New Sensor CorpWinged C 6550CusedSED ‘Winged C’ 6550C QuadSED WINGED C 6550. Matched Quad from Upscale Audio. These were purchased as a matched quad, not matched pairs. Perfect condition, no broken pins. These never saw more than 20 hours use because I qu...350.00

SED ‘Winged C’ 6550C Quad [Expired]


no longer for sale

SED WINGED C 6550. Matched Quad from Upscale Audio. These were purchased as a matched quad, not matched pairs. Perfect condition, no broken pins. These never saw more than 20 hours use because I quickly turned to vintage Tungsol 6550’s. The tube amps have long left the stable and it’s time to clear out the tubes. 
Also have a quad of Synergy HIFI/Create Audio EL34’s - $200.00 Penta Labs KT88 - quad never used - 200.00
I also have 2 quads vintage Tungsol 6550 gray plates/3 hole - labeled and boxed RCA