Hi, Just moved house and finally getting my 5.1 system set up again (no room for 7.1 despite having the speakers and receiver!) I have a Yamaha RX-V673 receiver for the 5.1 system. I also have an amp for my hifi (Pioneer A400). I'd rather not use two subwoofers, although I have them. Both are rubbish - an old Gale Storm 10 and a Canton 60CX from a rarely used system from the past. What are my options for connecting one subwoofer to both amps without problems. Only one device will be used at once, but I can't discount the risk of someone turning both on at once by mistake. Can I do anything with either of the subs I have now? Would any other (better) sub cope ok by default? I know virtually nothing about subs as I never liked them for music - until I tried them - and just reluctantly had one for 5.1/7.1 in the past. Thanks!