How to connect two guitar amplifiers

Written by ryan vansickle
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Guitarists can search for years to find the electric sound they're looking for. Countless variables influence how you sound, including what your guitar is built from, the kind of amps you use, and even the cables you connect it all with. Using more than one amplifier can open up countless possibilities. Even if you've found your perfect sound, you may want extra volume by using two of the same amp. In either of these cases, you'll want to connect two amps together -- fortunately, this is a simple matter.

Skill level:

Things you need

  • Electric guitar
  • Two amplifiers
  • Three instrument cables
  • ¼-inch male to ¼-inch female Y-cable
  • ¼-inch male to male cable adaptor

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  1. 1

    Check your guitar set-up to see what kind of cables and adaptors you need to purchase. Are you using any effects pedals or other audio devices between your guitar and amps?

  2. 2

    Purchase a Y-cable with one ¼-inch male end and two ¼-inch female ends. If your guitar set-up does not have any pedals or audio devices between your guitar and amps, also purchase an adaptor that will allow you to connect two ¼-inch male cable ends together.

  3. 3

    Make sure you have three instrument cables. If you do not have enough, purchase extra ones.

  4. 4

    Plug an instrument cable into each amplifier.

  5. 5

    Connect the instrument cables from each amp into a female end of the Y-cable.

  6. 6

    Connect your guitar to the Y-cable. If you have pedals, connect the Y-cable into the last one in your signal chain; if you do not have any pedals, use the extra adaptor you purchased to connect the guitar cable to the Y-connector.

  7. 7

    Connect your guitar to the guitar cable.

  8. 8

    Turn on your amps and test your connection -- you should hear sound from both amplifiers.

Tips and warnings

  • You can purchase Y-cables and adaptors online or at a local electronics store.
  • Make sure that you connect all cables and adaptors before turning on your amps or you may damage your speakers.

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