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I hate biasing!

I have owned the Audio Research Reference 75 for close to a year now and do not foresee it leaving the system anytime soon.  BUT...I am continually challenged by lining up the biasing stick with the screw associated with biasing each side each side of the amp...If you own this amp would appreciate any shortcuts you have found which streamlines the time it takes to correctly position into the screw.

Thanks
mattkimb96
elizabeth
6,726 posts
 
Hi bifwynneYes it is me.
I came back just to answer one post  I knew the answer and it seemed no one else did.That got me back.I also stayed as I was buying some new stuff and as usual liked to talk about it.I got a pair of Magnepan 20.7 to replace my 3.6s.And a fancy DAC/ SACD player.SO now I am set for a while again.
polk432
1,116 posts
 

Try biasing  a pair of Canary M 350 monoblocks. Screws like on the inside of a watch and not Philips heads either. however, I wouldn't trade them for anything under 40k.

lostbears's avatar
lostbears
479 posts
 

 You should be using a plastic bias adjustment tool and not a screwdriver. If you are using tubes that are properly matched, you should not have to adjust the bias much once the tubes have initially settled in.

 The ARC Ref amps are very easy to bias. There are a lot of more difficult amps to bias. Look at some of ARC's older tube amp designs.


mattkimb96 OP
104 posts
 
Once I get the plastic bias tool into the podemeter adjustment screw the biasing is a snap.  Just can take awhile to get the plastic tool into the relatively small adjustment.  I am typically biasing ever 4 to 6 weeks.
noromance's avatar
noromance
1,780 posts
 
4-6 weeks? Is that normal? Am I being remiss with my (non ARC) amps? I did it once 2 years ago and they’ve been fine since.

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