Alpine PXE-C60-60: 6-Channel Optim Digital Signal Processor

Sounds great automatically:

Alpine has eliminated the pain and confusion that often goes alongside trying to tune your system's sound using a Digital Signal Processor (DSP) by making an audio processor that tunes itself.  The Alpine Optim6 6-Channel PXE-C60-60 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 through 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 band pass 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 centre the stereo image for your listening position.  After initial setup using your PC device, all adjustments can be made automatically using the PXE-C60-60's control app run on your iPhone using its built in mic, or through 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 microphone.

Amplifiers not included:

The PXE-C60-60 has no built in amplification, as it's designed to accommodate a wide variety of system configurations.  You can hook up and control 4-Channel, 2-Channel, 5-Channel, 6-Channel, and mono 1-Channel subwoofer amplifier together in any number of combinations to achieve perfect sounding audio.