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Two basses one amp

Discussion in 'Amps and Cabs [BG]' started by kenmeg, Jan 6, 2014.

  1. kenmeg


    Apr 8, 2008
    G'day all

    Just double checking, I have a passive P bass and an active Jazz. My amp has a passive and active input, would it be OK to leave both basses plugged in ? Obviously using only one bass at a time.

    Cheers Ken.
  2. Stumbo

    Stumbo Wherever you go, there you are.

    Feb 11, 2008
    So. Cal.
    Sure. I'd turn the volume off of the one not being used.
  3. kenmeg


    Apr 8, 2008
    Cheers for the quick reply, thats exactly what I thought.

  4. JimmyM

    JimmyM Supporting Member

    Apr 11, 2005
    Apopka, FL
    Endorsing: Ampeg Amps, EMG Pickups
    it would be OK, but it's very unwieldy to do that. You'll find yourself needing to make adjustments on the amp to compensate for the drastic volume and tone differences. Most of us who need to switch between two different basses will usually use something like the Radial Bassbone or some sort of switching system with an EQ on one of the basses to compensate for volume and tonal differences.
  5. thefunkgorilla

    thefunkgorilla Supporting Member

    Mar 26, 2013
    I use a passive resistance mixer by DOD, I think it cost 20 bucks in 1997. It has 4 inputs, one output to the amp, and lets me control the volume of up four basses to my amp. Simple and bulletproof. Two great qualities for the working bassist.
  6. I would think it would depend on the particular amp. A lot of amps have similarly labeled ins and outs but are actually wired differently, for example my SWR heads effects return doubles as a power amp in, but that's not the case with most amps.

    My recommendation is to just buy a cheap pedal that allows you to hook up both basses to the same input. I started off with a morley ABY, then later got a boss LS2 which added the ability to control levels. Lately I use a pod HD for effects and I have separate patches setup for different basses. You can use an ABY if you also have a boost pedal that way you can boost the output of one bass to match them up. The reason I like to use pedals instead of turning the volume(s) off on the basses is on certain basses I don't run my volume all the way up. for example my fretless jazz has 2 volumes and the neck pickup is always rolled back some, On my warwick Thumb I liked to roll back the volume a little to get a more woody tone.
  7. If your amp works with both basses plugged in at the same time, I recommend using a cheap tuner pedal on each of them. That way you can mute the bass you aren't using.
  8. 2 in 1 reminds me of an old clip of BB King and T Bone Walker playing the same amp live-curly cords and all.
  9. 4Mal

    4Mal Supporting Member

    Jun 2, 2002
    Columbia River Gorge
    If you aredping this live, the Radial Bassbone - which is admittedly not cheap, is a fantasitic tool. Mine goes to every gig I do...