Thanks all. Not sure whether biasing the valves is beyond my skills but will have a read. Stupid question but assume you fit them and then do the bias? (Told you I might not be up to the job!)
Audio Research - should I replace the valves?
I have a AR Ref 110 power amp and AR Ref 3 preamp. Both have done about 3,800 hours. They both work but I wonder if should be replacing the valves.
How can you tell if they’ve had it? Does the sound quality deteriorate & what happens if you don’t replace them?
i don’t think they sounds as good as they did but no pops or whistles or any other strange noises etc - just a bit flat sounding. But perhaps this is just my ears?
pp
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Tube replacement is simple. Do not touch the tubes with your fingers… use a clean cloth. Biasing is easy… here is a copy of the manual in case you don’t know where it is. Do this once and you’ll be a pro. It sounds much harder than is.
Fluke meters are good and come in vastly different cost ranges. You do not need to spend a lot. I always have a multimeter around, there are hundreds of brands.
https://audioresearch.com/wp-content/uploads/2021/06/REF110_Manual.pdf |
- 29 posts total