Re: [SlimDevices: Audiophiles] Transporter Mods

2007-07-15 Thread seanadams

haunyack;214814 Wrote: 
> Funny though...even the Slim people were involved in the flamewar.
> 
> It may have become an embarrassment to daddy Logitech.
> 
> .

Sigh... here we go with the evil corporate overlords again. 

I deleted it because several users asked me to. Aside from spam, that
is the only reason I have ever deleted anything.


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Re: [SlimDevices: Audiophiles] Cheap tweak

2007-07-15 Thread haunyack

tyler_durden;214843 Wrote: 
> Actually, at subsonic speeds, a layer of dirt would probably improve
> aerodynamics by trapping a layer of still air against the body of the
> car.  Air slides over air more easily than air slides over the car
> body.  This is the reason why golf balls have a dimpled cover.  They
> fly farther with the dimpled cover because of reduced drag.
> 
> TD

Dimples on a golf ball are symmetrical, therefore the effect of air
pressure is predictable.

If one could predict the effects of random occurrence (grime on a car
finish, for example), that person could play the lotto and win every
time.
Random occurance is the angst of statistical analysis.

.


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RWA (Analog) SB3 -> Rotel RB 1070 -> B&W Matrix 805.
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Re: [SlimDevices: Audiophiles] Cheap tweak

2007-07-15 Thread Pale Blue Ego

So, you're saying parking lot dings improve overall performance?

I dunno; I've been using high-voltage electrical insulator wax on my
cars for several years, and they are so slippery if you lean against
them you'll slide right off.

http://www.amazon.com/845-Liquid-Insulator-Wax/dp/B000AP1JUA


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Re: [SlimDevices: Audiophiles] Cheap tweak

2007-07-15 Thread tyler_durden

Actually, at subsonic speeds, a layer of dirt would probably improve
aerodynamics by trapping a layer of still air against the body of the
car.  Air slides over air more easily than air slides over the car
body.  This is the reason why golf balls have a dimpled cover.  They
fly farther with the dimpled cover because of reduced drag.

TD


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Re: [SlimDevices: Audiophiles] Cheap tweak

2007-07-15 Thread haunyack

tyler_durden;214838 Wrote: 
> You know, my car always seems to "drive better" when it's clean.  I
> wonder if it is the same phenomenon...
> 
> TD

It's been proven that a layer of grime does reduce the aerodynamic
(laminar flow) properties of a moving object.
Vacuum excluded of course.
So, I agree that a layer of dust would interfere with the sound
pressure emitted from a transducer.

.


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Re: [SlimDevices: Audiophiles] Cheap tweak

2007-07-15 Thread tyler_durden

You know, my car always seems to "drive better" when it's clean.  I
wonder if it is the same phenomenon...

TD


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Re: [SlimDevices: Audiophiles] Cheap tweak

2007-07-15 Thread haunyack

Pat Farrell;214833 Wrote: 
> haunyack wrote:
> > It occurred to me to put the brush on the attachment hose and vacuum
> > the grill clothe on my speakers.
> 
> You mean you "removed a veil"?
> 
> 
> -- 
> Pat Farrell   pfarrell (AT) bioinformatx (DOT) com
> www.bioinformatx.com


Quite right Pat.
A veil of dust.

.


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Re: [SlimDevices: Audiophiles] Cheap tweak

2007-07-15 Thread Pat Farrell
haunyack wrote:
> It occurred to me to put the brush on the attachment hose and vacuum
> the grill clothe on my speakers.

You mean you "removed a veil"?


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[SlimDevices: Audiophiles] Cheap tweak

2007-07-15 Thread haunyack

So I decided it was time to vacuum...I'm a bachelor so that is indeed a
somewhat rare occasion.

It occurred to me to put the brush on the attachment hose and vacuum
the grill clothe on my speakers.

Well, an improvement (no dbt to verify) in [audiophile adjective] and
[audiophile adjective] is immediately apparent.
Also the [audiophile adjective] became [audiophile adjective] with
greater [audiophile adjective].


Nice!
.


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Re: [SlimDevices: Audiophiles] Transporter Mods

2007-07-15 Thread haunyack

CPC;214657 Wrote: 
> What happen to the TP modification thread?

Funny though...even the Slim people were involved in the flamewar.

It may have become an embarrassment to daddy Logitech.

.


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Re: [SlimDevices: Audiophiles] A photo of your Squeezebox setup (please)

2007-07-15 Thread amey01


A poll associated with this post was created, to vote and see the
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- yes
- no
- maybe


SB3 --> Musical Fidelity X-DAC / Marantz 8300 SACD --> Copland CTA305
--> Classé CA-101 --> Martin Logan Vista / Behringer DSP 1124P / Whise
Profounder.


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Re: [SlimDevices: Audiophiles] Design miss in SB3 digital output? or Slimserver problem ?

2007-07-15 Thread amey01

I just find this very interesting! 

I personally don't think it is the ADC / DAC either - not that I've
made any comparisons, but I can only assume because analogue recordings
(that have had no ADC / DAC) also sound completely different to the real
thing. 

My bet (guess) would be that if you played a "live" band through an ADC
then DAC and piped them directly into the speakers it would still sound
"live". 

Clearly - something is going on here that we don't understand.


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Re: [SlimDevices: Audiophiles] DRC/Inguz and Microphone Calibration

2007-07-15 Thread muski

Thanks.  My room is very bright (polished conrete floors and glass and
plaster), so your observation about brightness makes a lot of sense. 
Will give it a try this week.

Thanks,
Muski


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Re: [SlimDevices: Audiophiles] s/pdf SB better than s/pdf soundcard pc?

2007-07-15 Thread jaysung

I presume that your mainboard and the SB alike have optical digital
outputs. So there should not be any electrical influence ones the
signal has passed the optoelectrical converter...
Anyway, I THINK it is all voodoo. A word which I come to like since I
got myself into the very expensive hobby of being a so called
audiophile. ;)
Don't worry about digital signal quality worry about the noise
(audible) hard disks and coolers in a PC produce! 
Well, and jitter? Just try the search button and after a long very long
time make your mind up about it. It really depends on the receiver. But
I can't see why the squeezebox (a very tightly packed package) should
induce less electrical noise than a fully grown pc.


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Re: [SlimDevices: Audiophiles] s/pdf SB better than s/pdf soundcard pc?

2007-07-15 Thread ceejay

No, its not always the same.  Although the sequence of 1s and 0s ought
to be the same, this has to be represented by an analog electrical or
optical signal which can have timing or other imperfections.  These
imperfections may or may not trouble the device that is receiving the
signal: a signal with a lot of noise in it will obviously present more
of a challenge to the receiver.

Typically this shows up as "jitter" (search the forums for many, many
threads on this topic) which can have some subtle distorting effect on
the receiver.

But a really top class receiving device (presumeably a DAC in this
case) might be able to overcome any noise and make all sources sound
alike.

HTH
Ceejay


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Re: [SlimDevices: Audiophiles] s/pdf SB better than s/pdf soundcard pc?

2007-07-15 Thread anko

Thanks Ceejay,

So the electrical noise of the computer may disturb the s/pdf signal
sent to the DAC. But, is it true that a s/pdf signal itself is always
"the same", independant of the source(I'm not technically educated as
you might have guessed)?

Thanks, Anko


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Re: [SlimDevices: Audiophiles] A photo of your Squeezebox setup (please)

2007-07-15 Thread itai


A poll associated with this post was created, to vote and see the
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- yes
- no
- maybe


Hey all
Here's my latest setup.
Currently, the SB3 is serving duty as an analog pre for my tube amp, 
as it blew away my previous digital setup! (see link).
My new speakres, Douvall Bella Lunas.
my previous rig:
http://forums.slimdevices.com/showthread.php?p=140349&highlight=itai#post140349


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Re: [SlimDevices: Audiophiles] Balanced vs Single ended output from Transporter

2007-07-15 Thread Pat Farrell
johann wrote:
> But I think one is missing the point if it just has to do with getting
> the bass in control. Diffusing the first reflexion is at least as IMO.

Controlling the first reflections are important. They are also a lot 
easier to do than controlling the below 200hz bass.

The first thing to do is to move the speakers away from the walls, get 
them off the floor, etc. (unless you have Quads or Maggies).
Carpet, sofas, and other stuff that the wife wants anyway help a lot 
with the first reflections. And while skyscape diffusers work great, 
they have lousey WAF for most. An alternative that works well and has a 
better WAF is a bookcase/bookshelf with books of varying sizes, not 
lined up. It can act as a decent approximation of a QRD with much better 
WAF.

Ethan also has plans for his bass traps on his personal site, which is 
handy for folks who are good with tools and can locate the high density 
insulation locally.

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Re: [SlimDevices: Audiophiles] Balanced vs Single ended output from Transporter

2007-07-15 Thread johann

Thanks Pat.

In the meantime I googled and had a look at their web site.

I agree that acoustic treaments can do wonders for the sound and gives
very good bang for the buck.

But I think one is missing the point if it just has to do with getting
the bass in control. Diffusing the first reflexion is at least as IMO.

The RealTraps web site said that shipping to Europe was not so
expensive but with 6 MiniTraps to Denmark at $457.07, it's a bit steep
I think.


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Re: [SlimDevices: Audiophiles] A photo of your Squeezebox setup (please)

2007-07-15 Thread amcluesent


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Arcam Solo with Transporter. A nice match :)


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Re: [SlimDevices: Audiophiles] Any plans on incorporating the AK4397 ?

2007-07-15 Thread Kiep

, it would have been modders dream. I agree there is no point in adding
extra pcb in the current model.
Lets hope Transporter 2 can take advantages of it. Mr. Adams?


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Re: [SlimDevices: Audiophiles] Which Interconnect Cable??

2007-07-15 Thread Pale Blue Ego

Here's an excellent source for cheap, good-quality cables.  Most of them
are $10 - $20 and very well-made:

http://www.cablewholesale.com/prodpages/audiovideoproducts.htm

They also offer lots of longer lengths, for not much more money.


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Re: [SlimDevices: Audiophiles] DRC/Inguz and Microphone Calibration

2007-07-15 Thread vdorta

Muski, "what I would expect" means that I am comparing (by ear) the
original uncorrected sound of my system (flac files), that I know by
experience to have a lumpy bass due to my particular room, but that is
also pretty flat on midrange and highs, to the Inguz-corrected sound
(flac/InguzDSP files). I use both test tones and music I know well.

You have to compare:

1) the uncorrected sound (as above) to the standard
ecm8000.txt-corrected sound;

2) the uncorrected sound (as above) to the calibrated sound.

If sounds in 1) are similar on midrange and highs and the brightness
only appears in 2), then the problem has to be the calibration, because
unless your room is extremely dead or there is a problem with the
tweeters, the Watts are pretty flat above the upper bass.

I am using the normal.drc from the Inguz site.


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Re: [SlimDevices: Audiophiles] Which Interconnect Cable??

2007-07-15 Thread zanash

you could try my relatively cheap diy cable recipe...its in the diy
section !

if you build using silver there should be some audible gains over the
standard [often crappy] digital cables on the market...

I prefer coax to optical ..even glass toslink sound thin when compared
to even the modest diy cable. But that may be more a reflection of the
dac I use.

Interstingly I use a toslink from HDrecoder to hifi as the coax creates
an untraceable hum loop ...and to be honest is relatively low fi in
comparison.


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Re: [SlimDevices: Audiophiles] Dac connections

2007-07-15 Thread Phil Leigh

Both coax and optical are fine for connecting SB's.
Which works better in your system is a matter of trial and error - in
90% of systems there will be no discernable difference and in the
remaining 10% one or the other will be very slightly preferred. It will
depend on many factors and is impossible to predict.


-- 
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] Dac connections

2007-07-15 Thread anselld

markwm;214674 Wrote: 
> I'm looking at buying a dac. Bit confused as to which connection type is
> best. Coaxial, Optical, USB & Firewire. 
> 
> What is the benefit of Firewire over Coaxial. The Apogee Mini Dac just
> added a firewire board for example.

What are you tring to connect to?   Squeezebox and Transporter dont
have USB or Firewire.  I would use Coax in preference to optical
pesronally.


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Re: [SlimDevices: Audiophiles] Transporter Mods

2007-07-15 Thread darrenyeats

Guys -
I believe it wasn't deleted but renamed to "random slug-fest".
Darren


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Re: [SlimDevices: Audiophiles] Transporter Mods

2007-07-15 Thread tomjtx

I think I missed the last few posts...argh

I just need to know :-)


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Re: [SlimDevices: Audiophiles] Transporter Mods

2007-07-15 Thread adamslim

It got nuked as people were getting a bit hot under the collar, I think.
Shame, it disappeared while I was reading it - it was great fun!!


-- 
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Those are my principles, and if you don't like them... well, I have
others

http://www.last.fm/user/AdamSlim/
'Last.fm group: people who don't listen to any of last.fm's top
artists'
(http://www.last.fm/group/People+who+don%27t+listen+to+any+of+last.fm%27s+top+artists)

SB+, EAR 859, Living Voice Auditorium II plus some other stuff
SB3, Shek d2, Ming-Da MC84-C, Harbeth HL-P3ES

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[SlimDevices: Audiophiles] Dac connections

2007-07-15 Thread markwm

I'm looking at buying a dac. Bit confused as to which connection type is
best. Coaxial, Optical, USB & Firewire. 

What is the benefit of Firewire over Coaxial. The Apogee Mini Dac just
added a firewire board for example.


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Re: [SlimDevices: Audiophiles] Any plans on incorporating the AK4397 ?

2007-07-15 Thread AndyC_772

Sadly it's not a direct swap, it comes in a different physical package
and requires a different supply voltage on the digital side.

It might be possible to make it fit using a little adapter PCB of some
kind, but the danger is that doing so would negate the effect of the
careful layout on Transporter's main board. I know for a fact that even
just a few mm of extra PCB trace in the wrong place can have a severe
impact on sound quality, so I'd be surprised to see a genuinely
worthwhile improvement by going down this route.

Transporter mk II, on the other hand - no reason NOT to change.


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AndyC_772

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Re: [SlimDevices: Audiophiles] DRC/Inguz and Microphone Calibration

2007-07-15 Thread muski

vdorta;214539 Wrote: 
> Wouldn't this suggest the calibration is wrong? 

No, I think it was 'operator error' on my part -- I don't think that I
generated my first set of filters correctly.   I have since regenerated
everything, and am not hearing the clipping I noticed the first time
with the normal filter.  The sounds is a little brighter, but that may
simply be that I was so accustomed to the old ones.  I should do some
more side-by-side listening to the calibrated and uncalibrated
filters.

Turns out that when I plot the 'normal' and 'soft' filters there is
almost no difference between the two in terms of freq response
correction.  My understanding is that the difference between 'soft' and
'normal' has more to do with the degree of phase correction.  I also
just read that the 'No Correction' filter just does freq filtering,
with no phase correction, so I will try listening to that, too.

I guess it's also possible that you might have a better instance of an
ECM 8000 than mine.  As I said before, I would be interested to try the
same exercise with a calibrated Earthworks mic.

BTW, are you using the 'normal.drc' from the Inguz site or the one
included with DRC?

Muski

P.S. Just curious -- you say 'what I would expect'.  Is that based on
published measurements of your equipment or something else?


-- 
muski

SB3->Bryston BP25DA->Bryston 4B-SST->Watt Puppy 7s
Transporter->Headrom Max Balanced Amp->Balanced AKG701s & HD650s

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[SlimDevices: Audiophiles] Transporter Mods

2007-07-15 Thread CPC

What happen to the TP modification thread?


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CPC

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