Alpine PXA-H100 - Audio signal processor Review

Average Reviews:

(More customer reviews)I purchased this along with the auto-calibration kit (the KTX-h100) for my new car system. I set the system up and tried it without calibration first, other than tweaking the fade and bass/trebel. I thought it sounded pretty darn good.
I then did the sound measurement calibration with the microphone and there was a BIG difference in sound quality (it lets you turn the multi-eq on and off, to hear before and after calibration results). So much so, that I found myself wondering if the stereo really sounded that much worse before. I had a friend who had heard the system before calibration listen to it again with Multi-EQ off to see if he thought it sounded the same, which he did.
Bottom line: this thing WILL improve your sound quality ALOT if you (like me) don't have the faintest idea what needs to be tweaked in an advanced equalizer to get your system sounding better. The biggest difference you will notice is that with this thing on, you can't really tell where your music is coming from, instead of before when, if you tried, you could clearly make out where the speakers were. In other words, it makes it seem as if the music is just appearing in midair around you, instead of from the doors in your car (at least for me). On top of that, the music just sounds much better, like a stock system vs aftermarket all over again. Of course I would not recommend this unless you have invested in good speakers all around for your car. I'm using Bostons and a Basslink II in the trunk.

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