Re: [SlimDevices: Audiophiles] Q: What exactly is break or burn in time?

2007-03-16 Thread AndyC_772

haunyack;188075 Wrote: 
 Unfortunately, because insulation stores and releases energy, it is
 also a “dielectric.” In a cable application, all released energy is
 distortion. The misnomer “break-in” is often used...

Actually some of this is real science. A cable is made up of two
conductors separated by an insulator, and therefore has capacitance.
Dielectric absorption is real, and so is capacitance change with
applied voltage. I've seen caps that reduce in value by 50% with just
5v applied across them - the effect is not always small. So, I can
believe that at frequencies where the effect of a few pF is
significant, applying a DC bias might indeed change the characteristics
of the cable.

Whether it makes any difference at audio frequencies is highly
debatable, though. But what really makes me laugh is the idea that the
effect is somehow persistent. It's not; discharge a capacitor to remove
the dc bias from it again and it's back to its original state almost
immediately.

All this would be a lot more plausible too if the dc bias were actually
between the conductors that carry the signal. It isn't...


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Re: [SlimDevices: Audiophiles] Transporter and Nuforce monobloks

2007-03-16 Thread P Floding

harmonic;186688 Wrote: 
 Hi all
 
 
 My main amp is a tact millenium .
 when i use the transporter as an  transport into the emillennium the
 sound i get is very close to perfect .
 
 its  no contest vs the ice amp wich is a moddified version of the
 asp1000 modul with a much larger power supply.
 
 But what i do like about the ice amp is its bass dynamics wich i thing
 is just a littel better then the mk3 and have thinking about a
 replacement of amp.
 But it better be pretty damm good to  better the millennium mk3.
 
 Now the nuforce ref 9 se  amps when i read about it it pretty much
 describes what i would like from a amplifire .
 
 Big bass dynamics grainfree treble layered soundstage that opens up
 bacwoards  wich i thing is perfect for a smalle 16 sq meter room .
 
 My tact millennium tends to create the soundstage infront of the
 speakers wich is good but when you only sit 3 meter from the speakers
 it can make the soundstage to much in your face .
 
 So i kind of hope the ref se would be what i have been looking for .
 
 regards

Does the TacT Millennium provide any parametric equaliser functions? If
so, you should be able to get a soundstage that suits your room by
adjusting, especially, the 3 kHz region.


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Re: [SlimDevices: Audiophiles] Audioengine 5 thread

2007-03-16 Thread jeffmeh

325xi;188198 Wrote: 
 I thought you might want to make a closer comparison by connecting SB3
 and DAC to AE5 and listen to the same flacs...

I was thinking along the same lines.  Given that you (Moshulu) think
that you understand the limitations of the MP3 player and format, it
should be clear that you cannot consider your comparison to be a fair
one.  If the Audioengines were so good that they revealed the MP3
limitations, then they would be punished for being so revealing.

If you use the SB3 and FLAC as the source for both, then you may or may
not arrive at the same conclusion.  If you have the time, I would be
curious to know what you experience.  Thanks.


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Re: [SlimDevices: Audiophiles] Transporter and Nuforce monobloks

2007-03-16 Thread harmonic

P Floding;188255 Wrote: 
 Does the TacT Millennium provide any parametric equaliser functions? If
 so, you should be able to get a soundstage that suits your room by
 adjusting, especially, the 3 kHz region.


Yes it has the same eq crossover and delay functions as the Roomperfect
amp fro lyngdorf audio

Actually i have desided to keep it


I had a shotout with the musical fidlity kw 750 and top line front end
vs the moddifed tact millennium mk3 with a dvd player 

The mellennium sounded better in the areas of dimensionality resolution
smothnes dynamics soundstage and  detajl.
Actually there is a paradox hear because the Musical fidility reference
system sounded more digital then the millennium.
The millennium sounded more musical also wich is the key hear.


The music fidility bass was alittel stronger but  only a littel.

Speakers where audio physics calendra

it was a shop demo so i couldent bring my Transporter but beleive me it
sound massivly better then the dvd player

I will upgrad my speakes instead because thise are the things that hold
my system back.

I will leave the nuforce behind for now 

regards


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Re: [SlimDevices: Audiophiles] Transporter and Nuforce monobloks

2007-03-16 Thread johann

harmonic;188267 Wrote: 
 Yes it has the same eq crossover and delay functions as the Roomperfect
 amp fro lyngdorf audio
 
 Actually i have desided to keep it
 
 
 I had a shotout with the musical fidlity kw 750 and top line front end
 vs the moddifed tact millennium mk3 with a dvd player 
 
 The mellennium sounded better in the areas of dimensionality resolution
 smothnes dynamics soundstage and  detajl.
 Actually there is a paradox hear because the Musical fidility reference
 system sounded more digital then the millennium.
 The millennium sounded more musical also wich is the key hear.
 
 
 The music fidility bass was alittel stronger but  only a littel.
 
 Speakers where audio physics calendra
 
 it was a shop demo so i couldent bring my Transporter but beleive me it
 sound massivly better then the dvd player
 
 I will upgrad my speakes instead because thise are the things that hold
 my system back.
 
 I will leave the nuforce behind for now 
 
 regards

Sounds like you visited Tape Connection.
Did you use the DVD player also for the MF?


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Re: [SlimDevices: Audiophiles] Audioengine 5 thread

2007-03-16 Thread Craig

I have a pair mounted high up in my kitchen and apart from having to use
the Inguz plugin to remove a bit of boxiness they sound fine, and
they're pretty powerfull too.

Craig


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Re: [SlimDevices: Audiophiles] Audioengine 5 thread

2007-03-16 Thread Kyle

I've got a pair in my small office playing flac files directly through
an external, 24-bit sound card.  Since I'm playing at mostly low volume
in an office setting, I use an equalizer to boost bass and treble
response.  However, I took them to the beach recently because my beach
stereo ($1,000 list Denon CD/DVD system) was in the shop.  I used an
SB2 to play flac files in a much larger room (700 sq. ft.) at a much
higher volume than my office.  They handled the task better than the
Denon system with higher maximum volume.  Although bass response was
impressive, I did hook up the Denon sub for a little extra kick.  I'm
certainly no audiophile when it comes to spending thousands on
equipment, but I do appreciate clean, detailed audio with nice and
punchy, but not overblown, bass.  I'd recommend the Audioengines for
any sub-audiophile application.


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Re: [SlimDevices: Audiophiles] Transporter and Nuforce monobloks

2007-03-16 Thread harmonic

johann;188268 Wrote: 
 Sounds like you visited Tape Connection.
 Did you use the DVD player also for the MF?

Yes exactly tape connection in copenhagen vesterbro.

The millennium wich is sensetic to placment wher placed on the floor we
hooked it up with semicore  dvd player  cant remember wich one.

Im giving the audio physics Avanti some serius thourgts.

i have only heard my moddified tact millennium mk3 with my owen
tempoary speakers that cost me 1000 dkr (system audio ) before the
audio physics


regards


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Re: [SlimDevices: Audiophiles] Q: What exactly is break or burn in time?

2007-03-16 Thread jmourik

opaqueice;188065 Wrote: 
 It never ceases to amaze me that some audiophiles regard the opinions of
 untrained people, people with a direct financial interest in the
 subject, as more credible than those of disinterested professional
 scientists that do full-time research on it.
Why? Well, actually it amazes me too, and whenever I go through these
threads it always reminds me of this:  
http://www.livescience.com/humanbiology/060810_evo_rank.html
People like to believe in myths.

Of course, when my new dac60 arrives I'll have it play continuously for
at least a week :-)


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Re: [SlimDevices: Audiophiles] Audioengine 5 thread

2007-03-16 Thread pablolie

Kyle;188277 Wrote: 
 ... I'd recommend the Audioengines for any sub-audiophile application.

To me that includes everywhere except a place where I *really* focus on
music. Mind you, I hate *bad* sound, but I don't need audiophile
reference sound wherever I go - I just need musicality and balance. I
always have the reference sound for the music in my ears, thus as long
as it doesn't offend me, and I can hear one or the other detail that I
find cool, I am ready.

For example, in my home office I have a 7 year old set of Monsoon 700
for my PC - and they sound great, I *enjoy* listening to music through
them (and they have the visual cool of being little dipole-radiating
planar speakers) even though they were all of $150 at the time. Amazing
staging, you feel ike there's a little Liliputian orchestra hideen
behind your flat panel. :-)

They Audioengines sound like they will keep up and then some. Which is
all I need in the bedroom, honestly. I am no fan of exaggerated bass,
but typically my main gripe about some settings is lack of bass
extension and control, and some subwoofer systems -as my Monsoon 700-
have a musical subwoofer, desgied to cplement the sound and not shake
the walls. Even some over $1k monitor speakers are severly lacking in
bass delivery when compared to larger setups, so I think the
Audioengines may sound better in some places and for some application
than expensive studio monitors.


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Re: [SlimDevices: Audiophiles] Audioengine 5 thread

2007-03-16 Thread Kyle

pablolie;188326 Wrote: 
 I am no fan of exaggerated bass, but typically my main gripe about some
 settings is lack of bass extension and control.

The AE5's have a passive woofer port on the back that needs some room. 
The setup guide recommend 6-12 inches between the back of the speaker
and the rear wall for best bass response.  They're only rated down to
60 Hz, but I'm often impressed with the bass response when listening to
music.  I think you'll be pleased with their performance.


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Re: [SlimDevices: Audiophiles] FLAC - WAV or ALAC on iTunes. (With some AIFF thrown in.)

2007-03-16 Thread kphinney

It looks like the difference is entirely within my Mac.  I can't tell
WAV and ALAC apart when played on my meager system.  Looks like I'll
stay with ALAC for the size and tag benefits.  Has anyone else
experienced this, _or_ could it be that my system is showing me the
difference?  I'm planning for the future.  I'd hate to finish this
project, upgrade my system and then realize I've made a mistake.


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[SlimDevices: Audiophiles] Power supply (technical)

2007-03-16 Thread gian

Hello,

I know very little about electricity, so please forgive my silly
questions.

I have read that upgrading the power supply benefits the SB's sound.
Now, just for curiosity sake, how can Volts have a sound? 

Would the original power supply sound better if hooked on a computer
ups battery?

Also, aside from the fact that the SB's volume control is not
recommended for audiophile listening, could you connect the SB to a
power amplifier (provided it's the only source) and save the pre-amp?

thanks for your time,
-GianLuca


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Re: [SlimDevices: Audiophiles] Transporter review at Audioholics

2007-03-16 Thread Nostromo

johann;188170 Wrote: 
 Yes I did together with a friend.
 Both analog there's a huge difference, where the SB sounds very thin
 and rolled of in the bass and rolled of but still edgy (in lack of
 better word) in the top. Room and space is much better with the
 Transporter. To sum it, it's a huge difference.
 
 Pairing the SB with a decent DAC (MF X-DACv3), the difference is not
 that big but the Transporter still is better with a smoother top end
 and better control.
 
 All IMVHO of course.
 
 Cheers,
 /Johan

Interesting. Just to be clear, it was a blind test?


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Re: [SlimDevices: Audiophiles] FLAC - WAV or ALAC on iTunes. (With some AIFF thrown in.)

2007-03-16 Thread jeffmeh

Any truly audible difference among WAV and the lossless formats would
have to be an anomaly specific to the audio playback chain.  From an
audio quality perspective, it should not matter, as you can always
transcode if you really think it makes a difference, or even if you
just change your mind around which lossless format you want.

I suggest that you choose your format based upon other factors, e.g.,
comfort level with tools, concerns around open vs. proprietary formats,
etc.  Personally, I would go with FLAC, but I am not an Apple/Itunes/DRM
fan and I value the non-proprietary format.


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Re: [SlimDevices: Audiophiles] FLAC - WAV or ALAC on iTunes. (With some AIFF thrown in.)

2007-03-16 Thread kphinney

Life would be a lot easier if Apple supported FLAC, but I suppose that's
a topic for another thread... and a brief search reveals that it's been
kicked around a bit already.


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Re: [SlimDevices: Audiophiles] Power supply (technical)

2007-03-16 Thread amcluesent

The SB3 has an external switched-mode PSU
(http://en.wikipedia.org/wiki/Switched-mode_power_supply) which some
claim can have a high-frequency noise on the 5V output (hence the
ferrite-core on the wire to suppress this), This noise could affect the
DAC in the SB3.


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Re: [SlimDevices: Audiophiles] Power supply (technical)

2007-03-16 Thread Jitterbug

As for connecting the SB3 directly to a power amp, it would be better
(for audio quality and safety reasons) to use some type type of preamp.
Many here use passive preamps which can be inexpensive.


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Re: [SlimDevices: Audiophiles] Audioengine 5 thread

2007-03-16 Thread Pale Blue Ego

They should probably be compared to something like a modest NAD or Rotel
amp and a good $200 set of unpowered speakers.  That's really the market
they are competing with.


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Re: [SlimDevices: Audiophiles] Power supply (technical)

2007-03-16 Thread Pat Farrell
Jitterbug wrote:
 As for connecting the SB3 directly to a power amp, it would be better
 (for audio quality and safety reasons) to use some type type of preamp.
 Many here use passive preamps which can be inexpensive.

I beg to differ. There can be no audio quality improvement in adding 
anything to the audio chain.

And there have been many threads on direct connection of a SqueezeBox to 
an amp. With proper gain matching, there is no safety issue. You may 
need attenuators, Sean Adams pointed out some high quality and 
reasonably priced models.

Audiophile passive preamps tend to be very pricey for what the do, which 
is nearly nothing by switching.

To be direct. You do not _need_ a preamp when using a SqueezeBox or 
Transporter.

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[SlimDevices: Audiophiles] AIFF vs Apple lossless

2007-03-16 Thread mmg_fan

In latest UHF magazine in the article about modding the power supply to
the SB, the author mentions that there 'is a slight but noticeable'
difference in audio quality between Apple lossless and AIFF.
Please tell me this isn't so!
I don't want to re-rip my entire cd collection!


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Re: [SlimDevices: Audiophiles] Power supply (technical)

2007-03-16 Thread Jitterbug

No real disagrement here. 

By improved audio quality, I was referring to using an analogue volume
control rather than the squeezebox one. 

To me, a minimal passive preamp is just an attenuator. I use a DACT
model built into a power amp with no other cicuitry. There are
certainly cheaper solutions around.


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Re: [SlimDevices: Audiophiles] FLAC - WAV or ALAC on iTunes. (With some AIFF thrown in.)

2007-03-16 Thread P Floding

kphinney;188348 Wrote: 
 It looks like the difference is entirely within my Mac.  I can't tell
 WAV and ALAC apart when played on my meager system.  Looks like I'll
 stay with ALAC for the size and tag benefits.  Has anyone else
 experienced this, _or_ could it be that my system is showing me the
 difference?  I'm planning for the future.  I'd hate to finish this
 project, upgrade my system and then realize I've made a mistake.

Could you describe the applications and system things (mixers etc)
involved in playback, and how they differ, if at all, between ALAC and
WAV?


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Re: [SlimDevices: Audiophiles] AIFF vs Apple lossless

2007-03-16 Thread P Floding

mmg_fan;188364 Wrote: 
 In latest UHF magazine in the article about modding the power supply to
 the SB, the author mentions that there 'is a slight but noticeable'
 difference in audio quality between Apple lossless and AIFF.
 Please tell me this isn't so!
 I don't want to re-rip my entire cd collection!

It isn't so.


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Re: [SlimDevices: Audiophiles] Q: What exactly is break or burn in time?

2007-03-16 Thread tyler_durden

Yes, this is America's great shame.

The lunatics are running the assylum.

For more interesting info about how religion has had its influence on
American society, read this:

http://moses.creighton.edu/jrs/2005/2005-11.html

TD


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Re: [SlimDevices: Audiophiles] Q: What exactly is break or burn in time?

2007-03-16 Thread Jitterbug

I too have a natural scepticism about device and theories of this type.


However, I also see that while science has done a good job of
explaining the more obvious phenomenon in this world, its success has
meant that we have effective reinvented the world we perceive from the
coarse building block science affords us. Such reduction to coarseness
and rejection of subtlety and the unexplained hinders future scientific
progress. The father of classical physics was also an enthusiastic
alchemist and that did stop him formulating laws to explain planetary
motion or inventing calculus. There is much that is readily observable
that science can not explain and no honest scientist would deny that.

I know nothing of Jim Hagermans break-in devices, but as a previous
customer of one of his more prosaic kits, echo Gary's comment that he
is one of the good guys in diy audio. Certainly, his promotion of this
device gives me cause to ponder.


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Re: [SlimDevices: Audiophiles] Q: What exactly is break or burn in time?

2007-03-16 Thread Wilfred

Most people aren't scientists, and thus usually don't understand what it
is.  The main goal of science is do build a model of an observed
phenomenon that can be used to predict its behavior under different
conditions.  Also, when someone bemoans the ignorance of 'science', it
is often because they are reading stupidified reports by journalists. 
Burn-in and, another favorite, cryogenics, are real physical phenomena
abused by the hucksters and their ignorant marks.  For some truly wacky
nonsense, check out this raving lunatic:
http://www.positive-feedback.com/Issue30/belt.htm.


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Re: [SlimDevices: Audiophiles] Q: What exactly is break or burn in time?

2007-03-16 Thread jmourik

tyler_durden;188372 Wrote: 
 For more interesting info about how religion has had its influence on
 American society, read this:
 
 http://moses.creighton.edu/jrs/2005/2005-11.html
 
 TD

Interesting article TD! Thanks...


-- 
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Re: [SlimDevices: Audiophiles] Transporter Review in Hi-Fi News (UK)

2007-03-16 Thread Jaco

Please people, before making such wildly speculative conclusions about
Hifi News reviews or British Hifi magazines in general, just go read
the darn review first! The Hifi News reviews are technically sound.
Their review process consists of two independent test tracks: one
performed by the reviewers by listening and comparing to other similar
equipment, and the other by thoroughly measuring the equipment. The
measurements are done by Miller Audio Reseach - you can download the
measurements for yourself from
http://www.milleraudioresearch.com/avtech/. After all that's been done
the reviewers try to correlate what they heard through their listening
tests with the independently recorded measurement results. It's usually
quite amazing how well the listening tests correlate with the
measurement results! 

Here's an excerpt from the Miller Audio measurement results:

Measured via its fixed balanced outputs using both 48kHz an
96kHz/24-bit data, the Transporter emerges as an impressive and slick
design that offers an excellent technical performance (low THD and wide
S/N), only partially let down by a relatively weak jitter rejection.
...[snip]
Measured against this backdrop, the moderate 1000psec jitter is a tad
disappointing and, being largely data-induced in nature, looks to be a
by-product of the S/PDIF input receiver rather than the DAC itself...

After noting that the Townshend CDP sounded much better than the
Transporter the reviewer writes the following:

This outcome might seem surprising in light of the Transporter's
mostly exemplary measured performance, but the results of Paul Miller's
jitter test may hold the key. While data-induced jitter can make
reproduced music sound bland, in Paul's words, the jitter figures
recorded here are moderate, rather than debilitating

Then a paragraph later the reviewer writes:

But there is still a puzzle here, in that Stereophile's recent review
of the Transporter - published after I'd already begun my assessment -
elicited much lower jitter figures, despite using the same measurement
hardware, and reached more positive conclusions about its sound
quality.

This may suggest that our review sample wasn't in the rudest of health
but, until we test another, we have to assume that it is representative
of the 230V incarnation. However that pans out, the conclusion for now
has to be that the Transporter, despite its broad capability,
attractive design and fine perfomance on the test bench in most
respects, doesn't quite deliver on its promise of high-end sound
quality. It simply lacks the resolution to mix it with the best of
conventional audio.

For those that didn't read the Stereophile review of the Transporter,
they can find it here:
http://www.stereophile.com/mediaservers/207slim/

The measured jitter results in the Stereophile test was in the region
of 250psec - a third of what was measured in the UK version of the
Transporter. For comparison purposes, really good DACS and CD players
have jitter figures in the region of 20psec. 

So, in my mind the Hifi News review was objective and very honest -
that's something that can't be said of many other Hifi magazines!


-- 
Jaco

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Re: [SlimDevices: Audiophiles] Audioengine 5 thread

2007-03-16 Thread 325xi

Pale Blue Ego;188359 Wrote: 
 They should probably be compared to something like a modest NAD or Rotel
 amp and a good $200 set of unpowered speakers.  That's really the market
 they are competing with.

Well, this is where they probably stand, but since I have no idea how
$200 speakers sound, I intentionally asked for a comparison with more
expensive gear... Not what's better, but rather how much worse they
are.


But here we come to the next question - can one do better for the
money? Not for exactly $349.99, but, well, this price range...


-- 
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Re: [SlimDevices: Audiophiles] Audioengine 5 thread

2007-03-16 Thread pablolie

Pale Blue Ego;188359 Wrote: 
 They should probably be compared to something like a modest NAD or Rotel
 amp and a good $200 set of unpowered speakers.  That's really the market
 they are competing with.

Maybe, maybe not. It depends on the setup. It would not be the first
time I see someone with a supposed audiophile setup abuse the loudness
setting because of a bass complex. Again - some monitor speakers are
lacking when it comes to foorstanding designs with more volume. It's
natural - not many passive monitor speakers focus on bass delivery.
It's application driven.


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Re: [SlimDevices: Audiophiles] Transporter Review in Hi-Fi News (UK)

2007-03-16 Thread crooner

That magazine has lost pretty much all credibility in recent years.
I have nothing against Black Sabbath but I can't imagine using this to
evaluate audio equipment.


-- 
crooner

SB3 with Custom Linear Power Supply
Lite Audio DAC-60 Tube DAC
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] Transporter Review in Hi-Fi News (UK)

2007-03-16 Thread crooner

Agreed!
That rag has lost all of their credibility in recent years.

slimkid;185303 Wrote: 
 The fact that somebody would use Black Sabbath to do any kind of audio
 comparison seriously undermines their credibility.


-- 
crooner

SB3 with Custom Linear Power Supply
Lite Audio DAC-60 Tube DAC
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] Audioengine 5 thread

2007-03-16 Thread gian

Has anyone compared the Audioengine with the Jbl Control 1, with a
budget amplification ?


-- 
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