Boss KM-4 Instrument Mixer

KM-4 Instrument Mixer

The target audience for the KM-4 mixer was keyboard players connecting more than 2 keyboards simultaneously or guitar players using several guitars during a performance. The unit is AC powered and has a minimum of settings. There's a separate volume control for each of the 4 channels as well as a master volume and that's it.

Specifications
  • Power Consumption: 0.7W

  • Input Sensitivity: 20mV

  • Output Level -12dB (200mV)

  • S/N Ratio: Over 85dB

  • Dimensions: 9.4"(W) x 3.0"(H) x 5.1"(D)

  • Weight: 3.7lbs.


    • The KM-4 was produced between 1977 and 1981