Quote:
Originally Posted by birdland
HI Dan:
Thanks for the response.
yes I agree. I had even unplugged the power cord so there is no way the amp could power on. I have contacted my local tech and I have emailed Audio Research in case there is a known issue surrounding these particular resistors. I hope this isn't the Teflon capacitors failing. They are known to do that.
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My understanding is that all ARC amps except for the most recent models did not have a fuse in the signal path so if a tube Arc'd for some reason- resistors fail to protect the rest of the amp. They are easy to fix by a qualified tech but do require someone to solder in new resistors. ARC has always felt this extra work was worth it to keep a fuse out of the signal path and protect SQ.
This is a layman' answer based on my understanding and me owning Ref 250s, ref 150 and VS115. I do think they have changed their position on most current amps
Good luck...takes some effort but hopefully easy fix along with checking tubes
If it makes you feel better I have a ref150 with the big Teflon caps and it's still running great about six years in