Monoprice 118800 3-Channel 60W 70/100V Mixer Amplifier

The Monoprice 118800 is a 3-channel, 60-watt mixer amplifier built for commercial audio installations where background music, paging, and simple multi-source mixing are needed in a single rack-friendly unit. It accepts up to three microphone signals through unbalanced 1/4" jacks, with two of those channels switchable to auxiliary inputs — one RCA and one 1/4" — allowing background music sources to share the mixer. Each channel has its own volume control, and a master section provides bass and treble tone adjustment. The MIC 1 priority feature automatically reduces other audio when the primary microphone is active, making it well suited for announcement and paging applications.

On the output side, the amplifier offers both constant resistance taps at 4 ohms and 8 ohms and constant voltage taps at 70 volts and 100 volts. This dual-mode output makes it compatible with conventional speaker wiring as well as distributed 70V/100V ceiling speaker systems common in commercial buildings. The universal 100–240 VAC power input means the unit can be deployed internationally. At 7.7 pounds and 14.1 x 10.9 x 6 inches, it is compact enough to mount in a utility closet or equipment shelf without taking up significant space.