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Carl Martin Route Box Double A/B Footswitch  

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So you're out on a gig playing both acoustic and electric guitar, and want to use the same effects pedalboard, but don't want to keep plugging and un...Read More

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Like a traffic controller for two guitars.

So you're out on a gig playing both acoustic and electric guitar, and want to use the same effects pedalboard, but don't want to keep plugging and unplugging your instruments. The solution simple, thanks to the Carl Martin Route Box footswitch. The double A/B footswitch pedal routes 2 guitars to either of two amps. Simply connect the 2 guitars to the Carl Martin Route Box's instrument inputs, and plug the route box output into your pedalboard. Connect the pedalboard into the Route Box input, and back out to your amp. You can even plug into an additional amplifier for even more control of each instrument's sound. The Carl Martin Route Box's amp select footswitch keeps the two instruments, two amps, and one pedalboard routed and dedicated.

  • Pedalboard input/output
  • Instrument 1 and 2 input
  • Amp 1 and 2 output
  • Instrument select footswitch

A convenient way to route two guitars through the pedalboard to up to two amplifiers.


Route Box Double A/B Footswitch

  • Power: 9V DC
  • 9V DC adapter plug (+ on ring)
  • Power consumption: 15 mA
  • S/N ratio: 62 dB
  • Input Amp input: 1M Ohm
  • Instrument inputs: true bypass
  • Output 1: 100 Ohm
  • Output 2: 100 Ohm
  • Dimensions: 4-3/4"D x 3-3/4"W x 1-13/16"H
  • Weight: 1lb.

Review Snapshot®

by PowerReviews
Carl MartinRoute Box Double A/B Footswitch

(based on 4 reviews)

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Reviewed by 4 customers

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(1 of 1 customers found this review helpful)


Only carl martin

By Siam

from Alexandria/egypt

About Me Professional Musician


  • Compact Design
  • Excellent Sound Quality
  • Responsive
  • Versatile


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    Comments about Carl Martin Route Box Double A/B Footswitch:

    It's only carl martin...yes ...long time i have looking for a switching pedal makes me use my electric guitar & acoustic guitar through my pedalboard direct to my both two outputs..guitar amp/mixer....without building a new small pedalboard for my acoustic....first i said ok..i'm saving money with this switch...so there gonna be a tone loss or signal problems for that way of saving money...& once i used this switching machine i have been amazed by it...does what i exactly wanted...no coloring of tone...no signal loss...carl martin routing pedal is the only pedal with a/b inputs & a/b outputs..& notice you can select the a instrument with the b output...heavy duty pedal with very clear colored leds which makes it easy to see on stage..carl martin the only company who produced this switching system...looked for another brands...but u have to pay for 2 or 3 switching pedals to have the a/b inputes with the a/b outputes...plus the individual in & out for the pedalboard...amazing product

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    (5 of 5 customers found this review helpful)


    Awesome switcher pedal

    By Joseph McDaniel

    from Louisiana

    Comments about Carl Martin Route Box Double A/B Footswitch:

    This pedal lets me use my acoustic and electric through the same pedal board. I was playing through two different amps but now I play through a Rivera Sedona and use the pedal to switch between imputs. Great pedal
    It does just what it says and well!
    Rock Solid

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    (6 of 6 customers found this review helpful)


    Carl Martin Route Box - The Name Says It All...

    Comments about Carl Martin Route Box Double A/B Footswitch:

    I'm very satisfied and I would recommend the Double A/B Route Box to anyone. Just remember; you spend more, you get more. It's easy to use and has a 9V AC jack which works nicely with any PEDAL BRICK Multi-pedal power supply. The only bad thing I can say is the switches are a little close together so I sometimes hit both switches on accident. This is also a feature however because in some of the music I play I want delay on in one of the amps and delay off in the other amp immediately so I can do that with one step by hitting both switches simultaneously.
    I use mine a little different than the intended purpose in the description. I do use the amp a/b outputs as intended to switch between 2 amps, but instead of using the instrument a/b channels for different guitars, I use it to either bypass or acitvate my DD-6 delay pedal, which I keep on Tap Tempo mode. It becomes an on/off switch which I hooked up using a Y cable. I rate it 10 because it does work nicely for the way I use it and as the other reviewer said, the different colored LED indicators for each a/b channel are indeed a nice touch.
    I used to used a Morley a/b to switch my delay on/off but it soon became apparent that I needed something better because there was an annoying pop when I turned the delay on/off. This pedal solved the problem, and with the other a/b channel routing to 2 different amps, I have yet to hear any kind of ground loop hum or other noises. I pretty much expected perfection from Carl Martin even before the purchase and so far that is what I have. This pedal is built very solid, I'm sure it will be on my pedalboard for years to come.
    A little expensive for what it does...but I don't regret buying Carl Martin. I also have a CM Plexi-tone boost/OD/Distortion pedal and it is fantastic. Both of my CM pedals are the most expensive pedals on my board but they sound great and I can rely on them not to crap-out.

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    (7 of 8 customers found this review helpful)


    Does what it does very well

    By Stringbender-D3SRs

    from Santa Rosa, CA

    Comments about Carl Martin Route Box Double A/B Footswitch:

    Just received the Carl Martin Route Box from Musician's Friend - very prompt delivery. I play a Les Paul with a Marshall and a B-Band-equipped Martin acoustic with a Fender Acoustasonic in a blues band. I wanted to streamline my pedal board so one Boss TU-2 tuner could service both axes, and simplify mid-set guitar/amp swaps. I wasn't sure how I was going to make it all work until I discovered this pedal, which seemed custom-designed for my needs. The only online review I could find complained that the unit arrived with one channel malfunctioning, but I know Carl Martin makes very high quality gear so I went ahead and ordered with my fingers crossed. There was no need to worry - my unit works perfectly - just as advertised. It's built like a tank, is extremely quiet, doesn't affect my tone at all, and switches silently between guitars and amps. The different color LEDs for the two different channels is a nice touch. My only complaint is the slightly high price for the unit, but I would rather pay a little more for a solid, reliable piece of gear than save a few bucks and wind up with a paperweight. I am very satisfied with this unit.

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