Charles, sure there's a difference; connecting two channels from the same amplifier into the two separate sections of a speaker does essentially nothing of significance. The one main power supply section in the amplifier is sending its power out through two sets of output transistors rather than one, but that doesn't double the maximum power available(as some imagine)or increase it in any amount. The starting requirement for bi-amping is two separate amplifiers with their separate power supply sections, but more is needed: an external crossover preceding the amplifiers(with the internal speaker crossover removed or bypassed)is necessary so that each of the amplifiers is fed only a restricted range of frequencies for amplification. This full procedure has some benefits but is very rarely done in home setups(it's seen in some professional sound systems using megawatts). Doing less is of no audible significance and is a waste of time and/or money.
