Well i have been playing threw a rumble 15 for the past 3 years so i figured when my mom cat deiced to spray on it i figured it was time for a new one. so i went and talked to my grandfather whose has been building home theather audio systems for 45+ yrs and he said he would build me a new one. so here is what he has planned 1x15 PHL Subwoofer. In a home built redwood and maple box. and on top a home built 400 watt head. Does any one have any idea or comment i might be able to rely to him that might make it sound better if it doesnt sound killer already.