Series: Apocalypse
The Apocalypse ASA-550.4 is a high-performance 4-channel Class D amplifier engineered for those who demand raw power and absolute clarity. With a robust design capable of stable operation at 1 Ohm, it delivers massive output to drive your high-end audio setup to the limit.
Built for competitive SPL and everyday high-fidelity, this amplifier features a versatile crossover system and high-efficiency circuitry. Whether you are building a complex component system or powering multiple subwoofers, the ASA-550.4 provides the thermal stability and current delivery needed to dominate the lane.
| Model | ASA-550.4 |
| Class | D |
| Number of the channels | 4 |
| Frequency response | 10-20000 Hz |
| 1 Ohm RMS Power (14.4 V) | 550 W x 4 |
| 2 Ohm RMS Power (14.4 V) | 350 W x 4 |
| 4 Ohm RMS Power (14.4 V) | 225 W x 4 |
| 2 Ohm RMS Power (Bridge) | 1100 W x 2 |
| 4 Ohm RMS Power (Bridge) | 700 W x 2 |
| Minimum permissible load on the channel | 1 Ohm |
| Minimum permissible load in a bridge connection | 2 Ohm |
| Low pass filter | 50-1200 Hz |
| High pass filter | 10-1200 Hz |
| Crossover | 12 dB/Oct |
| Damping factor | ≥ 75 |
| Working voltage | 9 - 16 V |
| Signal-to-noise ratio | ≥ 90 dB |
| Size (W×L×H) | 9.45 × 16.93 × 2.50 inch |
| Gross weight | 14.37 lb (6.52 kg) |
