That should be fine. If you are looking to make some nice bass on the cheap check out a Memphis PR12D4V2 with a SR1.250 amp in the right box it will go hard and you can have sub and amp for less than $300.
If you are still looking hit me up! King Kong Custom I can show you a portfolio of boxes we have built and let you hear some examples. I will build your box the right way and smoke anybody in town's price! The store is at 10722 Central Ave SE you can check out our facebook page if you want to...
We just had a DB Drag race a couple weeks ago... Hit me up if you are interested in organizing something Kurt at King Kong Custom Audio & Accessories 554-1025. We already have another competition lined up for the end of the summer and will probably have a couple more in between just don't...