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Mini Dac TDA1543 X 4 NOS - Page 8

post #106 of 937

Just ordered a metrum nos dac.. Lead time 8-10 weeks...

 

my muse seems do work well, if its not too hot. the first 24 hours it was on top of my cd transport (which don't get really hot and usually is on stb) directly in contact metal to  metal - that might be what tipped it over to over heating. Since I put som rubber feet on the muse and slid a CD cover between it and the CDP, it's been ok. Sounds excellent. 

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post #107 of 937

when you get the Metrum

w

... impression, please... wink_face.gif

post #108 of 937
Thread Starter 

Well I can't get my dac to fault.  Its been locked onto a toslink signal for well past 100 hours.  Its well ventilated though.  Please post some impressions about the Metrum VS the Muse, it should make for an intrigueing result.  Perhaps you can set some info about what DAC chip it uses.

post #109 of 937
Thread Starter 

Well I can't get my dac to fault.  Its been locked onto a toslink signal for well past 100 hours.  Its well ventilated though.  Please post some impressions about the Metrum VS the Muse, it should make for an intrigueing result.  Perhaps you can set some info about what DAC chip it uses.

post #110 of 937

Metrum report is due in 2 months :-)

 

My Muse seems to work like it should now - slid a cd cover between it and the cd player and also attached some small self-adhesive rubber bumpers underneath it. Better ventialation. Have left it on for at least 3 days. 

 

EDIT: 4th day - malfunction. It's been off for several hours - still don't work....


Edited by ardilla - 1/12/11 at 7:43am
post #111 of 937

Update on my Muse.. Now it seems to be dead for good :-((

 

EDIT: It works again! This is a superb unit if you find that life is boring. Every day is a surprise. Sometimes good, sometimes bad. 

 

Anyway - it seems like the clue is that when it gets stuck (malfunctions), it needs to cool down a bit, then I have to trun it off, unplug the digital in, set the switch to desired position, turn on power - and then put the digital input back. Puzzling. 

 

Anyway - I have ordered one more. Since the switch is not for daily use - I need two. Love the sound of it. Think I'll get a descent power supply with an accesible on/off switch :-)something like this (been suggested before) - and use a Y power cable to power both units with the same power supply.

 

http://cgi.ebay.com/60W-Linear-Power-supply-T-AMP-TA2024-TA2020-DAC-/120609333234?pt=LH_DefaultDomain_0&hash=item1c14e05ff2#ht_2362wt_903

muse 12 V psu.jpg


Edited by ardilla - 1/13/11 at 4:00pm
post #112 of 937
post #113 of 937

Anybody knows: Do the Muse min dac 4x support higher bit-rates?

post #114 of 937
Thread Starter 
Quote:
Originally Posted by ardilla View Post

Update on my Muse.. Now it seems to be dead for good :-((

 

EDIT: It works again! This is a superb unit if you find that life is boring. Every day is a surprise. Sometimes good, sometimes bad. 

 

Anyway - it seems like the clue is that when it gets stuck (malfunctions), it needs to cool down a bit, then I have to trun it off, unplug the digital in, set the switch to desired position and then put the digital input back. Puzzling. 

 

Anyway - I have ordered one more. Since the switch is not for daily use - I need two. Love the sound of it. Think I'll get a descent power supply with an accesible on/off switch :-)something like this (been suggested before)

 

http://cgi.ebay.com/60W-Linear-Power-supply-T-AMP-TA2024-TA2020-DAC-/120609333234?pt=LH_DefaultDomain_0&hash=item1c14e05ff2#ht_2362wt_903

muse 12 V psu.jpg



 

That PSU will have more than enough grunt to power 2 of the Muse dacs...just need to split the power with a custom "Y" cable.  I hope the unreliability of your unit is an isolated unit, because I hardly use this dac now that I have the Reference 7, which when mated to my just received Audio GD Phoenix amp removes any desire I have for another NOS dac or tube amp for the time being.  I highly recommend investigating Audio GD headphone amps if they are all voiced similar to the Phoenix as this is the sound I am after - it even made my DS Bryston sound very organic and lifelike (NOS like) which is a real surprise to me.

 

I did notice that the input switch does not work on some PSUs and on my car battery cold or hot...but the switch works fine on the supplied PSU...why this is? I have no clue.
 

Quote:
Originally Posted by ardilla View Post

check out this NOS dac - priced at 3808 € !?! (1 EURO is 1.33 USD)

 

Progression 4705 DAC

http://www.sakurasystems.com/products/47dac.html

 

http://tecsart.com/en/categories/digital-sources/products/1/progression-4705-dac.html



Zanden is a high end brand.  Their NOS dacs sell at about 10K US dollars!


 

Quote:
Originally Posted by ardilla View Post

Anybody knows: Do the Muse min dac 4x support higher bit-rates?


It can accept any signal to the limits of the DIR9001 input receiver.  That is 24 bit 96 khz.  The 24 bit will be remapped to 16 bit internally, the 96khz signal remains intact I believe.  Therefore highest real resolution is 16/96.  I am not too sure but I believe this is correct.

post #115 of 937

Just a thought: Could it be that the power-supply has a too high voltage output - and that is the reason for the malfuncition? 

 

This is also a 4x1543 (previous version??) but it seems to be using CS8412 instead of the DIR9001. It has a 9V power supply.... 

http://www.ioffer.com/i/mini-hi-fi-4x-tda1543-parallel-connection-nos-dac-b-147683115

 

Since it starts working again when I unplug and reconnect the spdif cable - there might be reason to assume that the receiver module is the problem...

post #116 of 937
Quote:
Originally Posted by SP Wild View Post



It can accept any signal to the limits of the DIR9001 input receiver.  That is 24 bit 96 khz.  The 24 bit will be remapped to 16 bit internally, the 96khz signal remains intact I believe.  Therefore highest real resolution is 16/96.  I am not too sure but I believe this is correct.


in the past time before TDA1543 implemented in NOS configuration, it used to be run in 4xoversampling... (equal to 176.4KHz)... but according to the datasheet, TDA1543 can even accept up to 192KHz sampling rate...
 

post #117 of 937

Are you saying that the little Muse 4xTDA1543 will handle 24/192?

post #118 of 937


It will not..

 

Far as I know it supports 16-bit, and 32-48khz at most.  Meaning anything above that will be down sampled.

Quote:
Originally Posted by ardilla View Post

Are you saying that the little Muse 4xTDA1543 will handle 24/192?

post #119 of 937

Though can accept sampling rate upto 192KHz, TDA1543 can only accept 16bit data. so that is like what SPWild said before... 16bit 192KHz. But frankly, I doubt the need to have more than 44.1KHz on 16bit data... nevertheless there is no ready material for 16bit in 192KHz...

post #120 of 937

I have detected another strange thing about my Muse unit. 

 

On a specific piano track (Olga Konkova - Album: My Voice - Track3: I Could) - there was an occasional slight "broken speaker"-sound some specific places in the song. I tried with my other headset, same thing same place. Then I switched to my NaimDac - no "broken speaker"-sound! How can this be?? The muse sounds flawless and beautiful otherwise (when it works - but now it mostly does).

 

If another Muse mini dac owner (SPWild?:-) would care to try out this specific track - pm me your mail and I'll send the mp3. 

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