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SOLD Groove Tubes Studio Series Bass Tube Preamp

Discussion in 'For Sale: Amps, Preamps, and Cabinets' started by dave79, Jun 25, 2008.

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  1. dave79

    dave79 Rest well Fish

    Man, I had no idea this thing was worth so much. Last one went on ebay for 370$ after shipping. You can't see it in the picture, but on the back there is an unswitched outlet, which means you can plug something into the back for power and it can be turned on and off independently (useful if you don't have a conditioner or something). 2 Rack spaces, footswitchable EQ.

    How about.....275$ Shipped and Insured w/paypal or money order, CONUS with US funds

    I'll trade for an EH HOG in a heartbeat. or maybe something along the lines of a 15 or 210 cab that would complement my DB359 well

    Attached Files:

  2. Michael Vee

    Michael Vee Supporting Member

    Feb 3, 2004
  3. CrackBass


    Aug 10, 2004
    i gigged one of these back in the day, fantastic preamp, even by today's standards.
  4. Webtroll

    Webtroll Rolling for initiative

    Apr 23, 2006
    Austin, TX
    why does it look like the SWR Studio 220?
  5. GrooveWarrior

    GrooveWarrior Supporting Member

    It looks exactly like the SWR Studio 220.

  6. dave79

    dave79 Rest well Fish

    Here's the story: Groove Tubes was located "across the street" from SWR. They bought the extra chassis's(sp.?) after SWR was done with their original amp. If you look on the back the electronic info is wrong, its for the SWR. 9 AMP for a preamp? Yeah, right.

    Should have better pics up later. Front shot looks really weird. At first I thought it was dust reflected in the sun. Then I checked it and its not dusty.
  7. Dr. Riddim

    Dr. Riddim In Memoriam

    Mar 2, 2002
    Tampa Bay, FL
    It looks like an SM400, too - it's just missing the balance knob. Great pre - someone should grab it NOW!
  8. squarewave

    squarewave Supporting Member

    Jun 16, 2004
    Iowa City, Iowa USA
    What year(s) was this made?
  9. dave79

    dave79 Rest well Fish

    Here's my line of thought: This was the chassis from the SWR Studio 200 (not the 220), which was around till 1987. Has to be 1987 or later. Probably late 80's.
    Ya know its funny squarewave, I can't read your posts without Peter Sellers' voice in my head.
  10. squarewave

    squarewave Supporting Member

    Jun 16, 2004
    Iowa City, Iowa USA
    He was brilliant.

    Nice Preamp. I think it is a good value for the feature set-

    12AX7 tube
    Aural Enhancer
    Bass and treble shelving controls
    Four band semi-parametric EQ (31Hz-1.5Hz)(footswitchable)
    Variable crossover
    Balanced output
    Headphone jack
    Effects loop
  11. dave79

    dave79 Rest well Fish

    Forum move bump. Thanks Josh!
  12. dave79

    dave79 Rest well Fish

    new pic
  13. RHFusillo

    RHFusillo Supporting Member

    Mar 20, 2000
    Houston, TX
    Bump for a very nice preamp. I just got one -- it sounds surprisingly good.
  14. dave79

    dave79 Rest well Fish

    Forgot this was still on here. Alright, 275$, but that's as low as it goes.
  15. dave79

    dave79 Rest well Fish

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