MP-204D Stereo Audio Monitor Panel
MP-204D Manual
The MP-204D is a 2 rack unit sapce audio monitoring panel, featuring 2 stereo analog inputs, 2 digital
inputs, stereo amplifier, speakers, and level metering.
The audio inputs consist of two balanced stereo analog channels on XLR connectors, and two digital audio
channels, each with XLR (AES3) and BNC (AES3-ID) connectors. Input selections are made either using the
front panel switches, or remotely (via) contact closures, or RS-422 serial commands).
The selected audio channel is routed to the balanced XLR audio outputs, the front panel meters, the
internal speakers and/or the headphone jack. The meter zero reference for each analog input is
assignable to -10, 0, +4 or +8 dB. Four front panel Mode switches permit monitoring in stereo, left
channel only, right channel only, or mono sum (L+R). Mode selections may also be made remotely.
VU display has an 11 LED per channel display.
MP-204D Specifications
| Power Requirements | 115 VAC, 60 Hz or 230 VAC, 50 Hz, 12 W |
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Analog Audio Inputs
| Input Impedance | 40 kohms balanced, 20 Kohms unbalanced |
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| Input Signal Level | -10, 0, +4, or +8 dBu (front panel selected) |
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| Maximum Input Level | +24 dBu, front panel CLIP indicator at +21 dBu |
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| Input Connectors | XLR-3F and 1/4"TRS, x 4 |
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| Common Mode Rejection | -60 dB typical @ 60 Hz |
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Analog Audio Outputs
| Output Impedance | 66 ohms balanced |
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| Output Signal Level | +0 dBu nominal, +24 dBu maximum |
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| Output Connectors | XLR-3M, x 2 |
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Digital Audio Inputs
| AES3, AES3-ID | Switch selectable for each input, rear panel |
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| Input Impedance | 110 ohms, transformer isolated (AES3), 75 Ohms (AES3-ID) |
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| Input Connectors Connectors | XLR-3F, x2(AES3), BNC Panel Mounted Female, x2 (AES3-ID) |
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Amplifier, Speakers
| Power Output | 4 Watts RMS per channel into 8 Ohms |
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| Frequency Response | 20 Hz ro 20 kHz +/- 1 dB |
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| THD + Noise | 0.1% or less, full bandwidth |
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| Hum and Noise | -70 dBu |
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| Standard Speaker | 3 x 5 inch oval, 4 Watts @ 8 Ohms |
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| Magnetically Shielded Speaker | 3 x 5 inch oval, 4 Watts @ 8 Ohms |
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Remote Control
| Parallel Remote | DB-9F; Parallel Remote (pull down to ground) |
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| Serial Remote | DB-9F; Serial RS-422 |
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Physical Dimensions (Inches)
| MP-204D | 19 W x 3.5 H x 4.5 D, EIA rack mounting |
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