Just remember that if you wire up two or more speakers (doesn't matter whether it's biwiring one speaker or wiring several individual speakers in parallel) the resistance of the ciruit they make can be very low, and certainly not to be risked if you are fond of your amplifier. Biwiring is ok if the amp can take the low resistance provided, but no amp will like the absurdly low resistance it would be possible to get by wiring up multiple speakers in parallel. It would be another matter if you wired them up in series, then the problem would be an enormous resistance and your amp wouldn't be at any risk of damage but would struggle to drive them at all and it may end up sounding rather pathetic.