Trying to get a little better sound out of the ride (on a budget) but I'm largely a noob when it comes to amps and such. I've picked up on here that the PBR300X2 is better thought of than the 4 channel variant. Really? Is the difference that big? I've not picked out speakers yet, but just came across a PBR300X4 that I could trade for. As of right now I plan on running a 2-speaker only setup. Can I use a 4 channel amp with only two speakers? I was told there may be a switch or something. Would I be better off holding out for a PBR300X2? Thanks.