Hi, I've got a BKElec 100W panel and 12" Speaker on their way - intending to make a Q100e/RTP12/RELinquish/Relax/etc clone (take your choice......). One small fly in the ointment, the depth of the design isn't exactly ideal for the location in my movie room, something nearer 300m would be handier. Can I maintain the other dimensions of the sub enclosure and use polyfil to make the enclosure "appear" bigger, or do I have to adjust the dimensions to maintain a 50 litre enclosure volume ? If the volume is smaller than 50l, what will the effect be ? Thanks in advance, Sean G.