Apart MA240

The MA240 is a 240W single channel mixing amplifier. Designed for ease of use, the front panel of the MA240 includes volume and microphone controls, providing immediate visual feedback regarding system operation. The MA240 is equipped with four priority levels for audio routing: one emergency input, one paging input, two mic/line inputs, and four stereo line, mono summed inputs. It’s audio performance, easeof-use, and versatile feature set makes the MA240 ideal for a variety of professional audio applications.

The revolutionary 19” MA240 mixing amplifier offers 240 watts in 70- or 100-volt mode and comes with 2 mic/line input and 4 stereo line, mono summed inputs. On the rear you can find smart left-to-right 4 level priority system for audio routing, an emergency input, paging mic with chime and a 24VDC override output.

FEATURES
• Single channel; 240 watts of continuous power
• Supports 4Ω and 70V/100V outputs
• Class D amplifier topology
• Intuitive front and rear panels
• Four priority levels for audio routing
• 24V priority output overrides local volume controls
• Dedicated emergency input with mute all switch
• Paging mic input with contact closure and chime
• Two mic/line level inputs with 48V phantom power
• Four stereo inputs
• Fanless operation
• Internal universal power supply
• Auto standby mode
• Rack mountable (2RU)
• CE marked, UL listed, and RoHS compliant
• Covered by Biamp Systems’ five-year warranty

MA240 SPECIFICATIONS

INPUTS
Number of Inputs
Emergency (line level with contact): 1
Paging Mic (mic level with contact): 1
Mic/Line (balanced): 2
Stereo Line (unbalanced): 4
Input Priority Levels: 4
Priority Input Contact: Yes
Chime: Yes
Tone Control: Yes
Wall Panel Controls: Yes
VOX Mute: Yes
Music Level Control: Yes
Front Panel Indicators: Signal present, clipping, overload condition, emergency mode active, paging active, VOX active

Emergency Input
Nominal Input Sensitivity: 0 dBV (1 Vrms)
THD+N (Pre-Out, @ -6dB): < 0.5%
Frequency Response (-3dB): 45 Hz – 20 kHz
Input Impedance: 5 kΩ

Paging Mic
Nominal Input Sensitivity (Bal. Mic): -45 dBV (5.6 mVrms)
THD+N (Pre-Out, @ -6dB): < 0.4%
Frequency Response (-3dB):
Balanced Mic: 165 Hz – 20 kHz
Unbalanced, Balanced Line: 20 Hz – 20 kHz
Gain: -15 to +15 dB
Chime Length: 2 sec
Input Impedance: 2 kΩ

Mic A, B
Nominal Input Sensitivity:
Balanced Mic: -45 dBV (5.6 mVrms)
Balanced Line: -12 dBV (250 mVrms)
Unbalanced Line: -12 dBV (250 mVrms)
THD+N (Pre-Out, @ -6dB): < 0.2%
Frequency Response (-3dB):
Balanced Mic: 165 Hz – 20 kHz
Unbalanced, Balanced Line: 20 Hz – 20 kHz
Phantom Power (balanced only): +48VDC (7mA/input)
VOX Attenuation (Mic A, B, Inputs 1-4): 30 dB
Input Impedance: 2 kΩ

Inputs 1-4
Nominal Input Sensitivity (Unbal. Line): -12 dBV (250 mVrms)
THD+N (Pre-Out, @ -6dB): < 0.1%
Frequency Response (-3dB): 20 Hz – 20 kHz
Input Impedance: 10 kΩ

OUTPUTS
Number of Output Channels: 1
Output Connectors: 4-pin, 0.3 inch (7.6 mm) Euroblock
70V/100V Mode: Yes
Low Impedance Mode: Yes
Priority Output Contact: Yes
Minimum Operational Load: 4Ω

Amplifier
Topology: Class D
RMS Output Power (1% THD): 240 W
Dynamic Power: 280 W
SNR (1% THD): > 90 dB
THD+N (@ -6dB): < 0.5%
Protection: Temperature, overcurrent,
overvoltage, undervoltage

Priority Output
Voltage: 24V
Max Current: 0.5A

Pre-Out
Nominal Output Level: 0 dBV

Standby
Wakeup Sensitivity:
Inputs 1-4: -43 dBV (6 mVrms ± 10%)
Mic A, B (RCA): -50 dBV (5 mVrms ± 10%)
Mic A, B (Balanced, VOX off): -74 dBV (0.3 mVrms ± 10%)
Time to Auto Standby: 10 min

Power Consumption (100-240VAC 50/60Hz)
Normal Operation: 320W
Idle Operation: 15W
Standby Mode: 0.5W
Cooling: Convection

Overall Dimensions
Height (without feet): 3.5 inches (89 mm)
Width: 19 inches (483 mm)
Depth: 11.8 inches (300 mm)
Weight: 13.2 lbs (6.0 kg)

Environmental
Ambient Operating
Temperature Range: 32 - 95° F (0 – 35° C)
Humidity: 0-95% relative humidity (non-condensing)
Altitude: 0-6,600 ft (0-2000m) MSL

Compliance
FCC Part 15B (USA)
UL listed (USA and Canada)
CE Marked (Europe)
RoHS Directive (Europe)