when i turn my pioneer p7800 up it will skip, i was told it is the hz from the sub skipping skipping the lazer and id have to get a deck with a lower hz?

any info would be good

 

Try mounting the deck better!

 

You can also try atttaching a backstrap to the cd player right now to secure the back of the cd player from moving around like a bowl of jello in a earthquake. If the cd player is mounted either too secure or or not secure enough, this also can make the cd player skip when the amplitude of the sub at that frequency becomes an issue. Try that first.