Overview
Each RM-MP12 input may be individually calibrated for unbalanced consumer, balanced professional, 8 Ohm speaker line or constant voltage speaker lines. There is a variable intensity LED on the front panel to show audio presence for each input. If the RM-MP12 is set to the interlocking operating mode, front-panel pushbuttons select one of the twelve inputs to feed the calibrated meter, front-panel speaker (or external speaker if connected) and headphone jack. In the mixing mode, the buttons allow the use to mix multiple sources. The front-panel volume knob controls the audio level of the front-panel headphone jack, front-panel speaker, external speaker output and variable line level (+4 dBu) rear-panel output. A separate fixed line-level output is provided.
Features
- Twelve Individually Selectable Audio Inputs
- Selectable Operating MODE Provides Interlocking Source Selection or Mixing Multiple Sources
- LED Above Each Button to Show Selected Source
- VU Ballistic LED Above the Button for Each Input
- Calibrated Front-Panel Meter Display
- Front-Panel Speaker and Headphone Jack
- Front-Panel VCA Control for Headphone and Speaker Output Levels
- Internal 4.5 W RMS Power Amplifier and Speaker
- Audio Inputs and Outputs on Detachable Terminal Blocks
Specifications
| Inputs (12) | +4 dBu, 25 V, 70.7 V, 100 V (set by rear-panel switches) |
| Input Level | -11 dBu to +9 dBu (+4 dBu input) 25 V, 70.7 V, 100 V (calibrated with gain trim set fully counter-clockwise) |
| Headroom | > 18 dB (above calibrated input level) |
| Gain | 0 dB to 20 dB (Adjustable for speaker-level input, 25-turn trim potentiometer) -5 dB to 15 dB (+4 dBu input) |
| Frequency Response | 10 Hz to 20 kHz (±0.25 dB) |
| THD+N | < 0.010% (20 Hz to 20 kHz) |
| Intermodulation Distortion | < 0.025% (20 Hz to 20 kHz) |
| Channel to Channel Crosstalk | < -80 dB (10Hz to 20 kHz) |
| Residual Noise | < -80 dB (Channel ON; referred to +4 dBu) |
| OFF Attenuation | > 80 dB (10 Hz to 20 kHz) |
| Indicators per Channel (2) | Red channel active LED above button; Variable intensity audio level LED for each input (minimum intensity at -15 dB, maximum intensity at 0 dB) |
| CMRR | > 75 dB (50 to 120 Hz) |
| Outputs (4) | 150 Ohms, +4 dBu fixed level (balanced or unbalanced via plug-in terminal block) 150 Ohms, +4 dBu variable level (balanced, controlled by front-panel volume knob) 4.5 W RMS external speaker connection (use of external speaker disconnects internal speaker) 100 mW ¼-inch stereo headphone jack |
| Ambient Operating Environment | 0° C to 40° C |
| Power Requirement | GROUND-REFERENCED, 24 Vdc @ 700 mA |
| Mounting | Standard 19” Rack-mount; 1 Rack Unit (RU) |
| Dimensions | Height: 1.75 in 4.40 cm; Depth: 5.35 in 13.60 cm |
| Package Type | Cardboard Box |
| Package Dimensions | 20.5 x 6.75 x 2.25 in. |
| Shipping Weight | 4.55 lbs. |
| WEEE weight | 3.965 lbs. |
| Tariff code | 8518.40.2000 |