Technical specifications:

Continuous Avg. Power (BCD)

Watts @ 8 Ohms .......................................... 250 (x2) / 350 (x2)
Watts @ 4 Ohms .......................................... 400 (x2) / 600 (x2)
Watts @ 2 Ohms .......................................... 600 (x2) / NA
Watts Bridged ........................................... 1200 @ 4 / 8 ohms

Burst Average Power (BCD)

Watts @ 8 Ohms .......................................... 400 (x2) / 525 (x2)
Watts @ 4 Ohms .......................................... 750 (x2) / 1000 (x2)
Watts @ 2 Ohms .......................................... 1325 (x2) / NA
Watts Bridged ........................................... @ 2600 4 / 2000 @ 8
Freq. Response (+ / - 1dB )................................ 20-20kHz
Hum & Noise ............................................... -103dB
THD (1 kHz, 4 ohms )...................................... <0.004%
THD (20-20 kHz, 4 Ohms ).................................. <0.05%
Slew Rate (V / uS )........................................ 25 (50 bridged)
Damping Factor .......................................... > 600
Crosstalk (1 kHz kHz/20-20 )............................. -75/-60 DB
Input Impedance. (Bal / unbal )............................ 30/20 kOhm
Input Sensitivity (Vrms Sine )........................... 1.4 (33dB gain)
CMRR @ 60Hz (Min / Typ )................................... 48/56dB
Stereo or Mono (S / M ).................................... S / M
Turn On / Off (mw dry ).................................... <15,0.5 WPK
Current Max.Output (Rep / Contin )......................... 60/30
Power Consumption (Typ / Max )............................. 600/1440
Protective .............................................. DC, Load, Thermal
Cooling ................................................. Fan (Side> Back)
Input Connectors ........................................ XLR / 1 / 4 "Phone
Output Connectors (x2 ).................................. Binding Post
Rack Spaces ............................................. 2
Transforming ............................................. Toroidal
Weight (lbs. / kg .)....................................... 35/16
Dimensions (DWH-).................................... in. 15.8x19x3.5
Dimensions (cm.-DWH ).................................... 40.3x48.5x9

I use it for 2 years and this amp is really great!
Powerful and strong .. I used Crown amps, Yamaha, and the AP1200 really does not blush, it's good stuff! In addition, quality price ratio, say nothing. I would do without this choice hsiter