I need a quiet tube amp

Hey guys...I need suggestions on quiet tube amps (SET and P/P suggestions are welcome). I know some very respected makes that create quite a bit of noise with efficient speakers and am wondering what's out there that's good sounding, well built, and quiet. I've got a 300B amp from a well regarded Japanese company that gets noisy at high levels with my 87db ProAcs. I can even slightly hear the buzzing at seat position 9 ft away. I've owned other tube amps that didn't do this and am getting a 2nd amp for the system and want something as quiet as possible. Thanks in advance, Audigoners!