Originally Posted by luke81

The volume is going to depend on the woofers you choose to use. If you have woofers that are happy in that volume and port, it will be fine. By placing the woofers like that you are loading the front of the woofer with a lot of extra pressure, so I'd suggest not using super junk woofers. This is the same principle as a bandpass enclosure works on, so you could build it as a bandpass with a little more tuning and experimentation.