Description
(!!!!!) (BEST QUAD) JAN-6550A GE NOS 1985-1986 (140.0ma, 140.6ma, 141.0ma, 141ma)
1 matched quad) JAN-6550A GE NOS original boxes 1980’s 1-3% matched
1 tube) 141.0ma Gm=11,650
1 tube) 140.0ma Gm=11,050
1 tube) 140.6ma Gm=11,100
1 tube) 141.0ma Gm=11,450
Matched on Amplitrex
Good NOS Ma range 120-140ma
Good NOS Gm range = 10,000 – 11,000
(warm and punchy midrange, good bass, a very good 6550 second only to Tungsol 6550 in overall sound and drastically superior to Svetlana or Sovtek 6550)
– ARC VT60, ARC VT100 MarkII and MarkIII, Ref. 300, Ref. 600
– Audio Research Reference 3 line-stage power supply
– Luxman
– Rogue
– Cary
– VTL MB300, MB450, ST-150
– CJ Premier 8 and 11A, 12
– Jadis
– Ampeg SVT
– Comins Alessandro Jazz Guitar Amp
– Cary SLI-80
– THD
– VAC PA100/100
– McIntosh 275 MK IV 2005
– Harmon Kardon
– Audio Aero Capitole Integrated amp
