Re: [SlimDevices: Touch] Touch and burn in

2010-04-23 Thread Covenant

Gaz, should we get Stan Beresford to remove this from the literature
that he provides with his dacs:
'Burn in
Many users report that the sound output develops in quality after a few
tens of hours of use'
Looks like this issue is as sensentive as cables so perhaps its best to
just agree to disagree?


-- 
Covenant

Covenant's Profile: http://forums.slimdevices.com/member.php?userid=36495
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-23 Thread Daverz

I'll go further: the bogus concept of burn-in is a scam to get people to
hold onto equipment beyond the product return period.


-- 
Daverz

Daverz's Profile: http://forums.slimdevices.com/member.php?userid=32335
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-23 Thread Gazjam

maggior;539159 Wrote: 
 It's from a comic strip...it's a joke.

Uhm, thanks for that... :)

course I knew it was a joke, you thought the straight line comment was
me being serious??? :)

Im happy to agree to disagree here fella's.

Why wouldn't I be serious about component burn in though?
Just wanting to get some different opinions on it...some do, some
don't.

Thanks for the comments..
Gaz
(happy in his assertions :))


-- 
Gazjam

Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-23 Thread toby10

My Touch got over burned (in use since Aug 09).
Luckily, thanks to the Audiophile forum here, I found some
cryogenically treated cables to correct this.


-- 
toby10

toby10's Profile: http://forums.slimdevices.com/member.php?userid=12553
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-23 Thread Gazjam

you just made that up  ;)


-- 
Gazjam

Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-23 Thread Gazjam

you just made that up  ;)


-- 
Gazjam

Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-23 Thread Phil Leigh

Ali Tait;539344 Wrote: 
 Ok,we'll agree to disagree then! I would accept your argument if the
 sound I was hearing changed,and stayed changed,but I've heard on many
 occasions on fitting new components,the sound wandering all over the
 place,often too much trable,then too much bass,then back again until
 the component settles.This has been most marked with coupling caps in
 my valve amps,but I've heard it to a lesser degree with other
 components.Also heard it especially in the bass,on fitting new output
 transformers.Initially bass was almost non-existent,and slowly came
 back over many hours as the new trannies burned in.Changes like this
 are very obvious in my system,as I use electrostatics,which are
 extremely revealing.

No - I specifically mentioned valve amps as the valves, HT caps
(because of the 450-600V) and o/p tranny laminations all do settle
down from new...
All of my guitar amps have done this.

Low voltage transistor and IC gear does not have this issue. On the
other hand, Class-A tranny amps and valve amps need a period of warm-up
to let the quiescent current/temperature stabilise.


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...
Touch(wired/XP) - TACT 2.2X (Linear PSU) + Good Vibrations S/W - MF
Triplethreat(Audiocom full mods) - Linn 5103 - Aktiv 5.1 system (6x
LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Blue
Jeans Digital,Kimber Speaker  Chord Interconnect cables
Kitchen Boom, Outdoors: SB Radio

Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-23 Thread JohnSwenson

Phil Leigh;539396 Wrote: 
 No - I specifically mentioned valve amps as the valves, HT caps (because
 of the 450-600V) and o/p tranny laminations all do settle down from
 new...
 All of my guitar amps have done this.
 
 Low voltage transistor and IC gear does not have this issue. On the
 other hand, Class-A tranny amps and valve amps need a period of warm-up
 to let the quiescent current/temperature stabilise.

I HAVE heard caps get worse during burn in. Specifically VitaminQ
paper in oil high voltage caps will sound pretty good when first
installed, but after 10 hours of running music they sound abysmal,
harsh, grungy, very yucky sound. After another 15 hours or so they
start getting better and by about 30 hours are about where they
started. Between 30 and 50 hours they improve some more and sound
better than they did originally. Every VitaminQ I have ever used goes
through this process. Other brands of paper in oil caps go through
something similar but with a different time table. Some take only 5
hours to sound awful. 

Plastic film caps (polypropelyne, polystyrene, polyester) don't have
this wild behavior. I have heard some improve somewhat over time, but
not nearly like the paper in oil. 

Transformers also definitely burn in. Something about the magnetic
properties of the core changing while the domains realign themselves
constantly for the first several hours of use. How much and how long it
takes is very dependent on the core material used. Nickel behaves very
differently than steel in this regard, and cobalt yet again quite
different. 

There is another completely different effect which is warm up. This
happens every time the device is turned on. Most electronic components
DO change there electrical properties with temperature. Even digital
audio can be affected by this. I have looked into this extensively and
found at least two methods by how temperature changes can effect
digital audio.

First is the resistance of the transistors inside the digital circuits.
Cold FETS have a lower resistance than hot FETS. This causes the
circuits to switch faster which means the switching currents induce
greater voltage drops/bounce on the power traces inside chips and even
in the ground planes on boards. This is not fiction, its actually quite
easy so see. Unless extraordinary measures are taken this noise WILL
affect clock circuits and even analog circuits. Its especially
noticeable in some DAC chips. They sound much better as they warm up. I
did an experiment where I took a cheap DVD player and glued a resistor
to the top of the DAC chip and fed it DC current to warm up the chip. I
also added a thermocouple to the chip to take its temperature. I could
radically change the sound of that DVD player by warming up the DAC
chip. It sounded much better as it got hot. Of course at some point it
stopped working altogether, so it CAN be over done! This might be one
of the reasons I like DAC chips that get fairly warm in operation. BTW
some DAC chips are very sensitive to temperature and others not nearly
as much.

The other method is in oscillators themselves. Many crystal oscillators
actually have lower jitter when they are warm. Crystal ovens are not
JUST for stabilizing the frequency. In my own designs I like to use
oscillators that get fairly warm, the jitter is lower than cool running
ones. 

These effects are actually exhibited in the Touch, but since the
temperature doesn't rise by a lot between cold and on for a long time
the difference is not very great.

I've seen DVD players that have powerful DSP chips that get VERY hot
exhibit these effects to a large degree. 

I did not notice any burn in effects in the Touch, but I CAN hear warm
up effects, but its not very much. 

I suppose I should try the resistor on the DAC chip test on the Touch
and see what happens.

John S.


-- 
JohnSwenson

JohnSwenson's Profile: http://forums.slimdevices.com/member.php?userid=5974
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-23 Thread konut

So John S, when can we expect your DAC and crystal oscillator oven mod
for the Touch? :D


-- 
konut

konut's Profile: http://forums.slimdevices.com/member.php?userid=1596
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


[SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Gazjam

Getting mine today to replace an SB3, looking forward to improved
digital out into my Beresford Dac.

Most new bits of kit I've had needed some time from new to bed in
soundwise. Now the Touch has been out for a while, can any experienced
users comment on if this is the case with the Touch?

Ta.


-- 
Gazjam

Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread shevans

I was surprised no one else has yet commented on the initial sound from
the Touch. Mine was very bright and the bass very undefined (muddled).
A six hours later most of this had disappeared but its taken a week of
playing to sound right. Even with its initial sound it was better
than the SB3 I have.


-- 
shevans

SB Touch, TeddySB3 (PSU), QED Digit  Positron PSU, NVA P90sa passive
pre-amp, NVA A40 monoblock's, Fostex FE206E based big purple people
eaters! The Caiman+ went back...

shevans's Profile: http://forums.slimdevices.com/member.php?userid=32505
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread shevans

Interestingly I also have had two B'DACs with my SB3, a 7510 and a
Caiman+ (both current models), neither of them gelled with my system
and the Caiman+ produced distortion on female vocals.


-- 
shevans

SB Touch, TeddySB3 (PSU), QED Digit  Positron PSU, NVA P90sa passive
pre-amp, NVA A40 monoblock's, Fostex FE206E based big purple people
eaters! The Caiman+ went back...

shevans's Profile: http://forums.slimdevices.com/member.php?userid=32505
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Quad

0/10


-- 
Quad

Quad's Profile: http://forums.slimdevices.com/member.php?userid=20234
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Gazjam

Thanks for the relpies Shevans, that's the first comments I've heard on
the Touch on it's I itial sound.
I had an sb3 before into my modded caiman, very smooth open sound..that
said, the high frequency stuff WAS a bit splashy sometimes before I
upgraded the regulators and output caps..but even at that, not had a
problem running the bdac with the Sb.

Are you using a dac wiith your touch?
How do you find the analogue outs?

The teddypsu...hmnn.
Is it worth looking into one of those you think?
Sorry for all type questions!!

Quad..
0/10??

Don't be such a muppet! ;)


-- 
Gazjam

Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread shevans

Hi Gazjam,

Currently switching between analogue and digital (coaxial), via a QED
Digit/Positron DAC, trying to tell which is best. Analogue more
enjoyable, via the DAC more information!

The analogue outputs are very good, there is always room for
improvement but will I be able to hear it? I'm really enjoying
listening to mine but may have to think about mods to the QED Digit or
look for an alternative.

The TeddyPSU (in my opinion) was a must have for the SB3, on the Touch
it make only a very slight difference to the bass notes, perhaps
slightly clearer and goes lower but my speakers are not really bass
monsters and excel in midrange.The SB3 PSU was a right sack of Cr
and flooded the mains with noise and replacing it made a huge
improvement. I may move the TeddPSU to the bedroom SB3/NVA AP10 system.
An improvement for the Touch but is it £200 worth?

I think the B'Dac issue is with the NVA pre/power amps passing through
and amplifying anything thats fed into it rater than being filtered
like a conventional amp.


-- 
shevans

SB Touch, TeddySB3 (PSU), QED Digit  Positron PSU, NVA P90sa passive
pre-amp, NVA A40 monoblock's, Fostex FE206E based big purple people
eaters! The Caiman+ went back...

shevans's Profile: http://forums.slimdevices.com/member.php?userid=32505
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Gazjam

hiya,

yeah, I hear good things about the analogue outs, especially when
compared to the SB3.

Your real world take on the improvements (will I actually HEAR it??),
ring true with mine, which makes your comments on burn in for the Touch
even more relevent. :)

Another question?
The Touch display...how do you find viewing it from a distance?
I know about the two skins and I sit about ten feet away from the
Touch looking down on it.

I found the middle text size on the SB3 quite viewable, I whilst I know
the text size is SLIGHTLY smaller on teh Touch, I would THINK that the
white text on a black background (once ive changed the default
wallpaper) will be even more legable?
How do you find it?

Thanks mate.
Gaz.


oh, just checked Royal Mail parcel tracking... :)

Your item has reached the delivery office and is out for delivery.
We can confirm that your item left the delivery office this morning and
should arrive shortly if it hasn’t been delivered already. 


Wha-hey! :):)


-- 
Gazjam

Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread shevans

The screen need to be 7 in size to be comparable to the SB3. The
viewing angle, when viewing from below is awful and really needs an
adjustable stand. Its too small as a photo viewer but Ok for its
intended purpose as long as you are not too far away. 

Only problem is our Toddler has worked out how to turn it on...


-- 
shevans

SB Touch, TeddySB3 (PSU), QED Digit  Positron PSU, NVA P90sa passive
pre-amp, NVA A40 monoblock's, Fostex FE206E based big purple people
eaters! The Caiman+ went back...

shevans's Profile: http://forums.slimdevices.com/member.php?userid=32505
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Gazjam

Thanks for that, just wondering...
do you have an old fireguard to put round it? ;)

Its just arrived, so going to set it up..will get back with how I find
it.


Cheers,
Gaz.


-- 
Gazjam

Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Covenant

I think Gaz has a good point here. Most components need a period of
burning in to achieve their optimum sound. Personally I am not going to
comment on sound quality until I have used mine for a week or so.


-- 
Covenant

Covenant's Profile: http://forums.slimdevices.com/member.php?userid=36495
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Ali Tait

I've had mine since the 12th.I can't compare it to the SB3 as I didn't
have one,and indeed this is the first streamer of any kind I've had.I
can say the Touch is better feeding my Audio Note dac than either my
Arcam or Marantz CD94 MK II,so I'd say that's a pretty good
recommendation.I downloaded somw 24/96 stuff,and it sounds fantastic
with it,quite vinyl-like was my first impression,and the resolution
through my electrostatic speakers is amazing.Suffice to say,I won't be
going back to the silver discs!


-- 
Ali Tait

Ali Tait's Profile: http://forums.slimdevices.com/member.php?userid=37387
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread garym

The needed burn-in, with modern solid state components, is between the
ears. New stuff can sound different and different (whether better or
not) makes our brain work harder. But we adjust (while components stay
the same!)


-- 
garym

garym's Profile: http://forums.slimdevices.com/member.php?userid=17325
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Ali Tait

I've had mine since the 12th.I can't compare it to the SB3 as I didn't
have one,and indeed this is the first streamer of any kind I've had.I
can say the Touch is better feeding my Audio Note dac than either my
Arcam or Marantz CD94 MK II,so I'd say that's a pretty good
recommendation.I downloaded somw 24/96 stuff,and it sounds fantastic
with it,quite vinyl-like was my first impression,and the resolution
through my electrostatic speakers is amazing.Suffice to say,I won't be
going back to the silver discs!


-- 
Ali Tait

Ali Tait's Profile: http://forums.slimdevices.com/member.php?userid=37387
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Gazjam

Wellit's here. :)

seup and running in minutes after upgrading it's software.
What a cracking little bit of kit!

I had concerns (from seeing videos online) about the screen text size
but you know what?
It's spot on. Bright, very clear and sharp. There's several now
playing views and once you switch off the silly wallpaper to a black
background, the albumart with track information is really great.
Only niggle I have is that the stand makes the Touch angle back too
far, and I had problems seeing the screen easily due to reflections and
the angle being bad.
Lego block with a blob of blutak...sorted. Fit n forget and out of
sight, now the screen is spot on. An adjustable stand would have been
better, but not to worry.

It's been playing LastFm for the last couple of hours and the sound IS
changing.
Yup, it really is. :)

the bass is firming up getting more depth as it goes..more about the
song than the hifi stuff now.
And this is on 128k MP3.

Currently setting up screensavers n stuff...very cool toy that happens
to sound as good as it does.


-- 
Gazjam

Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Covenant

garym;538878 Wrote: 
 The needed burn-in, with modern solid state components, is between the
 ears. New stuff can sound different and different (whether better or
 not) makes our brain work harder. But we adjust (while components stay
 the same!)

You are dead wrong-components, mainly capacitors, change due to
chemical reactions. The manufacturers acknowledge this themselves:
http://www.teledynereynolds.com/product/7micacapacitor/index.asp and
specialist equipment is available to measure it:
http://www.etesters.com/see/Burn-In


-- 
Covenant

Covenant's Profile: http://forums.slimdevices.com/member.php?userid=36495
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Gazjam

wot he said.

+1


-- 
Gazjam

Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Phil Leigh

I don't want to up[set anybody (honestly) but:
1) burn-in testing as described in the links posted earlier is about
stress testing (often to destruction) to determine mortality rates etc,
especially in high voltage, high risk components. The sort of components
found in audio gear are rather different - except for large caps used in
valve HT circuits. The burn-in described here is not about burning them
in to make them better it's about burning them in to see if/when they
fail

2) The mere fact that (audio) equipment ALWAYS sounds better after
being burned-in really should give you pause for thought. Why would
this be? - after all, we know that actually electrolytic caps begin to
deteriorate as soon as you start using them... What law of the universe
determines that burn-in is always beneficial to audio quality? Have you
EVER heard anyone say it sounded great at first then it got worse...
No, thought not. The reason is simple. It is NOT happening in physical
reality. 

3) Over a year ago I got my Touch. In preparation for this very
question I made some recordings (24/192) of the analogue and digital
outputs when it was just out of the box, after 1 week, 1 month and
nearly 12 months. AudioDiffMaker finds nothing different in these
recordings.

4) Human audio memory is rubbish. We are (mostly) great at pitch,
rhythm/timing, harmony, melody and timbre. Very poor at everything
else. The brain on the other hand is the most powerful and elegant
thing in creation...

5) I really hope no-one belives that the digital circuits burn-in. I
just can't recall the last time I felt my new computer improved its
speed and cripness of image, disk read speed etc during its first few
days/weeks of usage... The analogue circuit of the Touch comprise the
DAC chip, two caps and a resistor. These are not the sort of caps that
burn-in (form).


None of this matters. What matters is that you like the sound, now that
you are used to it.


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...
Touch(wired/XP) - TACT 2.2X (Linear PSU) + Good Vibrations S/W - MF
Triplethreat(Audiocom full mods) - Linn 5103 - Aktiv 5.1 system (6x
LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Blue
Jeans Digital,Kimber Speaker  Chord Interconnect cables
Kitchen Boom, Outdoors: SB Radio

Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread shevans

The changes I heard were within the first week, most noticeably the
first 6 hours or so.


-- 
shevans

SB Touch, TeddySB3 (PSU), QED Digit  Positron PSU, NVA P90sa passive
pre-amp, NVA A40 monoblock's, Fostex FE206E based big purple people
eaters! The Caiman+ went back...

shevans's Profile: http://forums.slimdevices.com/member.php?userid=32505
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Pat Farrell
Phil Leigh wrote:
 2) The mere fact that (audio) equipment ALWAYS sounds better after
 being burned-in really should give you pause for thought. Why would
 this be? 

Its clearly the mind resolving the standard buyer's remorse.

Nothing more.

 4) Human audio memory is rubbish.

+1



-- 
Pat Farrell
http://www.pfarrell.com/

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread maggior

Phil Leigh;538976 Wrote: 
 I don't want to upset anybody (honestly) but:
 
 1) burn-in testing as described in the links posted earlier is about
 stress testing (often to destruction) to determine mortality rates etc,
 especially in high voltage, high risk components. The sort of components
 found in audio gear are rather different - except for large caps used in
 valve HT circuits. The burn-in described here is not about burning them
 in to make them better it's about burning them in to see if/when they
 fail
 
 2) The mere fact that (audio) equipment ALWAYS sounds better after
 being burned-in really should give you pause for thought. Why would
 this be? - after all, we know that actually electrolytic caps begin to
 deteriorate as soon as you start using them... What law of the universe
 determines that burn-in is always beneficial to audio quality? Have you
 EVER heard anyone say it sounded great at first then it got worse...
 No, thought not. The reason is simple. It is NOT happening in physical
 reality. 
 
 3) Over a year ago I got my Touch. In preparation for this very
 question I made some recordings (24/192) of the analogue and digital
 outputs when it was just out of the box, after 1 week, 1 month and
 nearly 12 months. AudioDiffMaker finds nothing different in these
 recordings.
 
 4) Human audio memory is rubbish. We are (mostly) great at pitch,
 rhythm/timing, harmony, melody and timbre. Very poor at everything
 else. The brain on the other hand is the most powerful and elegant
 thing in creation...
 
 5) I really hope no-one believes that the digital circuits burn-in. I
 just can't recall the last time I felt my new computer improved its
 speed and crispness of image, disk read speed etc during its first few
 days/weeks of usage... The analogue circuit of the Touch comprises the
 DAC chip, two caps and a resistor. These are not the sort of caps that
 burn-in (form).
 
 
 None of this matters. What matters is that you like the sound, now that
 you are used to it.

+1

Having an electronics background from years ago, burn-in to me was
always about running electonics over a long period of time to gain
confidence that none of the components would fail due to infant
mortality.  It was about improving performance or making then work
better.

Yes, the brain and how it affects perception is very powerful.  In a
completely different area - has you car ever run smoother, faster, etc.
because you washed and waxed it?  Because you changed the oil?  Mine has
:-).  And I'm still not immune.  I recently had my car detailed and I
swear my car runs better.  Does it really?  Of course not, but my brain
perceives it as such.


-- 
maggior

Rich
-
Setup: 2 SB3s, 4 Booms, 1 Duet, 1 Receiver, 1 Touch.  SuSE 11.0 Server
running SqueezeBoxServer 7.5.0, MusicIP, and SqueezeSlave.  
Current library stats: 33,060 songs, 2,656 albums, 484 artists.
http://www.last.fm/user/maggior

maggior's Profile: http://forums.slimdevices.com/member.php?userid=9080
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread m1abrams

Phil - some people believe cables burn-in :)  Maybe if you apply
upwards of 10kV and several 100s of amps you might see a change to a
cable.  So trying to straighten someone out of the thought that burn-in
of a digital device like the Touch is a myth is a long road if they
think their copper changes the way it sounds by apply a few volts to
it.

Heck is far as they are concerned what happens inside the Touch is
nothing short of a freakin miracle.

I think the burn-in myth probably started with speakers where burn-in
actually does have some merit since you are talking about a device that
has an elastic component that does change a good bit depending on the
make as it is used.  But pretty much everything else is either pretty
static or formed within seconds of first use.


-- 
m1abrams

m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread garym

I'm so far from dead wrong based on science and electronics that I don't
know where to begin. But instead I'll just say, +1 to what Phil
said.

And I also truly believe if it makes one feel better to think that
burn-in has made their components sound better, then more power to you.
After all, this is all just for fun and personal enjoyment.

p.s. Received my TOUCH today and will play with it this weekend.  I
guess I shouldn't compare it to my Transporter until after the burn-in.
;-)


-- 
garym

garym's Profile: http://forums.slimdevices.com/member.php?userid=17325
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread shevans

garym;538993 Wrote: 
 p.s. Received my TOUCH today and will play with it this weekend.  I
 guess I shouldn't compare it to my Transporter until after the burn-in.
 ;-)

But do tell us if it sounds great the first 1/2 hr...


-- 
shevans

SB Touch, TeddySB3 (PSU), QED Digit  Positron PSU, NVA P90sa passive
pre-amp, NVA A40 monoblock's, Fostex FE206E based big purple people
eaters! The Caiman+ went back...

shevans's Profile: http://forums.slimdevices.com/member.php?userid=32505
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Ali Tait

I've certainly heard changes in things like new coupling caps in my
valve amps,and no I didn't imagine it,because they can sound bass heavy
one day,and very toppy the next while they break in.I can't say I
noticed any change in the Touch though.Sounded great straight out of
the box.Wonder how long they are run for in the factory?


-- 
Ali Tait

Ali Tait's Profile: http://forums.slimdevices.com/member.php?userid=37387
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Gazjam

pfarrell;538983 Wrote: 
 Phil Leigh wrote:
  2) The mere fact that (audio) equipment ALWAYS sounds better after
  being burned-in really should give you pause for thought. Why would
  this be? 
 
 Its clearly the mind resolving the standard buyer's remorse.
 
 Nothing more.
 
  4) Human audio memory is rubbish.
 
 +1
 
 
 
 -- 
 Pat Farrell
 http://www.pfarrell.com/

No remorse here Pat, I bloody love it!

Would that be Buyers Elation? :)


-- 
Gazjam

Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Daverz

Phil Leigh;538976 Wrote: 
 
 2) The mere fact that (audio) equipment ALWAYS sounds better after
 being burned-in 
 

This is the well-known '-practice effect-'
(http://en.wikipedia.org/wiki/The_Practice_Effect).


-- 
Daverz

Daverz's Profile: http://forums.slimdevices.com/member.php?userid=32335
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread maggior

Daverz;539083 Wrote: 
 This is the well-known '-practice effect-'
 (http://en.wikipedia.org/wiki/The_Practice_Effect).

LOL, a David Brin reference!  How appropriate on '-Earth-'
(http://en.wikipedia.org/wiki/Earth_(novel)) Day I've read Earth and
the 1st and 2nd Uplift series of books numerous times.


-- 
maggior

Rich
-
Setup: 2 SB3s, 4 Booms, 1 Duet, 1 Receiver, 1 Touch.  SuSE 11.0 Server
running SqueezeBoxServer 7.5.0, MusicIP, and SqueezeSlave.  
Current library stats: 33,060 songs, 2,656 albums, 484 artists.
http://www.last.fm/user/maggior

maggior's Profile: http://forums.slimdevices.com/member.php?userid=9080
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread m1abrams

Gazjam;539118 Wrote: 
 Just a thought...
 
 We used to believe the earth was flat, science at the time could even
 prove it...

The physics behind this tech is well defined and tested.  The earth
being flat was not well defined or tested.  Course your statement does
support my The SB Touch is nothing short of a freakin mircale :)


-- 
m1abrams

m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Pat Farrell
Gazjam wrote:
 We used to believe the earth was flat, science at the time could even
 prove it...

The ancient Greeks not only knew that the earth was a sphere, they
calculated the diameter and were amazingly accurate.

The story of Columbus is a myth, a lot of like burn in for electronics.

-- 
Pat Farrell
http://www.pfarrell.com/

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread pounce

I can imagine some sort of burn in for speakers when they are new since
they have some moving parts. I can imagine letting your equipment warm
to the operating temperature might make some difference. Maybe 5
minutes. I can also imagine letting electronics run for a few days when
you get them might held you uncover any defects in manufacturing quicker
since things typically fail in the first few days.


-- 
pounce

pounce's Profile: http://forums.slimdevices.com/member.php?userid=12645
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread Gazjam

And that graph counts as scientific proof???
The lines aren't even straight!

A small glass of warm coke for that one..
Any more?
:)

back to my OP...
I wanted to get some experienced opinions, split down the middle I'd
say.
Ill see if the Touch/my ears/brain has changed over the next week.

Thanks!


-- 
Gazjam

Gazjam's Profile: http://forums.slimdevices.com/member.php?userid=18604
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread maggior

Gazjam;539153 Wrote: 
 And that graph counts as scientific proof???
 The lines aren't even straight!
 
 A small glass of warm coke for that one..
 Any more?
 :)
 
 back to my OP...
 I wanted to get some experienced opinions, split down the middle I'd
 say.
 Ill see if the Touch/my ears/brain has changed over the next week.
 
 Thanks!

It's from a comic strip...it's a joke.


-- 
maggior

Rich
-
Setup: 2 SB3s, 4 Booms, 1 Duet, 1 Receiver, 1 Touch.  SuSE 11.0 Server
running SqueezeBoxServer 7.5.0, MusicIP, and SqueezeSlave.  
Current library stats: 33,060 songs, 2,656 albums, 484 artists.
http://www.last.fm/user/maggior

maggior's Profile: http://forums.slimdevices.com/member.php?userid=9080
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch


Re: [SlimDevices: Touch] Touch and burn in

2010-04-22 Thread m1abrams

maggior;539159 Wrote: 
 It's from a comic strip...it's a joke.

I did not realize Gazjam was being serious until his last post! :)


-- 
m1abrams

m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850
View this thread: http://forums.slimdevices.com/showthread.php?t=77727

___
Touch mailing list
Touch@lists.slimdevices.com
http://lists.slimdevices.com/mailman/listinfo/touch