ALPINE S-A60M 600 Watt RMS Mono Car Audio Amplifier Subwoofer Class-D+Bass Knob

Alpine’s Class D Amplifier Circuit
CTA-2006-B Power Rating: 330W RMS x 1 (4ohm, 14.4V ≤ 1% THD+N); 600W RMS x 1 (2ohm, 14.4V ≤ 1% THD+N)
S/N ratio: >85dB (ref: 1W into 4 ohm), >105dB (ref: rated power into 4 ohm)
THD+N ≤ 0.03% (ref 1W info 4 ohm)
Frequency Response: 10Hz-400Hz (+/-3 dB)
Damping Factor: > 1000