Hiss at addition in system LAMM L2


Hiss (noise) from speakers at addition in system LAMM L2.

Three weeks ago, I have bought preliminary amplifier L2 reference
Improvement in sounding all system was huge!!!! The overall dynamics and scale of the music!!!
Illusion of a presence(finding) in a concert hall has appeared.

But I am disturbed with the following:
At addition in system L2 strong enough noise (hiss) has appeared from
speakers. At inclusion of toggle-switch MUTE hissing disappears, at deenergizing
Toggle-switch MUTE all room is filled with noise (hiss).
Even at listening music on silent passes or piano music
Such noise level it is normal or L2 demands repair?
anton9005

Showing 1 response by unoear

Rgd and Tvad, I agree with your assessment of the Lamm LL2 preamp. Especially at its resale price it is a screaming steal and a wonderful musical preamp that flat-out danced with my ML 2.1s. I found the musically to hiss trade-off to be extremely positive...and the hiss to be sort of a small attention getter setting the stage for what was to come.