B&K 125.7 S2 Stereo Amplifier User Manual


 
REFERENCE 125.5 S2 & REFERENCE 125.7 S2
*AV - Amplified Voltage
Power Rating: 8125.5 / 125.7
Power Rating: 4125.5 / 125.7
125 watts / 125 watts
185 watts / 185 watts
Number of Channels 5 / 7
Current (peak to peak) 30 Amps / 30 amps
Dynamic Headroom 1.2 dB / 1.2 dB
Total Harmonic Distortion (THD) 0.09 %
Signal to Noise (S/N) 95 dB
Input Impedance
33.2 k
Damping Factor (50 Hz) 180 / 180
Frequency Response 5 Hz - 45 kHz
Slew Rate
14 V /
µ
sec
Input Sensitivity RCA Unbalanced 1.0 Volt
Input Sensitivity XLR Balanced 2.0 Volts | Pin 1 = Gnd, Pin 2 = In +, Pin 3 = In -
Gain 28.3AV* or 28dB
AC Line Voltage 120 / 220 / 240 VAC (optional / switchable)
Level Controls No
Binding Post Maximum Wire Gauge 4 AWG
Balanced Inputs Yes
Control Input 5 - 24 VDC
Control Output 10 - 12VDC 200mA
Dimensions in Inches Width
(Cutout Dimensions) Height
Depth
17.00 (17.12)
5.78 (5.90)
15.63 (16.75)
Shipping Weight 43 lbs
Power Consumption
1220 watts max
12.2 Amps max current draw
125 watts @ no input
Replacement Fuses
AC Line - 12 Amp / 250 Volt Slow Blow
Rails - 4 Amp / 250 Volt Time-Lag
Speakers - 4 Amp / 250 Volt Slow Blow
SPECIFICATIONS