Congratulations!

Thank you for choosing a Diamond Audio Technologies D3 Series amplifier. We sincerely believe that DAT products offer you outstanding per- formance and value. DAT products are engineered and produced with the highest quality materials and incorporate the latest technology. We think you will find your new DAT amplifier meets or exceeds your expectations and provides excellent value.

Properly installed, your new DAT D3 Series amplifier will provide years of high quality sonic reproduction. Before installing the DAT amplifier in your vehicle, please read the entire manual carefully. It is required reading for the protection of your vehicle and for the maximum performance of your mobile audio system. All DAT amplifiers have been extensively tested and “burned-in” for maximum reliability. If after reading this manual, you still have questions regarding this product, we recommend that you contact your authorized DAT dealer for expert installation assistance.

If you need assistance with repair or warranty, detailed warranty and return/repair information is listed in the back of this manual. Be sure you record your serial number, model number and date of purchase for your DAT amplifier as this will be necessary for any returns.

Please Practice Safe Sound!

Continuous exposure to sound pressure levels over 100 dB may cause permanent hearing loss. High powered mobile audio systems may produce sound pressure levels well over 130dB. Use common sense and practice safe sound.

All Diamond Audio D3 Series Amplifiers Feature:

• Pulse Width Modulated (PWM) MOSFET Switching Power Supply

Extruded Aluminum Heatsink

Double sided PC boards

•Nickel Plated RCA Low Level Audio Inputs

•Nickel plated, low resistance power and speaker connector blocks

Power ON and Protection LED Lighting for Easy Diagnostics

Thermal, Short Circuit, and Overload (Low Impedance) Protection

12 dB bass boost

Chassis mounted ATC/ATO type automotive fuses

Proudly Designed and Engineered in the USA

D3 400.2 / D3 500.4 Features

•Class AB Amplifier Topology

Bridgeable Output Capability (4 Ohms)

Stereo/Mono Mix Capability (Hybrid 3rd channel from 2 channels) •Stable into 2 Ohm Stereo Loads

Internal 12dB/Octave High Pass or Low Pass Filter (40-400Hz) •Pass -Thru Line Output for Daisy Chaining Amplifiers

Versatile for either full range or subwoofers

D3 600.1 / D3 1000.1 Features

•Class D Mono Amplifier Topology- D3 1000.1

•Class AB Amplifier Topology - D3 600.1

High Current Output Capability (2 or 1 Ohm)

Internal 12dB/Octave Low Pass Filter (D3 1000.1 50-250Hz; D3 600.1 30-250Hz)

Bass Boost EQ (0 to +12dB) at 50Hz

Remote Level Control for Dash Mounting

Intended for use on subwoofers

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Diamond Audio Technology D3 1000.1, D3 600.1 All Diamond Audio D3 Series Amplifiers Feature, D3 400.2 / D3 500.4 Features

D3 400.2, D3 1000.1, D3 600.1, D3 500.4 specifications

Diamond Audio Technology has built a robust reputation in the car audio industry by focusing on high-performance audio solutions. Their D3 series, encompassing the D3 1000.1, D3 400.2, D3 500.4, and D3 600.1 amplifiers, showcases an impressive range of features and advanced technologies designed for audiophiles and casual listeners alike.

The D3 1000.1 is a powerhouse mono amplifier that delivers an impressive 1000 watts RMS at 1 ohm. One of its standout features is the Class D circuitry, which enhances efficiency and minimizes heat generation, allowing for a compact design without compromising power output. The inclusion of a variable low-pass filter allows users to tailor the frequency response, ensuring that bass notes are delivered with exceptional clarity and precision. Additionally, the built-in bass boost feature can enhance low-frequency performance, making it ideal for subwoofer applications.

Next in line is the D3 400.2, a versatile 2-channel amplifier designed for driving both component and coaxial speakers. With a power output of 400 watts RMS at 2 ohms, it strikes a balance between performance and practicality. The amplifier boasts a high-level input feature, allowing for easy integration with factory audio systems. Its adjustable crossover settings enable users to customize the sound profile to suit their preferences, ensuring a rich and immersive auditory experience.

The D3 500.4 acts as a 4-channel amplifier, providing versatility for multi-speaker setups. Delivering 500 watts RMS at 2 ohms, this model excels in driving both front and rear speakers simultaneously. It features a built-in high-pass filter that helps to protect speakers from frequencies they can’t handle while enhancing overall sound quality. Its compact design allows for seamless installation in various vehicle types, ensuring that space constraints do not compromise audio fidelity.

Lastly, the D3 600.1 is another mono amplifier that fits perfectly into the D3 lineup. With a power output of 600 watts RMS at 1 ohm, it offers substantial bass performance suitable for any subwoofer system. It also employs advanced thermal management technology, ensuring consistent performance while preventing overheating during prolonged use. The D3 600.1 features a full-range Class D design, combining efficiency with power that fans of deep bass will appreciate.

In conclusion, the Diamond Audio Technology D3 series amplifiers — the D3 1000.1, D3 400.2, D3 500.4, and D3 600.1 — offer an impressive blend of power, efficiency, and versatility. Their advanced technologies and user-centric features make them a top choice for anyone seeking to enhance their car audio experience. Whether you're an audiophile seeking the ultimate sound quality or a casual listener wanting to boost the overall performance of your vehicle's audio system, the D3 series has something to offer.