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Mixer Amplifiers

Our Pro Audio range of products are not certified for use in the fire industry.

30W 2 Input 100V Public Address Amplifier

PA-A4020B

Designed to meet the requirements of small to medium sized professional public address installations, delivering an output power of 30W RMS. Frequency response extends from 40Hz to 10kHz at a total harmonic distortion (THD) of less than 0.5%. Output is 100V line only.
Designed to meet the requirements of small to medium sized professional public address installations, delivering an output power of 30W RMS. Frequency response extends from 40Hz to 10kHz at a total harmonic distortion (THD) of less than 0.5%. Output is 100V line only.

Product Information

Designed to meet the requirements of small to medium sized professional public address installations, delivering an output power of 30W RMS. Frequency response extends from 40Hz to 10kHz at a total harmonic distortion (THD) of less than 0.5%. Output is 100V line only. This unit includes thermal overload shutdown, over current and short circuit protection. With one balanced microphone and two stereo line inputs, with recessed treble and bass controls, it’s perfect for simple installations requiring minimal inputs. VOX circuit on input 1 mutes input 2. Features variable sensitivity and time delay setting.

Key Features:

Balanced microphone input
Built in VOX muting circuit
Stereo line inputs
Bass and treble tone controls
240V AC operation
Built in short circuit protection
Thermal shutdown circuit protection

Specifications:
Power output: 30 watts RMS
Distortion: < 0.5% @ 1kHz
Output line: 100V

Signal to Noise Ratio
All volume controls min, typically 72dB below rated output.
All inputs display same S/N ratio.

Frequency Response
Mic: 52Hz - 10kHz, -3dB
Line: 40Hz - 10kHz, -3dB

Input Sensitivity
Mic input: 2.6mV balanced
Line inputs: 150mV

Controls
Volume 1: Controls mic 1 / line 1
Volume 2:. Controls line 2
Bass: ±10dB @ 100Hz
Treble: ±13dB @ 10kHz
Power: On/off switch

Output Connectors
Speakers: Screw terminals

Muting
VOX only (-79dB)

Input Connectors
Mic input: 3 pin XLR balanced
Line inputs: RCA stereo socket, bridged mono
240V AC power: IEC power connector

General
Power supply: 240V AC
Indicators: Power
Fuse protection: 1A AC, 1.5A x 2 DC internal
Size: 300W x 220D x 74H mm
Weight: ≈4.8kg
Colour: Black

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