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The MPM1 from Whirlwind/U.S. Audio is a high-quality rack mount music and paging mixer that's great for small offices, retail spaces, restaurants, and more. The slim, 1RU unit has three sets of stereo RCA inputs for connecting CD players, cassette decks, or similar audio devices. An XLR connector and pair of 1/4" inputs are also provided for connecting a microphone for paging. The system has automatic ducking, so as soon as a mic signal is detected, the volume level of all other audio sources is lowered to give the microphone top priority.
XLR and RCA jacks are provided for signal output to an amplifier. A remote control jack is also available so you can connect the included MPM1RV wall remote. Front-panel controls include input selector switches, master and individual volume control knobs, mic and line volume control knobs, and four tone control knobs. A stereo/mono output selector switch is provided, along with a ground-lift switch, which may help reduce hum caused by ground loops.
Slim, 1RU housing with removable rack ears
Three sets of stereo RCA inputs for connecting CD players, tape decks, and more
XLR and 1/4" inputs for connection a microphone, telephone, or juke box
A set of stereo RCA buss input jacks insert an audio source directly on the sum buss of the mixer
Priority ducking automatically lowers music when a mic signal is detected to make sure an announcement is heard. A ducking level selector switch is provided
RCA and XLR outputs can be selected to send out a mono or stereo signal
A remote connector is supplied to connect the included wall remote
A full host of front-panel controls include master and individual volume controls, input selector switches, and system tone controls
A ground-lift switch helps to reduce hum caused by ground loops
RCA In/Out: 0.06% @ 1kHz, Unity Gain
Mic In/RCA Out: 0.05% @ 1Khz, 40dB Gain
Priority Mic Threshold: -40dB
Priority Line Threshold: -20dB
Mic Priority: 5 sec
Line Priority: 3 sec (Normal), 30 sec (Slow)
Common Mode Rejection Ratio
Mic: >50dB @ 50Hz
Signal to Noise Ratio
RCA In/Out: 76dB
3 x Pairs of Stereo RCA Phono Inputs
1 x XLR Mic Priority Input
1 x Pair of 1/4" Line Priority Inputs
1 x Remote Input
1 x Pair of RCA Buss Inputs
1 x Pair of RCA Phono Line Outputs
1 x Pair of XLR Line Outputs
1 x Power Switch
4 x Tone Control Knobs (Low, Low Mid, High Mid, High)
1 x Master Volume Control
4 x Input Selector Switches (1, 2, 3, Off)
3 x Individual Input Volume Control Knobs
2 x Priority Volume Control Knobs (Mic, Line)
1 x Ground-Lift Switch
1 x Stereo/Mono Output Selector Switch
1 x Ducking Level Selector Switch