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Hiss from Zero DAC... is no longer a problem after my opamp burnt out

post #1 of 6
10/29/10 at 12:22pm
Thread Starter 

Just received my Zero DAC today. This is my first DAC, and my first attempt at a good sound system. This was suppose to me my glorious start on the road to an audiophile. Imagine my horror when this hiss assaulted my ears!

The hiss seems to be coming from somewhere inside the dac, and it gets louder with increased volume. I tried both usb and toslink input, but they don't seem to make a difference. The hiss is there even without any kind of input. I also checked the red thing in the back, and it's set to 115 (I live in the US). I also tried to check, as best as I can, the soldering and everything... nothing seems wrong

This is a big psychological blow for me as this is my first serious purchase on audio equipment. Now I am hearing hisses, hisses everywhere.
Please help!

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post #2 of 6
10/29/10 at 1:19pm
Thread Starter 

NOOOOOOOOOOO I was just messing around with my dac when I put one of the opamps in the preamp section backwards. it made the opamp smoke and probably burnt it out... 
Hopefully it didn't kill the circuit.
*sigh* time to start looking in to those opamp upgrades.

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post #3 of 6
10/29/10 at 1:33pm

Check for snakes too. They are known to hiss...

 

In all seriousness best of luck and hopefully it is only the op amp that is fried!!

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post #4 of 6
10/29/10 at 2:35pm
Thread Starter 

Thanks man.

O wow, did you know you can order free samples from the Liner Technology website? Just ordered 2 "sample" LT1364's from there. Being a student has its advantages it seems.

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post #5 of 6
10/29/10 at 5:23pm
Quote:
Originally Posted by TSTY View Post

Thanks man.

O wow, did you know you can order free samples from the Liner Technology website? Just ordered 2 "sample" LT1364's from there. Being a student has its advantages it seems.


With a non hotmail/gmail etc account you can order free samples from most IC companies. I ordered a lot from TI and AD

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post #6 of 6
11/5/10 at 8:23pm
Thread Starter 

 

problem fixed. just got my pair of LT1364's There's still a minor hiss, but that's not perceptible till ear splitting volumes.
Thanks for wishing me luck. I'm sure your sincere wishes revived my dac from the dead.

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