1. Please take 30 seconds to register your free account to remove most ads, post topics, make friends, earn reward points at our store, and more!  
    TalkBass.com has been uniting the low end since 1998.  Join us! :)

preamp tubes for eden head

Discussion in 'Amps and Cabs [BG]' started by awa, Oct 17, 2004.

  1. awa


    Jul 18, 2004
    can anyone reccomend preamp tubes for my eden wt500?
  2. IvanMike

    IvanMike Player Characters fear me... Supporting Member

    Nov 10, 2002
    Middletown CT, USA
    i've tried a few different tubes in my wt-400
    i believe the stock tube is chinese. Sovtek tubes have a darker tone and are warmer. The chinese tubes are brighter and seem to have more gain. Overall the difference is kind of subtle once the whole band gets going.
  3. Munjibunga

    Munjibunga Total Hyper-Elite Member Gold Supporting Member

    May 6, 2000
    San Diego (when not at Groom Lake)
    Independent Contractor to Bass San Diego
    I'd stick with a 7025, whichever brand you choose. I tried a GT 12AX7 in my WT-300 and it didn't do much for me. The 7025 has a little higher gain.

    FWIW, I ordered a spare tube from Eden, thinking I'd at least get Eden ink at double the regular price ($15 vs. $7.50), but they just sent me a Ruby 7025 (Chinese). It may be that Eden has Ruby print the Eden logo on the tubes but, hey, I want it to say Eden if I'm paying double.
  4. gfab333


    Mar 22, 2000
    Honolulu, Hawaii
    I just tried swapping out the stock Ruby 12ax7 in my WT-550 last weekend with a few tubes that I had acquired over time. I tried a "never-used" NOS RCA 12AY7, a new GT 12ax7, and a new GT Gold Series 12ax7R3 (R for for Russian).

    After going through the rounds swapping out the tubes and playing a good number of fingerstyle and slapping riffs in the comfort of my living room, I was very surprised to find that the stock Ruby tube sounded the best to my ears as far as having a fat bottom end, warm mids, and refined highs which are not brittle or harsh. The Ruby tube had the most gain of the three. A friend of mine recommeded that I try the GT 12ax7R3 in particular because it would be great for bass. I found it to have slightly less bottom, and slightly harsher high end, with slightly less gain than the stock tube. I must stress that these difference were subtle, sonically speaking.

    It was a fun exercise which leaves me with three spare backup tubes in case of emergency. I'll still be interested in trying out other tubes though, so I look forward to hearing comments from others.
  5. pistoleroace


    Sep 13, 2002
    Bump - I'm interested in the differences too, I have a Eden WT 800 and have never even thought about replacing the tube with other manufacturer's tube... interesting. How does a person know what tube number to buy if someone wants to experiment? Is there a crossover chart to get the correct tube from a given manufacterer?
  6. Mike A

    Mike A

    Oct 3, 2002
    I've got a combination of J/J ECC83's and a GE 12AY7 in my SVP Pro at the moment and it sounds goooooooood.
  7. IvanMike

    IvanMike Player Characters fear me... Supporting Member

    Nov 10, 2002
    Middletown CT, USA
    you can ask the manufacturer of the amp or here. most tubes have the # right on them
    the tube in the 800 is a 7025/12ax7 (they're interchangable). there's gobs of tube info on the net as well as here on tb. do a search for preamp tube. Like gfab333 said, the stock ruby sounds about best. I couldnt remember all the tubes i tried that day, but my findings were like his. And also, like gfab said, the differences were subtle. Some circuits seem to respond more to tube swaps than others. With my demeter you can tell a big difference. With the eden you can tell, but it's not so dramatic. Even with the demeter, once the whole band gets going i'd bet you couldnt tell me what type of tubes are in it.
  8. 4Mal

    4Mal Supporting Member

    Jun 2, 2002
    Columbia River Gorge
    I'm using JJ's ecc83's in my tube pre and like them a lot. My Pre is not Eden by the way but tube to tube the JJ's sound sweeter to me. I tried GT, Mesa, Ruby and pulled a Sovtek out. Note - I'm not after high gain, just warmth and clarity and a bit of that 'soft compression'.
  9. nonsqtr

    nonsqtr The emperor has no clothes!

    Aug 29, 2003
    Burbank CA USA
    You might want to try the new GT 12AX7M. It's a nice warm tube, with excellent overdrive characteristics. 25 bucks a pop though. Still, it could be (debatably) worth it, if it gives you the sound you're looking for.
  10. jawzzz


    May 23, 2003
    Denver Colorado
    +1 I put one of these in my navigator and I think it sounds better than the stock ruby tube. I tried the silver series from GT also, but they were junk IMO.
  11. JesseMillar


    Nov 14, 2012
    I just put in a JJ ECC83 in my WT-300C and it sounds a little smoother and warmer, but I just inherited this amp and I'm pretty sure the tube I replaced was the original from 1995 (because of the Eden Silk-screening and the 12AX7 stamp in red) so it probably has a lot to do with a 18 year tube versus a new quality one.