• High efficiency DPT Technology
  • Premium heavy duty Toroidal Transformer
  • Highly sensitive CMRR balanced input stage
  • Ultra low-load output capacity
  • Channel independent power, Signal and clip LEDs

No. of Channels 2
Output Power (per channel) 2 X 400 Watts @ 16Ω


2 X 800 Watts @ 8Ω

2 X 1300 Watts @ 4Ω

1 X 2500 Watts @ 8Ω bridge mode

1 X 3500 Watts @ 4Ω bridge mode

Frequency Response 20Hz – 20kHz, +0/-0.5dB
Total Harmonic Distortion + Noise <0.1%
Signal to Noise Ratio 110dB
Damping factor >300
Crosstalk <-60dB
Slew Rate >10V/us
Input Sensitivity 0.7V, 1.4V
Input Impedance 20kΩ, balanced
Voltage Gain 38dB at 0.7V Sensitivity
Cooling Air flow from front to rear
Protection Fuseless short circuit protection, ultrasonic and RF protection, thermal protection
Load Protection Turn on delay, DC fault protection, Ultrasonic limiting
Power requirement 220V AC 50Hz, ±10%






Balanced inputs XLR-F

NL4 Speakon

Front panel Power switch, Level control, Power indicator, Signal indicator, Clip, Protection
Rear panel Stereo/Bridge switches, Sensitivity selection switch, VCL selection switch
Product dimensions

88 mm X 482 X 522 mm (3.5” x 19” x 20.6”)

Net Weight 32 kg (70 lb)
Packed Weight 35 kg (77 lb)


Tags: ProLine , Amplifiers , DPT , AD21300