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Mini Dac TDA1543 X 4 NOS - Page 63

post #931 of 937

How reliable is this Muse DAC?

Does it break easily?

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post #932 of 937

It is fairly reliable. I have been carrying it in my bag for some time and nothing happened and it is still working. I would expect the toslink port to be the weakest point if it is being used much. But for the price I can live with a short lifetime for the product.

post #933 of 937

Thought I'd update the thread on a a few changes I've made.

 

I've changed the voltage drop resistor (510R on the stock board) to 390R, which gets 6v to the TDA1543 chips.

 

This then (refer an earlier post) necessitates 200R iv resistors, and the vref resistor of 250R.

 

After all these changes, and with 10uF Siemens MKL capacitors, I must admit this is one of the finest sounding DACs I've yet had the pleasure of hearing. 


Edited by lordearl - 10/10/13 at 6:36am
post #934 of 937
Quote:
Originally Posted by lordearl View Post
 

Thought I'd update the thread on a a few changes I've made.

 

I've changed the voltage drop resistor (510R on the stock board) to 390R, which gets 6v to the TDA1543 chips.

 

This then (refer an earlier post) necessitates 200R iv resistors, and the vref resistor of 250R.

 

After all these changes, and with 10uF Siemens MKL capacitors, I must admit this is one of the finest sounding DACs I've yet had the pleasure of hearing. 

It would be great to compare a stock one with the modded version.

post #935 of 937

I've been working on creating a 12v power supply to replace the Chinese wall wart that came with my MUSE DAC. The challenge in doing this was really just being able to build one that can provide enough current to this power hungry DAC. I sourced out the parts and was able to throw together a breadboard prototype and the other night soldered together a first pass protoboard prototype. 

 

The only challenge at this point is keeping the voltage regulator and rectifier cool due to the 2A current ;)

 

I'm unable to attach pictures to posts (yet?), so I'll post these links to two crappy cell phone images I took:

 

Picture 1 - 12v Protoboard Power Supply

Picture 2 - 12c Protoboard Power Supply

post #936 of 937

Hi have receive an new dac because it does not work totally dead.

now i have listen to the dac distortion at some levels, using other dac now distortion

 

any solution?

post #937 of 937

I have solder all TDA 1543 of the defect board, and place new one

it works fine now.

 

but i have notish 

 

both chips have Philips logo
one TDA 1543 HnH1272 (21412) work
one nH9051Y (11895) work not only noise
 
both are new what is the difference?
 
 
regards
 
 
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