The Crestron® MP-AMP40 series offers a choice of 70V or 100V audio amplifiers, each designed to provide a convenient, low-cost amplifier solution for a variety of applications. These amplifiers are ENERGY STAR® qualified to enable organizations to fulfill their green initiatives without compromising on audio performance.[1] Each model is equipped for shelf or surface-mounting to enable installation virtually anywhere without requiring an equipment rack. Each model meets the requirements of UL 2043 for installation in an environmental air-handling (plenum) space, such as above a suspended ceiling[2].
Two models are offered. The MP-AMP40-70V has a 70 Volt output, and the MP-AMP40-100V has a 100 Volt output. High-efficiency Class D circuitry delivers 40 Watts to drive a distributed speaker system in a meeting room, classroom, or any other space. The output is transformer isolated to handle long and complex wire runs.
Refined, reliable operation is ensured thanks to pop-free turn-on circuitry and electronic short-circuit and overload protection. An energy-saving design achieves optimum efficiency under load, and the amplifier powers down automatically when no input signal is detected for more than 5 minutes, reducing overall power consumption and heat as part of a green system design. The amplifier quickly powers back on the instant an input signal is detected. Its extruded aluminum housing is both attractive and effective at dissipating heat, affording a silent running design without cooling fans.
Installation and setup is simple. A detachable output connector facilitates the termination of speaker wiring up to 12 gauge. Balanced and unbalanced inputs accommodate either a mono or stereo line-level source[3], allowing for direct connection to the output of a video projector or display, audio processor, mixer, or AV switcher. Rotary controls provide for adjusting the overall output volume, as well as bass and treble.
| Audio | ||
| Input Volume Range | -60dB to +15dB | |
| Bass Gain Range | ±10dB @ 100Hz | |
| Treble Gain Range | ±12dB @ 10kHz | |
| Frequency Response | 80Hz to 20kHz ±2.5dB | |
| S/N Ratio | 75dB 80Hz to 20kHz A-weighted | |
| THD+N | 0.5% @ 1kHz | |
| Output Power (MP-AMP40-70V) | 40 Watts at 70 Volts (Transformer isolated) | |
| Output Power (MP-AMP40-100V) | 40 Watts at 100 Volts (Transformer isolated) | |
| Amplifier Protection | Electronic short-circuit and overload protection | |
| Input Detection Threshold | 30mV RMS @ 1kHz | |
| Connectors | ||
| AUDIO IN, L/MONO & R (unbalanced) | (2) RCA female; Unbalanced stereo or mono line-level audio input[3]; Maximum Input Level: 2 Vrms mono, 1 Vrms stereo; Input Impedance: 15k Ohms; 3 ft (0.9 m) stereo RCA-RCA cable included |
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| AUDIO IN, L/MONO & R (balanced) | (1) 5-pin 3.5mm detachable terminal strip; Balanced/unbalanced stereo or mono line-level audio input[3]; Maximum Input Level: 2 Vrms mono, 1 Vrms stereo; Input Impedance: 15k Ohms |
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| AUDIO OUT 70V (MP-AMP40-70V only) | (1) 2-pin 5mm detachable terminal block; 70V speaker-level audio output; Wire Size: Connector accepts 12 AWG maximum; Output Power: 40 Watts at 70 Volts |
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| AUDIO OUT 100V (MP-AMP40-100V only) | (1) 2-pin 5mm detachable terminal block; 100V speaker-level audio output; Wire Size: Connector accepts 12 AWG maximum; Output Power: 40 Watts at 100 Volts |
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| PWR 24VDC 2.0A | (1) 2.1 x 5.5 mm DC power connector; 24 Volt DC power input (power pack included) |
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| G | (1) 6-32 screw, chassis ground lug | |
| Controls & Indicators | ||
| PWR | (1) green LED, indicates operating power supplied from external power pack | |
| BASS | Rotary low frequency boost/cut adjustment, flat at center detent | |
| TREBLE | Rotary high frequency boost/cut adjustment, flat at center detent | |
| VOL | Rotary input level adjustment | |
| Power Requirements | ||
| Power Pack | 2.0 Amps @ 24 Volts DC; 100-240 Volts AC, 50/60 Hz power pack included[1] |
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| Power Consumption | 14 Watts at 1/8th output power; 6.2 Watts idle; 750 mW standby |
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| Environmental | ||
| Temperature | 41° to 122°F (5° to 50°C) | |
| Humidity | 10% to 90% RH (non-condensing) | |
| Heat Dissipation | 26 BTU/Hr at 1/8th output power | |
| Enclosure | ||
| Chassis | Aluminum w/polycarbonate label overlay, vented rear, meets the requirements of UL 2043 for installation in an environmental air-handling (plenum) space[2] | |
| Faceplate | Plastic w/polycarbonate label overlay | |
| Mounting | Freestanding or surface mount (adhesive feet and mounting brackets included) | |
| Dimensions | ||
| Height | 2.38 in (61 mm) with feet; 2.45 in (62 mm) with bracket |
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| Width | 8.12 in (207 mm); 9.40 (239 mm) with bracket |
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| Depth | 5.87 in (149 mm) | |
| Weight | ||
| 3.4 lb (1.6 kg) | ||
