FixapartCAR-AX01 Subwoofer Converter

This made the sound of the speakers from the head unit worse, it made them sound tinny. I don’t think the sound processor is that great, cheap product, I’ve returned it.It does do what it says, it will create a crossover between the head unit and before the subwoofer amplifier. Allowing you to change the frequency it outputs, good for different powered subwoofers and getting the sound right. But as I said, it made the bass sound tinny and the audio less full. Going for a more expensive crossover and see if that sounds any better.

I run a mobile Disco, I have 4 active subs but wanted something a little lower but having full control, I purchased one of these, then 2x passive 1000w 12inch JBL (car!) Subs, a 2000w rack amp and fed a booth output from the mixer. All I can say is...on the first night... the floor moved, no kidding things were jumping up and down. it gave a new depth to the sound quality. Over the top? maybe but I dont care. in a few words.... Did the job great.

Inexpensive Bass filter. Best way to only amplify the parts of the music you want to hear from your sub woofer

Terrible, didn't work. I tried several different 12v supplies and plugging it into the amp it's self and all I got from it we're distorted mess and the occasional pop and click.Would not recommend

A little distortion but nothing some ferrite won't fix