Product highlights8-channel car amplifier with digital signal processing 50 watts RMS x 6 + 150 watts RMS x 2 at 4 ohms 50 watts RMS x 6 + 300 watts RMS x 2 at 2 ohms High-Resolution Class D amp technology frequency response: 10-48,000 Hz digital signal processing: 96 kHz, 24-bit initial setup made via Alpine's DSP control app on your PC device automatic tuning via iPhone uses built-in mic and Bluetooth® connection to amp (dongle included) automatic and manual tuning via PC uses an external measurement microphone like Alpine's KTX-CSP1 and USB connection to amp (cable included) signal processing includes input/output routing, 31-band EQs, and multi-channel time alignment Anti-EQ eliminates factory EQ curves inputs: coax and USB digital (up to 96 kHz, 32-bit); 8-channel high-level speaker (up to 30V); 6-channel RCA amp's remote turn-on circuit ("Switched Power Lead") uses the included high-level input harness preamp outputs: 8-channel processed (4V) wiring and hardware not included with amplifier 10-gauge power and ground wires recommended fuse rating: 40A dimensions: 8.82"W x 2.14"H x 10.43"D warranty: 1 year What's in the box8-Channel processor/amplifier (installed 40A mini-ATO fuse) CSP Controller (attached 16" cable with 4-pin connector) 16.25' Controller cable (4-pin connector on one end / RJ-12 connector on other end) KCE-800BT Bluetooth module (attached 6" cable terminated in an RJ-45 connector) 5' USB-A cable (2.0) 6" 20-Pin input harness 6" 12-Pin output harness 2 Mounting plates Four 3/4" pan-head screws Ten 6mm counter-sunk machine screws Quickstart guide (En/ Sp/ Fr/ Others) Warranty information Product registration information Quickstart addendum About this itemWritten by Crutchfield's Buck PomerantzSounds great automatically Alpine has eliminated the pain and confusion that usually goes along with trying to tune your system's sound using a digital signal processor or DSP/amplifier by making an amplifier that tunes itself. The Alpine Optim8™ eight-channel PXE-C80-88 amplifier features automatic sound tuning and High-Definition performance so you'll experience exceptional fidelity, clarity, balance, and impact in your music without having to spend hours fiddling with controls and testing devices. Alpine's DSP control app Matrix mixing allows for summing and input/output signal management. Fully adjustable high-pass, low-pass, and bandpass filters, plus 31-band equalizers on every channel match the sound to your speakers and smooth out any hot spots or dips in the response due to your vehicle's interior. The delay feature lets you center the stereo image for your listening position. After initial setup using your PC device, all adjustments can be made automatically using the PXE-C80-88's control app run on your iPhone using its built-in mic, or with your PC using a separate measurement microphone, like Alpine's KTX-CSP1. PC users can make all the sound adjustments manually to create a more personalized soundscape. The DSP control app uses your iPhone's built-in mic. Power under the hood While the PXE-C80-88 can act as a stand-alone processor for use with your own aftermarket amplifiers, its built-in 8-channel amp has plenty of power to run your system. It puts out six channels of 50 watts RMS each to speakers with 4- to 2-ohm impedances — so it'll work equally well with factory and aftermarket speakers — plus two channels that can each produce 150 watts RMS at 4 ohms and 300 watts RMS at 2 ohms, to power louder mid-bass drivers and subwoofers.