Cary Audio Cad 805 AE tube rolling


Hello;

Anyone have any experience with tube rolling on the Cary CAD 805 AE?
The best 211 I tried Amperex vt4c brass base.
Best 6sn7gt I tried mullard ecc33 as input tube and fivre 6sn7 black plate ('50 years) as driver tube. Sylvania 6sn7w metal base , tungsol RP and RCA 5692 red base were disappointing!
Standard 300b (cary audio) is ok but 300B wesatern electric ('90 years)is awesome....

Thanks, Michele
micheler
Michele, thanks for sharing your tube-rolling experience.
If I understand you question correctly, yes, tube amps must be used with a specific output tube to sound their best, however, the switch that Carry provides probably changes a few electrical parameters to make the amp compatible with 211 AND 845.
Hi Casouza thanks for the help.
If I change 211 tubes (GE, Amperex, RCA etc etc) it's needed rebiasing amp?
For 300B tubes there is a trimmer for rebiasing, no for 211 or 845 tubes!
Regards, Michele
Hi Micheler, I suggest that you ask Cary. I assume that the switch changes bias accordingly, but one can never be too cautious.
Hi Micheler,

Where did you buy the Amperex VT4C ? I used GE VT4C, Sophia Mesh Plate 300 B and Tungsol brown base. The result is very musical and powerful. Thanks.
Hi Gang. This is a general question about the Cary 805 AE
tube amps. I am getting ready to switch up from switching up from solid state (Krell fpb 700CX) to something in the tube amp gear, preferrably mono's. Any good/bad advice on the Cary 805 AE. That has come into play as far as my decision in gear. Other choices are VTL and Rouge audio.
Looking for power along with great presence of sound quality. Other gear: Audio Valve Eklipse preamp. T+A Tube output CD player. EE tube phono pre. B&W 802D'S. Any info is helpful. cbr/ tdanfor@hotmail.com