2. amps-preamps
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preamp-poweramp hiss (loud)

I have a PAT-4 STEREO-150 Dynaco setup. When units are hooked up together, and balance control in center position, hiss is very loud. With balance far right or left, no hiss. I hooked power amp up to another preamp, no hiss. Both units have 2-prong plugs. What am I doing wrong?
ermartini2b37
bob_bundus
1,834 posts
 
I used to have a PAT4 & it was rather noisy. Can't explain what's happening re: your balance control affecting that though? I did replace all the stock resistors with low noise metal films of identical values, which helped alot.
shaqspack's avatar
shaqspack
91 posts
 
Try hooking units to different circuit (from different breaker) in house. A monster 3500 helped when I had similar problems w/ amp. Get the balance control checked. Only thing if it is not the balance, you have left and right out of phase with each other. Good luck. I really would go to good dealer/shop with this ??
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