Biamp MA120 (Apart)

The revolutionary MA120 mixing amplifier offers the enduser an unseen cutting-edge design and ease-of-use. The ground-breaking intuitive front panel is clear and easy to use without any unnecessary bells and whistles. The volume control rotary on the front panel is prominent, illuminated, bigger and put in the forefront while the mic volume control is smaller and recessed.

This class-d mixing power amplifier offers 120 watts in 70 or 100 volt mode and comes with three mic inputs balanced, along with four stereo line, mono summed inputs.

FEATURES
• Single channel; 120 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

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): 120 W
Dynamic Power: 150 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: 160W
Idle Operation: 12.5W
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: 11.0 lbs (5.0 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)