Specifications
Type: Mono Digital Subwoofer Amplifier
Series: Diamond Audio DMD Series
Channel Configuration: 1 Channel (Mono Block)
Class Type: Class D Full-Range Digital
Rated Power Output (RMS):
• 125 W x 1 @ 4 Ω
• 250 W x 1 @ 2 Ω
Peak Power Output: 500 W Max
Frequency Response: 20 Hz – 250 Hz
Signal-to-Noise Ratio: >90 dB
Total Harmonic Distortion (THD+N): <0.1%
Input Sensitivity: 200 mV – 6.0 V
Low-Pass Crossover: 40 Hz – 250 Hz (12 dB/Octave)
Subsonic Filter: 10 Hz – 40 Hz Adjustable
Bass Boost: 0 – 12 dB @ 45 Hz
Phase Adjustment: 0° / 180° Switchable
Fuse Rating: 25 A
Efficiency: >85% at 4 Ω
Input Type: RCA Low-Level Inputs
Output Type: RCA Pass-Through Pre-Outs
Protection Circuits: Thermal, Overload, Short Circuit, and DC Offset Protection
Cooling System: Aluminum Heatsink with Forced Thermal Dissipation
Dimensions (L×W×H): 7.5" × 5.0" × 1.8" (190 × 127 × 46 mm)
Weight: 3.2 lbs
Warranty: 1-Year Manufacturer Warranty
Performance Specs
• Compact Class D amplifier delivers clean, controlled power for single subwoofer applications.
• Highly efficient digital design minimizes heat and current draw for stable operation.
• Full protection circuitry ensures reliability in demanding installations.
• Designed for smooth, tight bass response with precise control.
Key Features
• Compact Mono Block Design – Ideal for under-seat or stealth subwoofer installs.
• Efficient Class D Topology – Provides more power with less current draw.
• Fully Adjustable Filters – Includes variable low-pass, subsonic, and bass boost control.
• RCA Pre-Outs – Simplifies system expansion with additional amplifiers.
• Thermal and Short Circuit Protection – Safeguards amplifier and subwoofer.
• Heavy-Duty Aluminum Heatsink – Keeps operating temperatures cool under load.
• Diamond Audio Quality – Built for long-term reliability and clean, dynamic performance.
Performance Integration Notes
• Ideal Pairing: Diamond DMD Series or DES Series 10"/12" Subwoofers (150–300 W RMS).
• System Compatibility: Works with factory or aftermarket head units via RCA inputs.
• Recommended Use: Single subwoofer amplification in compact or OEM-style setups.
• Installation Time: Approx. 1–1.5 hours.
• Pro Tip: Set subsonic filter near enclosure tuning frequency and adjust gain using a digital multimeter to prevent clipping.