How to house-train your cat to stay away from your speakers and subwoofer in 5 easy steps:

step 1: Purchase a cd of "animal sounds."
step 2: Position cat 1 meter in front of subwoofer and front speakers.
step 3: Turn volume knob as high as speakers can play without distortion.
step 4: Insert cd, search for track entitled "dog growling and barking," and press play.
step 5: Watch your cat never come near your subwoofer and speakers EVER again.