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Extension Amplifier 240W/480W HBA-3240E/3480E 


The All in One BGM & Public Address System Extension Amplifier is the extension unit of HBA-3240A. It is an economical solution for middle to large installations including buffets, restaurants, schools, retirement villages, small shopping centres, fitness centers, pool & aquatic centers etc. Offering outstanding performance and featuring BGM input. For ease of use, the unit has address function. There are RCA inputs and outputs. Five zones may be selected on or off via the front panel switches and zone volume can be adjusted independently. Output level is monitored via the LED VU meter. It is suitable for 100V speakers.


  • 240W rated power
  • 1* Auxiliary Input
  • 1* Auxiliary output
  • 1 * RJ45 Control Input
  • 1 * RJ45 Control Output
  • Address function
  • 5 Output Zones
  • Zone Individual Volume Control
  • Master Volume Control
  • 100V Outputs
  • LED VU meter
  • Connects with Main Amplifier HBA-3240A and extends up to 20 zones
Model HBA-3240E HBA-3480E (coming soon)
Weight 16KG 17.9KG
Dimensions 405mm*430mm*100mm 405mm*430mm*100mm
Rated Power 240 W 480 W
Protection 5A ac fuse 10A ac fuse
Power Supply 230Vac ±10%, 50/60 Hz  
Distortion < 1% @ rated Outputs, 1kHz
Frequency Response 50 Hz – 20 kHz (+1/-3 dB @ -10 dB ref. rated Outputs)
Input RCA stereo socket bridged mono; Sensitivity: 775 mV; Impedance: 10K Ohm; S/N: >75dB.
Control RJ45
Communication RS485, 9600bps
Speaker Outputs Screw terminals, 70V/100V; 4-16ohm
Control BGM Vol, Zone Selector, Zone Vol, LED Contrast and ON/OFF Switch
Indicators VU-meter ( LEDs for -10,-5,0,3 and 6dB)
Relative Humidity < 95%
Operating Temperature Range -10°C to +45°C

Extension Amplifier HBA-3480E
Extension Amplifier HBA-3480E-back