Review written by John from Lockport, IL

Pretty much a must-buy is you care about sound quality. Too be honest, if you spent the cash on one of the higher-end units like the X001, X100 or newer X305, you should automatically pick this up with it. Makes a HUGE difference in the type of sound you can output from the headunit. I previously owned (and loved) a Sony MEX-BT5100, the only Sony headunit with extensive EQ features, but this unit coupled with my X305 blows it away in that regard. Hard to not find a way to replicate a certain sound given all the options.

CAUTION THOUGH, remember to flip the switch under your HU when you install this thing. I forgot to, tuned it on, and it sounded TERRIBLE at first. Low frequencies sounded damaging to the woofers (loud buzzing and crackling) and high frequencies appeared distant and muddy.

Review written by Hafizulhadi from Balik Pulau, Malaysia

The pxa-h100 give new capability for my 9884. The time alignment set sound location correctly. The graphic and parametric eq give the best setting for my music. The imprint is good to.

Review written by Jeff from Santa Clarita, CA

This unit is just simply amazing.. I installed it on my X100 deck yesterday and WOW. The difference in the quality of the sound is like night and day. Much more clear.. The pre-out are a much higher voltage. There are hundreds of setting, including timing correction for perfectly tune you system... This is by far the most important purchase on my system