Deaf Bonce Apocalypse ASA-750.4 4-Channel 750W RMS x 4 @ 1-Ohm Class-D AmplifierBRAND NEW DEAF BONCE ASA 750. 4 APOCALYPSE 4 Channel 750 Watts RMS x 4 @ 1 Ohm Class D Amplifier Key Features: Model: ASA 750. 4 Class: D Number of Channels: 4 Frequency Response: 10 20,000 Hz RMS Power at 14. 4 V: 1 Ohm: 750W x 4 2 Ohm: 490W x 4 4 Ohm: 310W x 4 2 Ohm (Bridge): 1500W x 2 4 Ohm (Bridge): 980W x 2 Minimum Permissible Load: On channel: 1 Ohm In bridge connection: 2 Ohm Low Pass Filter: 50 1200 500 12,000 Hz High Pass Filter: 10 1200 100