This. IDQ 12s are some of my favorite all time subs, regardless of price. Get a pair and be done. These produce way more than "decent" sound. Some of the best sounding bass you will hear when set up properly. You don't necessarily have to spend the extra $60 if you ask the right person.I was really looking at 2 image dynamics idq 12s. I think I could spend the extra $60 to get two. How would 2 idq 12s sound compared to 4 8s? I can get 4 8s for $60 cheaper. Honestly I want it to hit lows pretty good but still maintain a decent sound. I heard a hdcs10 and didn't sound bad at all too me. Got down pretty hard too.