69 Sunn 2000S 120 Watts all tube power. Financial requirements are forcing the sale of this killer amp. I'd almost part with my next unborn male child first. It has performed flawlessly. 4 6550s. This is a rare and historic amp. Buyer to pay all shipping costs 58lbs+ from 95666 zip. I can send detailed pictures to serious buyers. I have net references and can accept PayPal or Money Orders. If your looking for classic tube tone, short of an SVT, this amp does it and weighs about half as much.