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It's been stored somewhere damp. It's probably fine, but I would want to have it thoroughly checked by a tech, and I definitely wouldn't pay the normal price for it, just in case.
Especially if it came from Guitar Guitar...
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
http://www.ebay.co.uk/itm/Mesa-Boogie-Studio-Preamp-/192187946714?hash=item2cbf4b56da:g:Xe0AAOSwKytZGf89
Well now I'm worried... that's where I got my RoV and it's with them for a warranty check-up now, though I did buy it at the price it was pre-hike.
The JFET switching is a well-known problem on them though, that is true - as are those jumper cables.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
Its more Mkii or iii in character, that mid heavy sound.
It doesn't do the loose boomy low end wallop that a recto does, it's much tighter and thicker.
I think the low end wallop is more about the power amp than the pre amp.
Essentially the Mark Series sound is a hot-rodded Fender Blackface circuit with the EQ pre-distortion, and a Rectifier is a hot-rodded Bassman/Marshall circuit with the EQ post-distortion. Even with the graphic EQ being post-distortion, a Mark can't sound like a Rectifier or vice versa.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
"The JFET switching is a well-known problem on them though, that is true - as are those jumper cables."
What sort of problems with the FETs IC? Do the devices themselves fail or the control systems?
As I am sure you are aware(!) I am familiar with a range of products that use them extensively. Mind you, the mixer industry is pretty much based on FET audio switching and you don't hear of problems. IIRC the J112 is the most commonly used device, do Mesa use same?
Dave.
I'm not a great fan of the switching on modern Mesa amps, I much preferred the Vactrols they used to use - although those aren't immune from failure either - but we know why they don't use them any more!
To be perfectly honest I am beginning to not be a fan of complicated valve amps with automated switching in the valve sections at all, they often cause more problems than they solve...
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein