One is all u need really
Crutchfield Customer Review (What's this?)
This box slams... For the price you cannot ask for more. I'm from the 90s era of installing systems and you could never get this performance at this price...I'm powering it with the JL RD 500/1 and the amp really drives this thing wild. I've been throwing music at this thing all day and it loves it all. I also had a w6 before this and although this w3 doesn't provide the excursion of the w6, it still comes close to fooling you. It's like the baby brother that's almost just as strong. The box is sleek and fit flush all the way back in my 2013 Corolla. Wonderful JL audio product.
Pros: Big, tight, sealed bass sounding keeps wanting power and no bottoming out. Accurate punch with nice blending bass notes. Small compact size and sleek box look, great price
Cons: It will make u want another one.... Wish there was a dual version of this... Lows are astounding for a 10, but a little more may be desired...