I have a pair of RE Audio RE-10's that I bought back in 2003. They're currently sealed in half a cube each in my girlfriends car. I'd like to get some more output from them and go ported, but I can't find the specs for the old version anymore. I was going to try a box that was 2 cubes and tuned to 32Hz. Does that sound about right? Would a 2x10.5" port be plenty for lower wattage subs like these? They will running off of 2 channels from an Alpine PDX-4.150, so 300w RMS.