2. amps-preamps
  3. 1017075982

what did I do? channel hiss in McCormack DNA 0.5.

I was swapping preamps with the DNA 0.5, got a loud noise, and now there is an audible hiss from the left channel. I hear it on soft music or when I'm not playing anything. I don't hear it on louder stuff. Then, the music sounds great! I don't know what I did, but I know I wasn't careful. What's it sound like the problem could be? What should I do to find out/ fix it? Can I do any troubleshooting on my own, or is it best left to the pros?

Thanks,

Robert
robertd

Showing 1 response by summitgnp

summitgnp
8 posts
 
Suggestions:

Put the original pre-amp back into the chain - Is the noise present?

If so - most likely the amp

If not - most likely the new pre-amp

If the original pre-amp is not available try this -

switch the interconnects at the amplifier end only (ie right to left input and left to right input)

Is the noise present in either channel? - if not, could be a grounding issue with the interconnect.

Is the noise in the left channel? - if so, most likely the amp.

Is the noise in the right channel - if so, most likely the pre-amp.

Hope this helps
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