current equipment sony dvd player NS705V Yamaha Amplifier AX630SE B&W 600s x 4 B&W LCR60 x 1 Needing new sub Been looking at MJ ref 100 and rel quake. My local sevenoaks have them the same price but not sure which is better, mj goes lower and has the extra 20 watts but the rel has the slam mode which is quite appealing. Room is 10ft by 15ft and not sure what kind of power output ill be wanting. seriously in need of advice. not particularly clued up about subs. any advice would be welcome. cheers.