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First problem ever with my Eden 800

TimBosby

Somewhere in middle America
Gold Supporting Member
Dec 19, 2004
11,938
10,351
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Omaha, NE, USA
So my Eden 800 (A) finally crapped out on me minutes into some basement practice this evening after 2 or more years of steady playing with zero problems. I bought it used and it was probably a year or two old at the time so I'd estimate it is 4-5 years old (can't remember what year but I know it is written on the back.) Anyway, I started to hear fizzling cracking sounds as notes decayed so I switched basses and the problem was still there. Then the lights on the Eden blinked and it cut out completely. I turned it off, unplugged everything, turned it back on without any basses plugged in, cranked the Gain and Volume all the way up to listen to it. Nothing out of the ordinary. Turned it all off and called my gear expert friend who said it sounds like a blown preamp tube or two. He said he'd look at it and then I could take it in to a shop for repair. So I'm taking it to his house next week. Fortunately no gigs until July 27th so I have at least a couple weeks. He started describing how to take the amp apart myself, describing the inner parts. When he said "Be careful with those..they can kill you" I decided to leave the tinkering to the experts.
 
The 800 seems to have a not too great rep in this forum....and I'd rather brush my teeth with Chinese toothpaste than buy another Eden amp again, just from my personal experience in dealing with them. Hopefully yours isn't a serious problem.:hmm:
 
So my Eden 800 (A) finally crapped out on me minutes into some basement practice this evening after 2 or more years of steady playing with zero problems. I bought it used and it was probably a year or two old at the time so I'd estimate it is 4-5 years old (can't remember what year but I know it is written on the back.) Anyway, I started to hear fizzling cracking sounds as notes decayed so I switched basses and the problem was still there. Then the lights on the Eden blinked and it cut out completely. I turned it off, unplugged everything, turned it back on without any basses plugged in, cranked the Gain and Volume all the way up to listen to it. Nothing out of the ordinary. Turned it all off and called my gear expert friend who said it sounds like a blown preamp tube or two. He said he'd look at it and then I could take it in to a shop for repair. So I'm taking it to his house next week. Fortunately no gigs until July 27th so I have at least a couple weeks. He started describing how to take the amp apart myself, describing the inner parts. When he said "Be careful with those..they can kill you" I decided to leave the tinkering to the experts.

There's only one tube in the WT-800, a 12AX7 or 7025 dual triode. It's easy to replace once you get the cover off. I doubt there's enough residual charge on any of the capacitors to kill you.
 
The 800 seems to have a not too great rep in this forum....and I'd rather brush my teeth with Chinese toothpaste than buy another Eden amp again, just from my personal experience in dealing with them. Hopefully yours isn't a serious problem.:hmm:

I used a WT-800A for at least six years without a problem. I sold it to buy a WT-800B a few years ago. No problems with that one, either.
 
I've never heard anything bad about Eden..., then again I don't have times to read the forums that much (except the classifieds!! :hmm: ). IMHO some of the best gear I've ever played........ I don't think it's a serious problem, and even if it is, well, even the best equipment can break. I've never had a problem before this and like Munji I'll still be a loyal Edenite :)
 
Dying preamp tubes can sound like that.
As Munji noted, there's only one, it's easy to get to and replace.
Should be a cheap, fast fix if that's what it is.
 
My 800B is still working perfectly, and I'm sad to see it go honestly. I'll get a 550 as a backup someday...

However, this is what's happening on the SWR Bass 350 I just got. I have two tubes and it happens with each. Could it be both are bad, because this is my exact same symptom? And the DI is pretty noisy. If you play fast and don't let the notes ring out, it buzzes at the end.
 
I wouldnt even consider that a problem with the amp. I know anytime I get an amp used. I replace the tube right away. Depending on how much you gig and how it has been taken care of, needing a new tube is not a big deal at all. Good luck and I hope thats all it is (thats what it sounds like to me too)
 
So my Eden 800 (A) finally crapped out on me minutes into some basement practice this evening after 2 or more years of steady playing with zero problems. I bought it used and it was probably a year or two old at the time so I'd estimate it is 4-5 years old (can't remember what year but I know it is written on the back.) Anyway, I started to hear fizzling cracking sounds as notes decayed so I switched basses and the problem was still there. Then the lights on the Eden blinked and it cut out completely. I turned it off, unplugged everything, turned it back on without any basses plugged in, cranked the Gain and Volume all the way up to listen to it. Nothing out of the ordinary. Turned it all off and called my gear expert friend who said it sounds like a blown preamp tube or two. He said he'd look at it and then I could take it in to a shop for repair. So I'm taking it to his house next week. Fortunately no gigs until July 27th so I have at least a couple weeks. He started describing how to take the amp apart myself, describing the inner parts. When he said "Be careful with those..they can kill you" I decided to leave the tinkering to the experts.

Preamp tube is one; also, my WT800B blew some kind of small power supply thingy once; cost me $90.00 to replace it.

I don't know if the preamp tube would cause the lights to go out unless it was completely blown, which is rare. May be indicative of something else. And you won't kill yourself replacing the preamp tube; open up the cover, pull it out, stick a new one in. Just don't stick your tongue on the output capacitor connections to the main board, but it's really hard to get it in there, anyway, and usually they're all dusty and don't taste very good.

:smug:

You're lucky its not under warranty... that's all I'll say about that. :D

I'm on the wagon...

I love the fact that this amp has two effects loops (EBA requirement).

;)
Cameron
 
Blown tube. Swap it, keep on truckin'.


+1.. while a couple of recent Eden products have run into problems, the original WT800 is one of the classic workhorses of all time... a classic... SVT, SWR400,GK400/800, Thunderfunk (IMO:) ), etc.

It's most probably just a simple preamp tube swap (I'm clueless about electronics, and I've done this myself) and you should be good to go. If it's more than that, it's still worth getting it fixed... once fixed, my guess is, you are good for another 10 years or so.
 
The 800 seems to have a not too great rep in this forum....and I'd rather brush my teeth with Chinese toothpaste than buy another Eden amp again, just from my personal experience in dealing with them. Hopefully yours isn't a serious problem.:hmm:

The 800 has a great rep here and elsewhere. I've read many of the Eden complaint posts and they rarely involve the 800A or B, and some posters take the time to mention the great experiences they had with this amp over many years.

It's a workhorse and is a staple of rental backlines here.

Sounds to me exactly the problems an old preamp tube would cause. Don't be afraid to take off the cover to replace the tube, it's easy as pie. Just don't strip the stupid little screws like I did on a WT-550.
 
Could be a simple tube replacement... one 12ax7.. cheep.. could also be a cold solder on filter cap on supply board... but that is usualy a much louder crackly sound.. not always though.. good luck.. chances are its a simple fix

Ya did it! Didn't bitch about them once! We're so proud of you, son!

:smug:

That wasn't so hard now, was it?

But I will miss your rants, man... they were freakin' hilarious!

Just look forward to the next equinox...

:D :D :D

Cameron
 

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