High-Power 4-Channel DSP Matrix Amplifier with AccuBASS AudioControl has paired its award-winning amplifier technology with its powerful Matrix DSP into the D-4.800. This single-unit solution provides unprecedented power and tuning flexibility when you require audio perfection from your factory or aftermarket sound system. The D-4.800 features active speaker level inputs line-level inputs and outputs plus using AudioControls DM Smart DSP app gives you complete control over all features including 30 bands of equalization signal delay input delay polarity and AudioControl proprietary features like AccuBASS GTO Signal Sense and MILC plus integrated input and output RTAs. Perfect for OEM integration and aftermarket builds the D-4.800 packs power and intelligent flexibility into one beautiful cast aluminum chassis. Features: Built-in DSP Configurable as 4/3/2 channel amplifier 4 x 200 watts @ 2 ohms 4 x 125 watts @ 4 ohms 400 watts @ 4 ohms bridged AccuBASS Processing MILC Maximum Input Level Control (Patent Pending) GTO Signal Sense Active speaker-level inputs (6 channels) for OEM integration 4 preamp inputs 2 assignable preamp outputs Solid One-Piece Aluminum Chassis Input and Output RTA for precise and informed tuning Input and Output Delay 12 and 24 dB/octave Linkwitz-Riley crossovers 30 band equalizer Optional ACR-3 remote for preset recall and level control DM Smart DSP app available in downloads for Mac/PC DM Smart DSP Connect your laptop to the D-4.800 using AudioControls DM Smart DSP app a fully-featured Matrix DSP Interface designed to give you instant and clear control over every aspect of your processor. Route any input to any output adjust gain delay and polarity then precisely tune the D-4.800 using a 30 band EQ. High-pass low-pass and band-pass can be set up for any output using 12 or 24 dB/octave Linkwitz-Riley crossovers. For OEM integration take advantage of the input and output RTAs available for every input