What is Comp/BMX?

[reed dollaz 10+ year member]

i dont have the manual to my headunit anymore but there is a function for Comp1, Comp2, BMX2, and BMX2. what are these settings used for? its on a 6900UB

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[probmxstyle 10+ year member]

i dont have the manual to my headunit anymore but there is a function for Comp1, Comp2, BMX2, and BMX2. what are these settings used for? its on a 6900UB

Just various compression presets. I have them on my pioneer and it made my speakers sounds like crap whenever I had them turned on. Check out your manual on pioneers website if you want the specifics.