Description
Overview
The Crunch CRA-2000.4 is a 4-channel Class D mobile amplifier designed for efficient power delivery and flexible system integration. Featuring a Switch Mode Power Supply (SMPS), it maintains stable output across varying battery voltages for consistent audio performance in automotive environments.
Key Features
- Class D amplification for efficient, high-output performance with reduced current draw
- SPEED-FET MOSFET output device technology for improved efficiency and low distortion
- Low noise preamplifier circuit for clean signal transfer from source to amplification stage
- RCA and high-level inputs for compatibility with aftermarket and OEM audio systems
- Auto turn-on functionality for simplified OEM integration
- Nickel-plated brass terminals with screw-down connectors for secure, corrosion-resistant connections
Power & Performance
- Maximum Power: 2000W
- 4 x 500W @ 2Ω
- 4 x 250W @ 4Ω
- 2 x 1000W bridged @ 4Ω
- THD: <1.0%
- Signal-to-Noise Ratio: -77.7dBA
- Frequency Response: 10Hz – 30kHz
Crossover & Signal Control
Integrated electronic signal processing allows precise tuning of system output to match speakers and subwoofers.
- Fully adjustable 12dB/octave electronic crossover
- High-pass filter range: 40Hz–400Hz
- Low-pass filter range: 40Hz–400Hz
- Built-in electronic equalizer for output tailoring
Installation & Connectivity
- RCA & high-level speaker inputs for universal compatibility
- Auto turn-on support for OEM integration
- 4 AWG power and ground terminal support
- 8 AWG speaker output terminals
- External 75A fuse protection
- LED diagnostic indicators for protection status monitoring
Construction
- Compact Class D design for efficient space usage
- SMPS power supply for stable voltage handling
- Quick Thermal Dispersion aluminum heat sink for cooling efficiency
Specifications
| Brand | Crunch |
|---|---|
| Series | CRA |
| Model | CRA-2000.4 |
| Channels | 4 |
| Amp Class | Class D |
| Max Power | 2000W |
| 2Ω Output | 4 x 500W |
| 4Ω Output | 4 x 250W |
| Bridged Output | 2 x 1000W @ 4Ω |
| Crossover | 12dB/oct variable electronic |
| HPF Range | 40Hz – 400Hz |
| LPF Range | 40Hz – 400Hz |
| Frequency Response | 10Hz – 30kHz |
| THD | <1.0% |
| SNR | -77.7dBA |
| Inputs | RCA & High-Level |
| Power Wire Gauge | 4 AWG |
| Speaker Wire Gauge | 8 AWG |
| Fusing | External 75A |