Herbie's Audio Lab Logo part 1Herbie's Audio Lab logo part 2

UltraSonic Rx-9 Damping Instrument

UltraSonic Rx

all-purpose hi-end

The World's Finest Tube Dampers
click image to navigate

HAL-O III-9 with Siemens Cca

for extremely hot tubes

UltraSonic SS-9 Damping Instrument

UltraSonic SS

for small-signal tubes

Guitar Amp UltraSonic 9 Damping Instrument

Guitar Amp

for severe vibration