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Ampeg SVP Pro

4.3/5, 4.3 from 9 reviews
The Ampeg SVP-Pro Series Bass Preamp uses 5 - 12AX7 tubes to provide the true, rich, tubular tone only a genuine multivalve signal path can generate
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Recent Reviews

  1. stuonbass
    Sweet tube pre-amp
    4/5, 4 out of 5, reviewed Aug 15, 2016
    Sound:
    4/5,
    Build Quality:
    4/5,
    Features:
    3/5,
    Value:
    4/5,
    Pros
    • + Classic SVT tube tone. Warm thumping lows and crisp highs.
    Cons
    • - no DI Out volume control, I would like it to have a bi-amp xover capability.
    My experience with pre-amps has been rather limited. I have a V-Amp, and Line 6 pod which I have used with various power amps with ok results but the SVP is what I have been looking for! I bought it used and have not changed the tubes. I have had noise 60hz hum and sizzle at various clubs but not at others.
    Price Paid:
    $325
  2. bThumper38
    Great tone
    5/5, 5 out of 5, reviewed Aug 13, 2016
    Sound:
    5/5,
    Build Quality:
    5/5,
    Features:
    5/5,
    Value:
    5/5,
    Pros
    • + Great tone
    Cons
    • - none
    I got one about four months in mint cond. It had the tubes swapped already. It's not as warm as the avalon 737 I once owned, but hey, for 1/5th the cost it's not doing so bad, I'm running this into a super redhead, and have to say it's just down right kick-ass. I'd get one if you don't already have one. I'm thinking about putting some really expensive tubes in it to see what happens.
    Price Paid:
    $400
  3. fourstringburn
    Great tube preamp sound
    4/5, 4 out of 5, reviewed Aug 13, 2016
    Sound:
    5/5,
    Build Quality:
    4/5,
    Features:
    5/5,
    Value:
    5/5,
    Pros
    • + Great tube preamp sound
    Cons
    • - No D.I. level control or no ground lift switch
    Great sound, has the front panel features I desire. I found it strange that the direct out lacks a level control and more importantly, a ground lift switch. Because of this, I use a D.I. when necessary.

    I heard others complain about noise. Mine too was noisy, mostly hum. I corrected this by replacing the Groove tubes ( Chinese aftermarket garbage)12au7 tube with an Electro-Harmonix 12au7 and the noise disappeared. So now all the tubes are Electro- Harmonix. I would recommend the same fix to anyone experiencing the same problem.

    Other than that, I think this preamp rocks, especially running it into 3000 watts of stereo class D amplifier power and 2 A mpeg SVT-810's.
    Price Paid:
    $400

Preamp Details

  1. Power:
    0
    Other Specs:
    Five 12AX7 tubes
    Balanced line out
    Effects loop
    Nine-band graphic EQ
    Five-position mid tone control
    Tube Drive Control
    Input peak LED
    Input pad & bright switch
    Mute function
    Tags:
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