Specifications
Type: Monoblock Class D Full-Range Amplifier
Series: Diamond Audio DES Series
Channels: 1 (Mono)
Power Output (RMS @ 14.4V):
• 450 W × 1 @ 4 Ω
• 500 W × 1 @ 2 Ω
• 500 W × 1 @ 1 Ω
Total Power Output: 500 W RMS / 1,000 W Max
Frequency Response: 10 Hz – 250 Hz (±1 dB)
Signal-to-Noise Ratio: >90 dB
THD (Total Harmonic Distortion): <0.05%
Input Sensitivity: 200 mV – 6 V
Input Impedance: 22 kΩ
Crossover Type: Variable Low-Pass Filter (12 dB/Octave)
Crossover Range: 30 Hz – 250 Hz
Subsonic Filter: 10 Hz – 50 Hz (12 dB/Octave)
Bass Boost: 0 – 12 dB @ 45 Hz
Phase Control: 0° – 180° Adjustable
Preamp Outputs: Full-Range RCA Pass-Through
Remote Bass Level Control: Included
Power Terminals: 4 AWG Input / 8 AWG Speaker Output
Fuse Rating: 2 × 25 A (Internal Mini Blade Fuse)
Cooling System: Advanced Aluminum Heatsink with Micro-Fin Thermal Management
Operating Voltage: 9 V – 16 V DC
Protection Features: Thermal, Short Circuit, Overload, Reverse Polarity
Construction: Conformal Coated PCB for Marine / Motorsport Durability
Dimensions (L×W×H): 8.5" × 5.5" × 1.8" (216 × 140 × 46 mm)
Weight: 3.9 lbs
Warranty: 1-Year Manufacturer Warranty
Performance Specs
• Compact high-efficiency Class D topology ensures low heat and maximum output.
• Optimized for powering subwoofers or high-demand midbass drivers.
• Delivers powerful, distortion-free bass from a small chassis footprint.
• Stable at 1Ω for flexible wiring configurations and multiple sub setups.
• Designed for daily performance with low noise and high control.
Key Features
• True 1Ω Stability – Reliable operation in low-impedance subwoofer systems.
• Class D Design – Efficient power conversion for cooler, consistent performance.
• Variable Filters – Full control over subsonic and low-pass tuning.
• Remote Bass Knob – On-the-fly subwoofer level adjustments from the dash.
• Compact, Heavy-Duty Heatsink – Ensures thermal stability under continuous use.
• Full Protection Circuitry – Prevents damage from heat, shorts, or overloads.
• RCA Pass-Through – Simplifies multi-amp system expansion.
• Diamond Audio Engineering – Built for power, precision, and long-term reliability.
Performance Integration Notes
• Ideal Pairing: Diamond DESMB10D, DESMB12D, or DMD104SH subwoofers.
• System Compatibility: Works in automotive, motorcycle, and marine applications.
• Recommended Use: Dedicated subwoofer amplifier or midbass channel.
• Installation Time: Approx. 1 hour.
• Pro Tip: Set subsonic filter 5–10 Hz below box tuning frequency and keep gain below clipping threshold for longest woofer life.
