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?

tamitha08-08-2019 1:57pm

teo_audio Details Discussions Posts This discussion Message User 2,197 posts 08-08-2019 at 05:11pm Copy Comment URL Report Comment Edit Delete Modernizing some of the innards (parts wise) is usually the way to go with these older amps.