Only if you want to change channel or effect while playing. On a practice amp, reaching for a button between songs is entirely workable, and many small amps have no footswitch socket at all.
When it matters
Playing songs end to end, where a clean verse and a dirty chorus have to change without a hand leaving the guitar.
When it does not
Practice, learning and recording, where stopping is free.
What to check
Whether the amplifier has a socket at all, and whether the switch is a generic jack type or a proprietary one. That decides whether it costs a few dollars or several times that.
Check your own manual before you plug anything in. Voltage, polarity and current draw differ from model to model, and the manufacturer’s figures take precedence over anything written here. A supply of the wrong polarity can damage a pedal in seconds, phantom power is safe for most microphones but not for every one, and the required voltage is printed next to the socket or stated in the manual — not inferred from a connector that happens to fit.
The questions players ask
Is the footswitch included?
Rarely at this level. Where an amplifier supports one, it is usually a separate purchase and often brand-specific.
What does it usually switch?
Channel, and sometimes an effect on or off. More elaborate switching belongs to larger amplifiers and modeling units.
Last reviewed 2026-08-19