What can you tell me ?

The Spectron isn't a tube amp, it's class D.

Hi Jack.

IMHO, anything bearing the name Conrad Johnson is hard to beat for value.

But, you might want to check out these other tube amps (some are hybrids):
> BAT VK-55
> McIntosh MC275
> Music Reference RM-200
> Bryston 4B-SST
> Coda S5
> Halcro Logic MC20
> Luminance Audio KST-150
> Portal Audio Paladin (monoblocks)
> Prima Luna ProLoue 7 (monoblocks)

Perhaps you spoke with Marvin in the first place - the Bryston and Halcro amps are not tube amps, but solid-state. What the hell's going on today?