Description

BiAmp MA120 120 Watts Class D Single Channel Mixing Power Amplifier Rack Mount

The MA120 is a 120W single channel mixing amplifier. Designed for ease of use, the front panel of the

MA120 includes volume and microphone controls, providing immediate visual feedback regarding system

operation. The MA120 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 MA120 ideal for a variety of professional audio applications.

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

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): 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)

ARCHITECTS & ENGINEERS SPECIFICATION

The mixing amplifier shall provide 1 emergency input that shall be triggered by either contact closure or VOX level. The emergency input shall support user adjustable volume and VOX activation level via the rear panel. The mixing amplifier shall provide 1 paging input connection for receiving microphone or line level analog audio signals via Euroblock connectors. The paging input shall support volume control, user adjustable gain, and chime level via the rear panel. The mixing amplifier shall provide 2 balanced input connections for receiving microphone or line level analog audio signals via either Euroblock or RCA connectors. The balanced input shall support user adjustable gain and EQ via the rear panel. The mixing amplifier shall provide 4 unbalanced input connections for

receiving line level analog audio signals via RCA connectors. Each unbalanced input shall support user adjustable gain via the rear panel. The mixing amplifier shall support 4 priority levels of audio transmission. The mixing amplifier shall provide output connection for the transmission of line level analog audio signals via Euroblock connector. The output channel shall support user adjustable EQ via the rear panel. The mixing amplifier shall include a switchable standby mode via the rear panel that reduces power consumption to 0.5 watts. The standby mode shall activate automatically after 10 minutes if no signal is detected. The standby mode shall be activated/deactivated manually by toggling the standby mode button on the front panel. The mixing amplifier shall be CE marked, UL listed, and shall be compliant with the RoHS directive. Warranty shall be five years. The mixing amplifier shall be Biamp® MA120.

Echotone Music LLC is an experienced E-commerce Audio Visual Equipment dealer since 1998. We take pride in selling Pro Audio gear for musicians, sound engineers, production companies and broadcast applications.

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