What is a sumo nine worth today?


I have a sumo nine had it for years still in plastic in the box can anyone tell me about it and what it be worth today?
tamitha
Keep the Nine, get a pair of Quads - old or new - and you will be more than halfway to audiophile heaven!
Modernizing some of the innards (parts wise) is usually the way to go with these older amps.
I think I'm smelling some sarcasm from ebm.  It is a good amp though, & well respected back in the day. They've had one at a local shop for about a year now. If I remember right, they are asking $1200.