Like its predecessors, the 610T monoblock is based upon a push-pull, fully balanced vacuum-tube circuit using 6550C output tubes (16 in all). Unlike the earlier models, the 610T…

Beautiful highly coveted tube amplifier from Conrad Johnson. I am the second owner with very low hours on the EL-34 tubes. Rating due to age looks more like…

Up for Sale is a pair of Dynaco ST-70 based Vacuum Tube Amplifiers. These are 100% custom built and CNC machined chassis out of solid brass plate that…

Up for sale is my three week old Audio Research GS150 Tube Amplifier. The unit has only 83 hours of use (see pictures). The unit is in perfect…

An incredibly sounding Integrated amp! A very special and extremely limited (to 100 pieces) collaboration between VPI founder Harry Weisfeld and longtime friend Steve Leung of VAS Audio,…

The M500 is a class A triode mode, push-pull parallel mono block power amplifiers with 300B output tubes. It features a modified circuitry that guarantees a more dynamic…

Cosmetic Description: 8/10 Excellent condition with minimal visible cosmetic wear including very small dings around the display, a fine scratch on the right side of the display, and…

All in all, this is a handy and relatively simple addition to my tube amp building bench. And it is a lot cheaper than custom extrusions or lab…

Hybrid transistor-vacuum tube headphone amplifier, which combines the smooth, musical sound of tubes with the high output current of transistors. It is specifically designed for driving low impedance…