Biamp MA120 70V/100V 120W 1-Channel Class D Mixing Power Amplifier

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Biamp MA120 120W 70V/100V Single-Channel Class D Mixing Power Amplifier

Description

Details

Biamp MA120 120W 1-Channel Mixing Amplifier

The MA120 is a powerful 120-watt single-channel mixing amplifier built for ease of use and reliable performance in commercial audio applications. Its intuitive front panel provides quick access to volume and microphone controls, ensuring straightforward operation.

Equipped with four priority levels, the MA120 supports emergency, paging, mic/line, and stereo inputs, making it ideal for environments requiring flexible audio routing. A dedicated emergency input with mute-all function, paging mic with contact closure and chime, and a 24V priority output that overrides local volume controls provide full system integration and control.

Featuring Class D amplification, fanless operation, and a universal power supply, the MA120 is an energy-efficient, quiet, and installation-friendly solution. With rack-mount capability (2RU), it fits seamlessly into professional setups. Certified to CE, UL, and RoHS standards, and backed by Biamp's 5-year warranty, the MA120 offers dependable long-term performance.

Features

Features

120W single-channel Class D amplifier
Supports 4Ω, 70V, and 100V outputs
Four audio routing priority levels (emergency, paging, mic/line, stereo inputs)
Dedicated emergency input with mute-all switch
Paging mic input with contact closure and chime
Two mic/line inputs with 48V phantom power
Four stereo inputs (mono summed)
Fanless design for silent operation
Auto standby mode for energy efficiency
Rack-mountable (2RU) with universal power supply
CE marked, UL listed, and RoHS compliant
5-year warranty

Specification

Inputs	1 × Emergency (line level with contact) 1 × Paging Mic (mic level with contact) 2 × Mic/Line (balanced) 4 × Stereo Line (unbalanced, mono summed)
Outputs	1-channel Output connectors: 4-pin Euroblock (7.6 mm) Supports 70V/100V & low impedance (4Ω min load) Pre-out level: 0 dBV
Front Panel Indicators	Signal present, clipping, overload, emergency active, paging active, VOX active
Mic/Line Input	Sensitivity: Mic -45 dBV (5.6 mVrms), Line -12 dBV (250 mVrms) Gain: -15 to +15 dB Frequency Response: Mic 165 Hz–20 kHz, Line 20 Hz–20 kHz THD+N: < 0.2% Phantom Power: +48VDC (7 mA/input)
Amplifier	Class D topology RMS Power: 120W (1% THD) Dynamic Power: 150W SNR: > 90 dB THD+N: < 0.5%
Protection	Temperature, overcurrent, over/undervoltage
Design	Fanless convection cooling Rack mountable (2RU)
Standby / Power	Auto standby (10 min) 160W normal, 12.5W idle, 0.5W standby
Compliance	FCC Part 15B (USA) UL listed (USA & Canada) CE marked (Europe) RoHS compliant
Dimensions (H x W x D)	3.5" (89 mm) x 19" (483 mm) x 11.8" (300 mm)
Weight	11 lbs (5 kg)
Shipping Weight	16 lbs (7.26 kg)

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