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Biamp MA240 240W 70V/100V Single-Channel Class D Mixing Power Amplifier

Part #:
920-00660-00001
Model #:
MA240
Availability:

Special Order (Return conditions apply)

Please be aware that global supply shortages outside our control may interfere with our normal delivery times and product availability. For more information, email sales@proacoustics.com or call us at 888-256-4112.
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The Biamp MA240 is a 240W single-channel Class D mixing amplifier with 4Ω and 70V/100V support, four priority input levels, and flexible mic/line options, making it ideal for commercial audio, paging, and background music.

Description

Biamp MA240 240W 1-Channel Mixing Amplifier

The MA240 is a powerful 240W single-channel mixing amplifier designed for commercial installations that require reliable performance and simple operation. Featuring intuitive front-panel controls, the MA240 offers immediate access to volume and microphone levels, ensuring ease of use for any operator.

With four priority levels for audio routing, including a dedicated emergency input, paging mic with contact closure and chime, two mic/line inputs, and four stereo line inputs, the MA240 delivers exceptional flexibility for paging, announcements, and background music applications.

Its efficient Class D amplifier topology ensures clean, high output performance while minimizing power consumption. Fanless convection cooling allows for quiet operation and long-term reliability in diverse environments such as offices, retail spaces, hospitality venues, and educational facilities.

Designed with system integration in mind, the MA240 includes a 24V priority output to override local volume controls, an auto standby mode for energy savings, and an internal universal power supply for global compatibility. Housed in a 2RU rack-mountable chassis, the MA240 meets rigorous compliance standards (FCC, UL, CE, RoHS) and is backed by a five-year warranty.

Features

  • 240W RMS single-channel output
  • Supports both 4Ω low impedance and 70V/100V distributed systems
  • Four input priority levels (Emergency, Paging, Mic/Line, Stereo Line)
  • 2 x Mic/Line inputs with 48V phantom power
  • 4 x Stereo line inputs (summed to mono)
  • Dedicated emergency input with mute-all function
  • Paging mic input with contact closure and chime
  • 24V priority output overrides local controls
  • Class D amplifier topology for efficient, reliable operation
  • Fanless convection cooling for silent performance
  • Auto standby mode for energy efficiency
  • Rack mountable (2RU)
  • 5-year warranty

Specifications

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: 240W (1% THD)
Dynamic Power: 280W
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)
320W normal, 15W 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 13.2 lbs (6.0 kg)
Shipping Weight 18.2 lbs (8.26 kg)

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