|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
136.61.73.191
In Reply to: RE: A good vintage Audio Research Amp posted by RIQUE on January 19, 2017 at 20:51:09
There are few options in ARC amps with 200 watts of power.
Some possibilities would be VT200, VTM200, D250. VT200/VTM200 will be 10-15 years old. D250 would be 30 years old.
I would avoid the hybrid M300.
Follow Ups:
is 100 watts/channel, I gathered he meant a 200 watt total output amplifier.
Perhaps he is considering doubling output and will clarify.
Lost of nice ARC options in the 100 watt range.
M100 would be an incredible amp for vintage. Dual mono. I know of pair for sale and I have been tempted. Always wanted a pair.
I remember them very fondly, my very favorite tube amp from the 80's although I never owned a pair.
Mid 80s vintage. Unlike the VT series which was a pain to set bias, I notice those have front panel trim pots.
The one ARC amp that I really liked was the 100wpc VT-100mkII. I'm sure the mkIII was probably very nice too, the last of the VT-100 series. I haven't tried that many ARC amps but that one I truly liked. Some others, not so much.
I was not impressed w/ ARC integrated amps.
I was not too impressed with the ARC VSi-60 integrated.
Abe,Until you first posted your excellent step by step procedure for biasing the 6922 tubes in the ARC VT100 MK2 I wonder how many guys with the VT 100 and Mk 2 were aware the 6922 input and driver tubes needed to be biased?
Abe, did you ever think it was odd that ARC did not mention anywhere in the user owners manual the 6922 tubes needed to be biased? Or not doing so could cause serious damage to the tubes including the power tubes, as well as causing the screen resistor of a 6550 power tube/s to blow. And worse yet damage to circuit board traces.
Edits: 01/21/17
Man, those webpages are from a long time ago!
No, I never gave much thought to the fact that ARC never mentioned biasing of the 6922 tubes. I figured they probably never expected customers to ever replace them. Signal tubes typically last a very very long time, much longer than most audiophiles have patience for. We tend to swap out tubes sooner than necessary.
Careful consideration should be given for the VT200. It is not for the novice or faint of heart when it comes to biasing the 6922 input and driver tubes.
I used to bias my Dynaco Mark IV amps and I did not consider it to be difficult. Is it that difficult to bias a small signal tube?
Dave
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: