Sequerra UA-1 Custom EL34 Tube Monoblocks - Uber Rare!

General: Uber rare set of Sequerra monoblocks utilizing a plethora of EL34 tubes (some of the best sounding). Featuring no less than FOUR discrete chassis connected by high quality custom umbilical cords. Original MSRP was $125K in the late 1990's. Yes you read that correctly, and note that MSRP works out to $257k+ in 2023.SkyFi Technical Notes:These amplifiers appear to have gone through a series of modifications throughout their lifetime. The removable front panel has a display and a bay of 10 bias adjustment trimmers. This circuit was disconnected at one point and the amp was converted to run on a single bias adjustment. This modification makes the bias adjustment less complicated, but does require a set of 10 tightly matched output tubes! We fitted both amps with fresh sets of very tightly matched Psvane EL34 tubes for this reason. In addition to the bias modification, there are various unused connections jacks and cutouts on the rear panels. SkyFi Design Notes:There is a not a lot