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Congratulations!
Thank you for choosing a Diamond Audio Technologies D1 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 D1 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 D1 Series Amplifiers Feature:
• Pulse Width Modulated (PWM) MOSFET Switching Power Supply
•Extruded Aluminum Heatsink
•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
• 6dB bass boost
• Chassis mounted ATC/ATO type automotive fuses
• Proudly Designed and Engineered in the USA
D1 250.2 / D1 300.4 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
D1 400.1 Features
•Class AB Amplifier Topology
• Internal 12dB/Octave Low Pass Filter (40-250Hz)
• Bass Boost EQ (0 to +6dB) at 50Hz
• Remote Level Control for Dash Mounting
• Intended for use on subwoofers
