Description
Overview
The Crunch CRA-950.4 is a versatile 4-channel Class D amplifier designed for flexible system builds, delivering efficient power output for full-range speakers or bridged subwoofer configurations. Its switch mode power supply ensures stable performance regardless of vehicle voltage conditions.
Key Features
- 4-channel Class D amplifier with high-efficiency design
- Switch Mode Power Supply (SMPS) for stable voltage handling
- RCA and high-level inputs for OEM and aftermarket compatibility
- Multiple operation modes including stereo and bridged configurations
- Fully adjustable 12dB/octave electronic crossover network
- Low-noise preamplifier circuit for clean signal processing
Engineering & Performance
Built with Crunch SPEED-FET MOSFET output technology, the CRA-950.4 maximizes efficiency while minimizing distortion. Its aluminum heat sink and thermal dispersion design help maintain consistent operating temperatures during extended use, while protection circuitry monitors for overload and speaker faults.
With a frequency response of 10Hz–30kHz and signal-to-noise ratio of -72.9dBA, the amplifier delivers balanced full-range performance suitable for both stage speaker setups and bridged subwoofer applications.
Integration & Controls
Installation flexibility is supported through RCA and high-level inputs, allowing integration with factory systems or aftermarket head units. The DC auto turn-on function simplifies wiring in OEM applications, while adjustable crossovers allow precise tuning of high-pass and low-pass frequencies from 40Hz to 400Hz.
Specifications
| Brand | Crunch |
|---|---|
| Series | CRA |
| Model | CRA-950.4 |
| Amplifier Class | Class D |
| Channels | 4 |
| Max Power | 950W |
| Power @ 2 Ohm | 4 × 235W |
| Power @ 4 Ohm | 4 × 115W |
| Bridged Power @ 4 Ohm | 2 × 475W |
| Frequency Response | 10Hz – 30kHz |
| Crossover Range | 40Hz – 400Hz (HPF/LPF, 12dB/oct) |
| Signal to Noise Ratio | -72.9dBA |
| THD | <1.0% |
| Inputs | RCA & High-Level |
| Power Input | 4 AWG |
| Speaker Output | 8 GA |
| Fusing | External 50A |