Quietest amp you ever owned ?

Yamaha MX1000U
(1979 - solid state, 760wpc @ 4ohm; 960wpc @2ohm; 460wpc @8ohm) which I still use with fabulous results. I am amazed that for the power output and the cheesy original power cord that this monster does not put out ANY noise. Totally clean.
Even my CR-1020 (1978 - 90wpc @4ohm; 70wpc @ 8ohm) which is in a separate system performs in the same quiet manner.
A while ago I sold my much newer Mac and a Krell but kept the Yamahas. Do it again Yamaha ... where'd you go.

Bob,
The 80 can't be compared to anything Dynaco originally produced. I've played with 70's and even had a pair of fully restored/upgraded MKIV's. Nothing can touch this amp. Panor+25 years of technology really made a difference.
The re-release of the 70 should be quite nice also. Finally, I do believe there is a 160 out there.

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).