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Diamond Audio

Diamond Audio 5-Channel DES Series Full Range Class D Amplifier - DES1000.5D

Diamond Audio 5-Channel DES Series Full Range Class D Amplifier - DES1000.5D

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Diamond Audio 5-Channel DES Series Full Range Class D Amplifier - DES1000.5D

Transform your entire audio system with the Diamond Audio DES Series 5-Channel Full Range Class D Amplifier, engineered for premium car audio performance, system efficiency, and installation flexibility. As part of the flagship Diamond Elite DES Series, this amplifier delivers powerful, dynamic sound while maintaining a compact and uniform design across the lineup.

Built with advanced Class D digital amplifier technology, the Diamond Audio 5-channel amplifier provides 90W RMS x 4 + 150W x 1 at 4 ohms and 150W RMS x 4 + 250W x 1 at 2 ohms, delivering clean, distortion-free output for both speakers and subwoofers. With bridging capability up to 300W x 2 and 500W x 1, this versatile amplifier is perfect for powering a complete system from a single chassis.

Engineered with the latest digital chipset and full PWM power supply, the DES Series amplifier ensures efficient performance with THD as low as 0.03% and a strong signal-to-noise ratio up to -96.7dBA, providing exceptional clarity across the entire frequency spectrum.

Fine-tune your system with variable high-pass and low-pass crossover controls (35Hz–350Hz), allowing precise tuning for front, rear, and subwoofer channels. The Diamond Audio DES amplifier also features balanced differential inputs for clean, noise-free signal transmission and a high damping factor for improved speaker control and tighter bass response.

Installation is simplified with multiple auto turn-on options (VOX, DC offset, and REM), ensuring compatibility with factory and aftermarket head units. Built-in short circuit, thermal, and voltage protection safeguards your system, while the compact chassis allows flexible mounting in a wide range of vehicles.

The Diamond Audio DES Series 5-Channel Amplifier delivers powerful, refined, and all-in-one performance, making it the ultimate solution for complete high-end car audio systems seeking clarity, control, and efficiency.

Features

• 5-channel full range Class D amplifier
• 90W x 4 + 150W x 1 @ 4Ī© / 150W x 4 + 250W x 1 @ 2Ī©
• Bridging capability up to 500W subwoofer output
• Diamond Elite DES Series flagship performance
• Advanced digital chipset with full PWM power supply
• Variable HPF/LPF crossover controls (35Hz–350Hz)
• VOX / DC / REM auto turn-on options
• Balanced differential inputs for clean signal
• Compact, premium design for easy installation

What our Experts Think
  • 5-channel Class D amplifier design provides a complete solution for powering full audio systems with fewer components.
  • Delivers clean, efficient power to speakers and subwoofers while maintaining excellent sound quality.
  • Full-range frequency response ensures detailed highs, strong mids, and powerful bass output.
  • Compact amplifier design makes it ideal for space-limited installations in cars, motorcycles, and custom audio builds.
  • Advanced Class D technology improves efficiency while reducing heat and power consumption.
  • Built-in protection features help ensure reliable performance and long-term durability.
  • Perfect for users who want a simple, powerful, and high-performance audio upgrade from a single amplifier.
  • A great match for multi-speaker setups requiring strong output and flexible system tuning.
Ā  Ā 
Q&A Ā  Ā 

Q: What makes the Diamond Audio DES1000.5D a great amplifier upgrade?
A: The DES1000.5D is a 5-channel Full Range Class D amplifier designed to power an entire audio system with clean, efficient output from one compact chassis.

Q: How much power does the DES1000.5D deliver?
A: It delivers 90W x 4 + 150W x 1 RMS at 4Ī© and 150W x 4 + 250W x 1 RMS at 2Ī©, giving strong power for speakers and subwoofers.

Q: Can the DES1000.5D run my complete car audio system?
A: Yes. The 5-channel layout powers front/rear speakers plus a subwoofer, making it ideal for full-range car audio builds without needing multiple amplifiers.

Q: Does it work with factory radios?
A: Yes. The DES1000.5D supports high- and low-level inputs with VOX, DC offset, and remote turn-on options for flexible OEM and aftermarket integration.

Q: How do I tune the amplifier for better sound?
A: Built-in variable HPF/LPF crossovers, bass boost, and phase controls help fine-tune speaker balance, bass response, and overall system performance.


Maintenance Tips Ā  Ā 
  • Keep the amplifier clean by wiping away dust with a soft, dry microfiber cloth.
  • Ensure proper airflow around the amplifier to prevent heat buildup during operation.
  • Inspect power, ground, RCA, and speaker connections regularly for secure contact and corrosion.
  • Avoid pushing the amplifier into clipping or overloading to protect internal components.
  • Keep the amplifier dry and protected from moisture, vibration, and excessive heat for reliable performance.