Description
The Recoil SPL4200.4 is a high-output four-channel half-bridge amplifier for full-range and pro-audio speaker systems. Recoil identifies the model as 1-ohm stable and equips it with microprocessor-controlled cooling fans, dual 1/0-gauge power and ground connections, and Tiffany-style RCA connectors.
Recoil publishes 420 watts RMS × 4 at 4 ohms, 720 watts RMS × 4 at 2 ohms, and 1,050 watts RMS × 4 at 1 ohm. The current manufacturer page lists two different bridged-power figures under the same 4-ohm label, so no bridged rating is stated on this listing.
Specifications
| Model | SPL4200.4 |
|---|---|
| Amplifier type | High-output four-channel full-range amplifier |
| Channels | 4 |
| RMS power at 4 ohms | 420 watts × 4 |
| RMS power at 2 ohms | 720 watts × 4 |
| RMS power at 1 ohm | 1,050 watts × 4 |
| Minimum stereo impedance | 1 ohm |
| Published bridged power | Not stated because the current manufacturer page contains conflicting bridged figures under the same 4-ohm label |
| Frequency response | 10 Hz–23.5 kHz |
| Signal-to-noise ratio | 88 dB |
| Input sensitivity | 0.2–6 volts |
| Bass boost | 0–16 dB |
| Protection | Thermal, voltage, speaker, and DC-reverse protection |
| Cooling | Microprocessor-controlled fans |
| Power and ground connections | Dual 1/0 gauge |
| Dimensions | 20.6 × 9.25 × 2.64 inches |
Confirm the exact speaker load on every channel, cable and fuse sizing, mounting airflow, charging-system capacity, and voltage behavior before installation.






