Boss PSM-5 Power Supply & Master Switch Pedal (1984) Pedal Steel Strings Most notably the bigger headstock

Most notably the bigger headstock and guitar style machine heads

TrebleOutput Jack: Balanced XLR & 1/4" Outputs

The AC20 Deluxe was created to solve modern guitar player amplifier issues with the ability to stay true to vintage tonality

Cobalt is difficult to procure these days

plus a looper with unlimited overdub capability and external control support

Boss PSM-5 Power Supply & Master Switch Pedal (1984) Pedal Steel Strings Most notably the bigger headstockThis pedal is in good condition with minor cosmetic wear. It has been fully tested and is 100% working well with no issues. The original box is not included. This is the writeup on this pedal from the 1984 Boss pedal catalog "The PSM 5 is a regulated power supply, capable of powering up to five 9v BOSS effects, (or other effects of a similar design). The PSM05 operates on AC power and comes with a PSA Series Adapter, which plugs into any conventional