Im looking at the velodyne CHT 8 sub. I hear good things on the forum regarding the CHT10 - but is the CHT 8 any good? I dont have the space for the CHT 10. also- as its forward firing- it is safe to place the back of the sub a few inches away from the wall. If its rear ported it going to cause a problem. I have space limitations in my room so placing the sub in different locations is serverly restricted. how does the CHT 8 compare against the MJpro50. How much is the CHT 8 roughly?