Quietest amp you ever owned ?

Elevick I'll have to try to pick up one of those 80s.

My nomination is a tossup between the Tom Evans Linear A and the Wavelength Triton. Both are quieter than any of the SS amps I've owned - so quiet that with my ear inside the 97dB speaker cones I can't tell if they're running. This is with the Tom Evans Vibe line stage, because all the other preamps I have except for a TVC add way more noise than either of these amplifiers.

Noise on the Wavelengths was measured during construction at .12 mV or 120 microvolts... Both are super-quiet, but the Linear A manages to put more music in front of that black background - but that's a topic for another thread.

I just changed over to balanced cables on my Spectron Digital One and it is absolutely dead quiet all the way to maximum setting on the volume control. But once fed a signal, the dynamics are unbelievable! (I also use Rothwell Electronics line attenuators on the input and Spectron's own Zobel networks on the speaker posts).

Singlepower Audio SDS-XLR tube headphone amp. Even through the most sensitive headphones with volume up all the way....Not a peep.

Red Wine Audio Signature 30.