studio Monitors (Pro Audio gear...) at home?

2007-07-24 Thread brjoon1021

I went to a local Instrument and Pro Audio store (to see if they had a
used DAC, Lavry, Benchmark - no - ) and I was blown away by the design
and build quality of the monitor speakers for mixing and studio work. I
was pretty shocked, really, by what a thousand dollars can get you. I
saw the subs and wondered how good they were.

Anyway, have any of you tried the powered studio monitors (of any
brand) at home? I am suspicious that they kick the hell out of home
stereo speakers, especially for the money. And they are Powered!

Your experience, take on this please.


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Re: [SlimDevices: Audiophiles] Really controversial idea...

2007-07-24 Thread opaqueice

tot;216769 Wrote: 
> 
> If the recovered jittery clock drives the DA conversion in the receiver
> sure, jitter can and will lead to non-perfect waveform.  I would naively
> think that DAC's would do something better to be immune to bit-by-bit
> jitter?

Well, it's not quite as easy as that.  The most obvious thing is simply
to have a good local clock in the DAC, and use that to clock out the
bits.  The problem is that the rate at which that clock runs will be
slightly different than the rate at which the bits arrive.  If it's
faster the DAC buffer will empty; if it's slower the buffer will fill. 
Either way, bad.  That's why DACs reconstruct a clock from the data
itself.

Still, it really doesn't sound like a very hard problem - all you need
is a clock with the right average rate - and in fact PLLs do a pretty
good job of generating a clean clock (they essentially smooth out the
jitter by averaging over many cycles).  However some claim that even
the small amount of jitter than remains is audible, but it's apparently
possible to do even better.  For example the Benchmark DAC1 seems to be
absolutely immune to input jitter (its output measures the same no
matter how jittery the input).


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Re: [SlimDevices: Audiophiles] New User - Please help with 96K playback

2007-07-24 Thread stormy

Pale Blue Ego;216120 Wrote: 
> Download one or more of these.  They are 24/96 FLAC files:
> 
> http://01688cb.netsolhost.com/samplerdownload/

I tried these on my SB3 more out of curiosity than anything else. They
play fine, but I noticed my AV Receiver was receiving PCM 44.1Khz from
the SB3. My AV Receiver supports 96Khz so I am assuming that the SB3
only outputs at 44.1Khz or is there something else I have missed?

Also I can't play them on my Soundblaster Audigy 2 ZS in Windows with
FLAC or Winamp, they play but there is no sound? The Audigy is supposed
to support 24/96 isnt it? I had that output in Vista set at 24Bit,
96Khz.

Thanks,

Mike


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Re: [SlimDevices: Audiophiles] Snap, Crackle and Pop

2007-07-24 Thread IvanSlade

Thank you all guys.
It was the Lyngdorf power amp 2175 that was causing the problems. I
have changed the amp and no problems anymore.
Last thing that I would have thought, but who knows what that thing is
radiating and at what frequency (resonance or rather damping somewhere,
PWM output). Live and learn. The SB3 is better than many CDs.
Deepest thanks for your help and concern.
Best
Ivan


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Re: [SlimDevices: Audiophiles] Really controversial idea...

2007-07-24 Thread tot

Thanks John, very informative reply and definitely not boring.

It simply raises few other questions.  

If the recovered jittery clock drives the DA conversion in the receiver
sure, jitter can and will lead to non-perfect waveform.  I would naively
think that DAC's would do something better to be immune to bit-by-bit
jitter?

For USB, it is still packets that get send out and not bit-by-bit
stream, so jitter of the USB sender/bus/cable shouln't be a problem
because the digital stream must be clocked on the receiver to convert
packet chunks into something usable?

Teemu


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Re: [SlimDevices: Audiophiles] Really controversial idea...

2007-07-24 Thread Phil Leigh

Sean - thanks.
After more thought I realise the toslink+hammer test may be hard to
make repeatable. However, using a mini-vice to progressively
deform/crush the cable might work and be easier to control (eg by
counting turns). I have a couple of medium quality ($35) toslinks that
are unused and which I will donate to the cause. After my holidays I
will investigate.
Cheers
Phil


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You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] Really controversial idea...

2007-07-24 Thread Phil Leigh

Thanks for all of that information, John. It's extremely useful to have
everything condensed into a single post!
I just need to digest it all...


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...

...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some
very expensive cables ;o)

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Re: [SlimDevices: Audiophiles] SB setup great but I lost my CD player MoJo.

2007-07-24 Thread zanash

Not many suggestions for a cheap dac to rival the shek ...

So why not try the behringer src2496  approx £90 ...

you will need to do a few simple mods to squeeze the best from it
...swap the rectifier diodes for schottky's and bump up the smoothing
caps to 105 deg types ie the pannasonic fc's
also damping the case and crystal is very effective.

I'm running an sb3 into a modded src2496 which then feeds a quad99cdp
[in dac mode]..for some reason this sounds much more lively than
straight to the quad. I have no explanation for this.

Without a good psu this set up is close to the sound of the quad
playing the cd its not quite got the sparkle of the cdp but its damn
close.


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Re: [SlimDevices: Audiophiles] SB setup great but I lost my CD player MoJo.

2007-07-24 Thread mikeruss

After much research and reading I think I am going to demo

http://www.russandrews.com/lookup/1/region/UK/currency/GBP/customer_id/PAA3010058407084IJILMYUPOHBHPDGV/product-Russ-Andrews-DAC-1-USB-4569.htm

I'll let you know how I get on...

also thought this was an interesting product as a solution for a SB
bedroom/kitchen setup.

http://www.russandrews.com/lookup/1/region/UK/currency/GBP/customer_id/PAA3010058407084IJILMYUPOHBHPDGV/product-RAVE-1-USB-amplifier-and-speakers-4605.htm


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