1) What is the difference between "front firing" and "Closed Box, down-firing drive" sub. I guess front firing are more expensive so better.
2) These are specs for 3 different subwoofers in rel acoustics line. Does it matter which one I chose? What difference would it make?
a) -6dB at 28 Hz,
b) -6dB at 30 Hz,
c) -6dB at 32 Hz
3) Any experience or reviews on Rel Acoustics Sub Woofers?
I am considering pairing it with KEF LSX. Which model would be good?