2. amps-preamps
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Pre-amp causing loud hiss from speakers

I have a BAT VK3i with Quicksilver Horn mono-blocks and Klipsch LaScala's. This setup is dead quiet, however when I recently hooked up Rogue Audio M-180 mono-blocks there was a loud hiss coming from the speakers well past the listening spot. This noise was constant even with the volume down to zero and occurred with either balanced or rca connectors.

When I took the BAT out of the equation there was now only a faint hiss coming from speakers but one had to put your ear to it to hear it. After disconnecting all components from the BAT and putting it back in - the noise returns. I tried a Conrad Johnson Classic and there was no noise.

So does anyone have any ideas as to why the BAK and Rogue Audios amps do not play nice together?

Thanks
Ag insider logo xs@2xdeadlift

Showing 1 response by abucktwoeighty

abucktwoeighty's avatar
abucktwoeighty
1,079 posts
 
Deadlift, the same thing happened o me. Bought a used pre-amp that came with 2 sets of tubes. Turns out both sets were noisy and I thought it was the pre-amp. After purchasing a new set of tubes, I was very happy to find that the issue was the tubes, although I paid a premium price because of the value of the supposedly good tubes. My loss.
Just about two hours ago I put another new set in and they are dead quiet too. Happiness in tubeland. :)
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