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Beta3 UA660 2 Channel Professional Power Amplifier 2x330W/8ohm - Macsound Electronics & Theatrical Supplies

Beta3 UA660 2 Channel Professional Power Amplifier 2x330W/8ohm

  • $999.00

The UA Series 2U professional amplifiers have been engineered for reliability where full power is required for extended times in fixed installations or portable applications.. The UA Series delivers extraordinary performance at unmatched value.


  • Housed in a rugged, all-steel 2U chassis
  • Rear panel selection switch for stereo, parallel and bridged modes
  • Rear panel low-cut filter, ground lift and limiter switches
  • Operates within 8Ω and 4Ω loads
  • Innovative heatsink with front to back air flow for efficient cooling
  • Variable fan speed is automatically adjusted by temperature
  • Electronically balanced XLR inputs
  • Touch proof binding post and speakon outputs
  • Precision indented level controls
  • Front panel power switch
  • Protect, peak and signal LED indicators for each channel
  • Amplifier protection includes short circuit, excessive temperature and DC on outputs

Chassis Dimensions


8Ω Stereo RMS Power: 2x330W
4Ω Stereo RMS Power: 2x500W
8Ω Bridge Mono RMS Power: 1000W
Frequency Response: 20Hz-20kHz (±.25dB)
Protection: DC, Short Circuit, High Temp, Current Inrush, Input Overload, Output, Soft Start
THD+N (rated power, 4O/1kHz): <0.5%
Damping Factor (100Hz at 8Ω):  >800 
Standard Input Sensitivity (rated power at 8Ω): 1V
Input Impedance (balanced/unbalanced): 20kO/10kO
Crosstalk: >75dB
Input Connectors (per channel): XLR (female) & TRS
Output Connectors (per channel): Speakon (2-way) & Binding Posts
Power Supply (factory configured): 220V-230V 50Hz-60Hz,300VA
Cooling: Two Speed DC Fan (flow front to rear)
Controls: Front Panel: 2 Attenuators, Power Switch Rear Panel: Ground Lift, Mode & Filter
LED Indicators (per channel): Clip, Signal Level, Power
Construction: Steel Chassis, Solid Front Panel
Net Weight: 15.0kg
Gross Weight: 17.0kg
Dimensions (W x D x H): 482 x 375 x 88mm (2RU)
Packaging Dimensions (W x D x H): 630 x 444 x 128mm
Warranty: 3 years