stony
pfm Member
I think they might experienced some quality control issues.
Lucky you because it's a great amp.
Yamaha A-S3000 spares or repair
- Thread starter twotone
- Start date
I think they might experienced some quality control issues.
Lucky you because it's a great amp.
ToTo Man
the band not the dog
I haven't had a single issue from my A-S3000 in my 6 years of ownership (now that I've said that it'll probably blow up tomorrow!
). I have, however, read reports of the bias being set too high from the factory (or perhaps the trim pots get bumped during transit?), which causes it to run much hotter than it should. Mine idles around the mid-30s degrees Celsius, but IIRC @allthingsanalog measured temps so hot he couldn't keep his hand on the top plate. I'd be curious if the two problems are linked (i.e. too high bias leads to it entering protection mode)?I haven't had a single issue from my A-S3000 in my 6 years of ownership (now that I've said that it'll probably blow up tomorrow!
From the tech guy post in the first page.
"However, I do not believe that the adjustment is changed by vibrations during transport. I think it is just a matter of quality control. Also, bias adjustment takes time. The heatsinks have to warm up until one can set the right current and this may have to be repeated because if the heatsink's temperature drops, the bias current drops as well when we are talking about bipolar power transistors (it is different for power MOSFETs)."
Paul L
coffee lounge for me
Well, I watched the end of the bid, £730 until 1 min then £740 and I expected the typical last 15 seconds flurry when it jumped to £1100ish and then was pipped by a pound or two. High price for a paperweight but low price if the repair is easy, shame about the scratches on front and rear that the photos showed though, couldn’t see the polished wood sides to see how they are.
Probably end up getting re-listed or sold on, £1100 for a non working amp? Madness.
stonehenge
Steve
I only paid £2400 for mine, new.
No not me but I did buy a new Yam AS 501 last week which sounds fantastic so goodness knows how good those big Yamaha amps sound, they must sound extraordinarily good.
Anyone have any idea what was wrong with the amp ie is it a simple fix? I’m sure whoever bought it must know what’s wrong with it and the cost to repair it or are able to fix it themselves.
stonehenge
Steve
Not really, pretty average and certainly not as powerful as the physical size suggests. My Creek Evolution 100a easily betters it for SQ and grip and the Evo is physically tiny in comparison. For similar money, the Hegel H390 and TOTR Primare amplifiers will better it considerably and no doubt many others. That said, a nice unit to own and should prove a reliable performer for many years.
