Diamond Audio 4-Channel 1200W RMS CLASS D Amplifier with 6CH DSP - NEO12004DSP
Versatile Power Meets Precision Control
The Diamond Audio NEO12004DSP is the definitive solution for audiophiles seeking the perfect balance of multi-channel power and sophisticated tuning with onboard 8CH DSP. As a high-efficiency Class D 4-Channel amplifier ,it delivers a robust 1200W RMS total output, 150W RMS x 4 @ 4Ω or 300W RMS x 4 @ 2Ω, providing the versatile strength needed to drive high-end component speakers or subwoofers when bridged at 600W x 2 @ 4Ω , all while maintaining the pure sonic clarity Diamond Audio is known for.
Advanced Full DSP Integration
Unlike standard multi-channel amplifiers, the NEO12004DSP features an integrated, full-service Digital Signal Processor . With 31 bands of parametric EQ per channel , precise crossovers, time delay , and channel linking, you have total command over your entire soundstage. Whether you are tuning via PC or Android , the NEO Series provides a professional-grade interface to calibrate your system for any acoustic environment.
Seamless OEM & EV Integration
Designed for the modern vehicle landscape, the NEO12004DSP excels in integration. It features high-voltage signal inputs (up to 20V) and selectable on-board load resistors (10Ω - 20kΩ) to interface perfectly with complex factory (OEM) systems . Furthermore, its EV-friendly voltage compatibility (8-17V) ensures stable performance in electric and hybrid vehicles without compromising the vehicle’s electrical integrity.
Versatile & Rugged Engineering
Built to perform in diverse environments, the NEO12004DSP features a marine-ready , water-resistant chassis , making it an ideal choice for high-end car audio, marine, and powersports installations . The compact footprint , staggered RCA connections, and high-current quick-connect power blocks ensure a clean, professional installation even in tight spaces, offering a powerful four-channel solution that is as durable as it is precise.
Features
- Full 6CH DSP integration: 4CH internal, 2CH output. 31 band parametric EQS per channel, crossovers, time delay, channel linking, PC or Android programming for advanced tuning and much more
- Easy OEM integration features:
- Up to 20V signal inputs (High/Low level 20V – 0.4V)
- Selectable on-board load resistors (10Ω, 20Ω, 60Ω, 20kΩ)
- EV friendly voltage compatibility (8V – 17V)
- Bluetooth Audio streaming direct to amplifier
- Control via IOS or Android App (coming soon)
- Marine ready, water-resistant chassis
- Staggered RCA connections for clean installations
- High-current quick-connect power block
- NeoDRC1 Diamond Remote Commander compatible (sold separately)
- 2 RCA preamp outputs for system expansion
- Ultra-low distortion (0.05% THD)
What our Experts Think
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Combines a 4-channel high-power amplifier with 6-channel DSP, making it a complete tuning and amplification solution.
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Delivers up to 1200W RMS Class D power for strong, clean output across full-range systems.
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Built-in advanced DSP control allows precise tuning of EQ, crossovers, time alignment, and system balance.
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Designed for high-performance motorcycle and powersports audio systems where clarity at speed is critical.
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Compact NEO-series chassis supports flexible installation in tight factory or custom locations.
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High-efficiency design ensures cool operation and stable performance under heavy load conditions.
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Ideal for users wanting a single-unit upgrade combining power, tuning control, and system optimization.
Q&A
Q: What is the Diamond Audio NEO12004DSP amplifier?
A: Diamond Audio NEO12004DSP 4-Channel 1200W RMS Class D Amplifier with 6CH DSP is a high-performance 4-channel Class D amplifier with built-in 6-channel DSP designed for precision tuning and high-output car, motorcycle, and powersports audio systems.
Q: How much power does it deliver?
A: It produces up to 1200W RMS total output, with 150W x 4 @ 4Ω, 300W x 4 @ 2Ω, and 600W x 2 bridged @ 4Ω for flexible system configurations.
Q: What is the built-in DSP used for?
A: The integrated 6-channel DSP allows advanced tuning including EQ, crossovers, time alignment, and system calibration for precise sound staging.
Q: Can it work with factory OEM audio systems?
A: Yes. It supports high-voltage inputs and OEM integration, making it ideal for upgrading factory Harley-Davidson, car, and marine audio systems.
Q: Is it suitable for motorcycles and harsh environments?
A: Yes. It features a compact, water-resistant design built for vibration, heat, and weather exposure in powersports applications.
Q: What kind of sound quality does it provide?
A: Clean, low-distortion, high-efficiency output with full tuning control for loud, detailed, and balanced audio even at highway speeds.
Q: Who is this amplifier best for?
A: It’s ideal for users building high-end audio systems who want both strong power output and professional DSP tuning control in one unit.
Maintenance Tips
- Install in a well-ventilated, dry location to prevent heat buildup and moisture damage.
- Regularly check all power, ground, and speaker connections for tightness and corrosion.
- Inspect RCA, signal, and DSP control cables for secure fit and wear.
- Keep amplifier and DSP unit free from dust using a soft, dry cloth or low-pressure air.
- Avoid blocking heatsinks or ventilation fins during operation.
- Ensure stable voltage supply to maintain clean DSP and amplifier performance.
- Properly tune DSP settings (gain, EQ, crossover, time alignment) to avoid clipping.
- Do not expose to direct water spray, high humidity, or extreme temperatures.
- Power off system before adjusting wiring or DSP configuration.
- Periodically check for vibration-related loosening if installed on motorcycles or off-road use
Damage 
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