The DD Audio ATC-250 is a terminal amplifier designed to replace the original terminal in the enclosures of the DD Audio LE series. Installation is very easy: remove the original terminal and cut or disconnect the wire from it. Connect the enclosure wires to the ATC-250's speaker wires, it is recommended to crimp the wires between them and use heat shrink tubing to protect the wires, after that you can screw the amplifier to the enclosure.

The DD Audio ATC-250 amplifier features two crossover filter options:

• SUB (SUBWOOFER) with available frequencies 30-80 Hz
• FR (FULL RANGE) with available frequencies 80 Hz - 25 KHz

The ATC-250 comes with a remote control with the following settings:

• REM: uses a traditional trigger wire
• RCA: wakes up when a signal is received on the RCA jacks
• DC: wakes up when a High-level signal is received on the RCA jacks (adapter must be purchased separately)

The package includes a wired bass level controller.

• Operating Voltage: 8 -16
• Input Channels: 1
• Output Channels: 1
• Continuous Wattage @ 4 Ohm: 100
• Continuous Wattage @ 2 Ohm: 175
• Continuous Wattage @ 1 Ohm: 250
• Max Current Draw (Amps): 25
• Boost Level (dB): 12
• Frequency response SUB: 30 - 80 Hz
• Frequency response FR: 80 Hz - 25 KHz
• Low-Pass Filter: 80 Hz
• Remote Subwoofer Controller included
• Mounting dimensions: 74.5 x 95.5 x 52.2 mm
• Faceplate dimensions: 96 x 122 mm