Apocalypse ATOM-400.4 PRO | 400 Watt 4-channel amplifier

Unleash uncompromising power with the Apocalypse ATOM-400.4 PRO 4-Channel Amplifier, built for demanding multi-speaker systems that need serious low-impedance stability. Unlike most 4-channel amps on the market that top out at 2 Ohm per channel, the ATOM PRO runs stable all the way down to 1 Ohm — giving you the flexibility to wire complex setups like three pairs of speakers at a combined 1.33 Ohm load without breaking a sweat. Compact enough to fit tight installations yet powerful enough to rival Class AB sound quality, the ATOM-400.4 PRO delivers big output from a small footprint. Key Features Stable Down to 1 Ohm – Handles demanding low-impedance wiring configurations most 4-channel amps can't 4 x 400 Watts RMS – Full power output at 1 Ohm per channel 2 x 800 Watts RMS Bridged – Extra headroom at 2 Ohm bridged mode Compact, Space-Saving Design – Fits into tight or challenging installations Class AB-Level Sound Quality – Verified indistinguishable in blind tests by competition judges Adjustable Crossover Controls – Dial in high-pass and low-pass filtering for precise tuning High Signal-to-Noise Ratio – Clean, accurate sound reproduction Heavy-Duty Terminal Connections – Built for high-current wiring setups Specifications Model: Apocalypse ATOM-400.4 PRO Channels: 4-Channel Power RMS (4 Ohm): 4 x 200 Watts Power RMS (2 Ohm): 4 x 310 Watts Power RMS (1 Ohm): 4 x 400 Watts Power RMS (4 Ohm Bridged): 2 x 620 Watts Power RMS (2 Ohm Bridged): 2 x 800 Watts High Pass Filter: 20 – 12,000 Hz Low Pass Filter: 45 – 12,000 Hz Crossover Slope: 12 dB/Octave Frequency Response: 20 – 20,000 Hz Input Sensitivity: 0.2 – 6V Input Sensitivity (High Level Inputs): 1.7 – 11V Signal-to-Noise Ratio: 80 dB Damping Factor: 102 Integrated Fuse: No Input Terminal Connection: 4 AWG / 21.2 mm² Output Terminal Connection: 10 AWG / 5.27 mm² SKU: DEF-ATOM-400.4PROUPC: H202624036000111