I just bought a kicker zx750. Now it's time for a sub. I had a jl w3 sealed on a zx 500 once upon at time. So I'd like something that just as clean and hard or more. Ive researched for weeks and still can't make up my mind. I'd like to keep it around $300 for a single sealed 12. I've heard type r and sundown sa Maybe it was the wrong box but I found them muddy. Maybe an idq? Any suggestions would be appreciated thanks.