Description
Crunch CRA Series Monoblock Class D Amplifier
The Crunch CRA Series monoblock amplifier is engineered to deliver strong, efficient bass performance in a compact and versatile design. Built on a Class D platform, it provides high output power while maintaining efficiency, making it ideal for subwoofer applications in a wide range of mobile audio systems.
Power & Performance
With up to 1500 watts of maximum output at 1 ohm, this amplifier is designed to drive subwoofers with authority. It delivers 750 watts at 2 ohms and 375 watts at 4 ohms, offering flexible impedance matching for different system configurations.
A wide frequency response and low total harmonic distortion ensure accurate bass reproduction, while a strong signal-to-noise ratio helps maintain clean output.
Precision Tuning Controls
Fine-tune your system with a variable low-pass crossover ranging from 40Hz to 300Hz and a 12dB/octave slope. The built-in subsonic filter (10Hz–40Hz) helps eliminate unwanted ultra-low frequencies, protecting your subwoofer and improving overall efficiency.
A built-in bass boost (0–12dB) and included wired bass remote allow convenient, real-time adjustment of low-frequency output from anywhere in the vehicle.
Integration & Connectivity
Designed for flexible installation, the amplifier supports both RCA and high-level inputs, making it compatible with a wide variety of source units. The DC signal sense feature enables automatic turn-on when an audio signal is detected, eliminating the need for a remote turn-on wire.
Durable nickel-plated brass terminals and screw-down connectors ensure secure, corrosion-resistant connections for power and speaker wiring.
Protection & Reliability
Built-in LED diagnostic indicators provide visual feedback for overload and speaker short protection, helping safeguard your system. An external 125A fuse adds an additional layer of protection for reliable operation.
Specifications
| Amplifier Class | Class D |
| Channels | 1 (Monoblock) |
| Max Power | 1500W |
| Power @ 1 Ohm | 1 x 1500W |
| Power @ 2 Ohms | 1 x 750W |
| Power @ 4 Ohms | 1 x 375W |
| Frequency Response | 12Hz – 310Hz |
| Signal-to-Noise Ratio | 105.3 dBA |
| Total Harmonic Distortion | < 0.27% |
| Input Sensitivity | 0.2 – 6V |
| Low Pass Crossover | 40Hz – 300Hz (12dB/octave) |
| Subsonic Filter | 10Hz – 40Hz |
| Bass Boost | 0 – 12dB |
| Inputs | RCA & High-Level |
| Power/Ground Terminals | 4 AWG |
| Speaker Terminals | 8 AWG |
| Fusing | External 125A |
Used Frequently Asked Questions
- What does used mean? Used products may be unused customer returns that are essentially "new" items, or they may be previously installed products that were returned under warranty or during our return policy period.
- What is the warranty? All of our used items come with a 90-day warranty.
- What's it look like? All of our used items are inspected and graded by our returns team at our facilities. They will test them and grade them to one of four standard gradings: Used Open Box, Used Very Good, Used Good, and Used Acceptable. Please see the following descriptions of each grade - also note that if an item falls under ANY of the criteria for a certain grade, even though the rest of the product is better, we will give it the lowest grade.
- Used Open Box An item in perfect working condition. Original protective wrapping may be missing, but the original packaging is intact and in good condition with minor damage possible. Instructions are included.
- Used Very Good A well-cared-for item with limited use, remains in good working condition. The item may show some limited signs of wear,small scratches,cosmetic blemishes. Item may arrive with damaged packaging or be repackaged and could be missing some accessories.
- Used Good The item shows wear from use, remains in good condition and functions properly. May have damaged packaging or be repackaged. It may be marked, have identifying markings on it, have minor cosmetic damage. It may be missing some parts or accessories.
- Used Acceptable The item is fairly worn but continues to function properly. While repackaged; signs of wear can include aesthetic issues; scratches, dents. The item may have markings on it or show signs of previous use. Item may be missing some parts or accessories.
- Have more questions? Call us, send us a chat, or an email. We'll be able to answer any additional questions you may have.