A3

Internal Class AB Subwoofer Amplifier

Compatible Subwoofers:
ID1 Series: ID1.15
SW Series: SW1 | SW2 | SW3 | SW4

Specifications
Drive Control Patented non-distorting, frequency-selective excursion limiter
Crossover 24 dB/octave low pass adjustable from 40 Hz to 100 Hz in 3 Hz steps
(may be switched “out” for full-range sound)
Frequency Response 20 Hz – 20 kHz +/- 0.25 dB
Harmonic Distortion < 0.05% (@ 1kHz, 1 Watt)
Voltage Gain (dB) S/N 38 dB (externally switchable to 28 dB or 48 dB plus rotary
gain control +/- 9dB in 1/2 dB steps)
Damping Factor 95 dbA
Input Impedence 300 @ 60 Hz
Output Load 10 K Ohms, (2.5 minimum)
Power Output 2.5 Ohms (640 W), 4 Ohms (500 W), 8 Ohms (360 W)
Inputs L & R RCA Low and high levels (RCA Plus XLR optional without high levels)
Outputs N/A
Power Requirements 120/240v AC, 50/60 6A slow-blow fuse
Level Control +/- 19dB w/fixed 1/2 dB steps
Auto On/Off Autopower down if no signal for 20 minutes (turn-on sensitivity 2 mv)