BOSS FA-1 FET Amplifier Japan Pocket Series (Pre-Loved)

The BOSS FA-1 FET Amplifier is a compact, vintage preamp pedal originally released in 1980 as part of BOSS’s Pocket Series, designed for belt-clip use. Despite its understated looks, it has earned cult status over the years—largely due to its use by The Edge of U2, who famously incorporated it into his signal chain for tone shaping.

• Controls:

  • Volume: Output level

  • Bass: ±10 dB boost/cut

  • Treble: ±10 dB boost/cut

  • Lo-Cut switch: Rolls off low-end frequencies

• Amplification Type: FET (Field-Effect Transistor) based preamp

• Power: 9V battery (no AC input)

• Connectivity:

  • 1/4″ input and output jacks

  • Headphone output (rare for pedals)