This is an Sunn Dymos from 1969/1970 (not sure exactly which year). Solid-state. 40W. 2 12" speakers. Has Reverb and Tremolo (both work). Sunn footswitch included.
If you're looking for a unique solid state amp with some nice cleans, this is your amp. If you want to play sweet doom riffs, I would recommend looking elsewhere.
Everything works, has some scratchy pots and a small dent in the wood at the bottom (pictured). The original plug has been replaced with a 3 prong one. I think these originally had this goofy pinstripe grill cloth, this one has the regular silver checked type that other Sunns of this era had.
