Make your multi-speaker system sound spectacular

Alpine's PXE-X121-12EV amplifier and digital processor is a versatile upgrade that'll deliver high-fidelity sound to almost any car audio system, aftermarket or factory. The amp features 12 channels with staggered output power and DSP control to accommodate multi-speaker systems found in many newer vehicles that have a mix of tweeters, small and large midrange drivers, full-range speakers, and subwoofers. For example, this amp can drive four dash-mounted tweeters and small speakers with 25 watts each, six front and rear door component systems and speakers with 50 watts each, and a subwoofer with up to 200 watts from bridged channels 11 and 12.

DSP control via Bluetooth® app

You can control the PXE-X121-12EV's digital processing wirelessly with your iOS or Android device or wired to a Windows PC via the supplied Bluetooth adapter and USB cable. With the app, you can stream music as well as control the amp without needing a receiver. You download the free Alpine Music App for iOS or Android device from the Apple APP or Google Play Store. The PXE-X121-12EV Pc app for Windows is available from Alpine.

Mixing, matching, and stereo placement

Matrix mixing allows for the summing and management of all the input and output signals. Fully adjustable high-pass, low-pass, and bandpass filters on every channel match the sound to your speakers. 31-band equalizers help achieve the perfect tone, allowing you to smooth out any hot spots or dips in the frequency response of your vehicle's interior. The delay feature lets you center the stereo image for your listening position.

Product highlights:

12-channel car amplifier with digital signal processing
- 25 watts RMS x 4 + 50 watts RMS x 6 + 100 watts RMS x 2
Hi-Res Audio certified (frequency response: 20 - 40kHz)
operating voltage: 9-17V
- compatible with start-stop vehicle systems
DSP adjustments and settings made via Bluetooth device, Windows PC via USB
- download Alpine Music App for iOS or Android device from the Apple APP or Google Play Store
- download PXE-X121-12EV Pc app for Windows at Alpine.com

Adjustment details:

12-channel 32-bit 300 MHz digital processor
31-band EQ with fine tuning
adjustable high-, low-, and band-pass filters (20-20 KHz)
- selectable filter slopes (12, 18, 24, 30, 36, 42, 48 dB/octave)
- selectable filter characteristics (Butterworth, Bessel, and Linkwitz-Riley)
delay: 0-20 milliseconds (0-273")
phase adjustment: 0 or 180°
music and nav sound mixing
full-range outputs available for larger systems

More info:

includes Bluetooth adapter and USB cable
inputs: 2 RCA preamp, 12 speaker-level, optical and coax digital, USB
- speaker-level inputs handle up to 10.6V (28W)
preamp outputs: 2 RCA
wiring and hardware not included with amplifier
- 8-gauge amp wiring kit with fuse recommended
fuse rating: 30A x 2
dimensions: 10.32"W x 2.33"H x 11.3"D
warranty: 1 year
MFR # PXE-X121-12EV
Item # 500PXEX121
California customers: www.P65Warnings.ca.gov

What's in the box:

12-Channel amplifier/processor (two installed 30A ATO fuses)
6" 26-Pin Output harness
6" 24-Pin high-level input harness
6" 10-Pin power/ground/remote input harness
KCE-800BT Bluetooth module with attached 6" RJ-45 cable
16' USB-A to USB-B cable
2 Mounting brackets
Four 3/4" screws

ALPINE

Alpine PXE-X121-12EV