Dial in and save your perfect sound using PXA1000.5 or PXA400.4 Amplifiers! This adapter allows you to use KICKER Powersports Tune software for limited DSP functions! Enhanced Tuning for PXA1000.5 and PXA400.4 Amps Tune these PXA Multi-Channel Amps from your PC for an enhanced listening experience! The PXAPT DSP Programming Adapter offers that capability by connecting you to KICKER Powersports Tune software, allowing you to control EQ and crossovers independently per channel, or combine them with channel linking. Added parametric EQ dials in your system the way you want to hear it. Advanced crossover controls let you pick your topology, slope, and frequency of choice. Create and save tunes for multiple applications. Advanced Tuning with KICKER Powersports Tune (KPT) Software Level up your sound with your new or existing PXA.4 or PXA.5 amplifier by unlocking the advanced tuning capabilities with the PXAPT programming tool and KICKER Powersports Tune (KPT) Software. Fine tune your listening experience with EQ and crossover control of each channel of your PXA.4 or PXA.5 amplifier.