Not to take anything away from the excellent musical performance of this 120W/Ch power mos-fet amplifier, but:
A potential buyer should be informed that it is, in fact, an AVA amplifier built into a Dynaco ST-150 box. The metal parts and power transformer are Dyna parts, but all internal active circuits are unique AVA designs, so there is no resemblance to original Dynaco specifications or performance.
The asking price is still a bargain. Note too that we still can service this unit and can still upgrade it into an AVA Synergy 240 amp, complete with multiple regulated power supplies.
Frank Van Alstine