Should I buy this Crossover?

[amason]

I want to get the best performance I can out of my front speakers. I had 7.1 surround sound setup but I moved and the setup is now 5.1. I have Klipsch Synergy speakers and I currently have them bi-wired. One set coming from my receiver and the other from my outlaw 7 channel 125 watt amp. Since I have read and notice very little, if any improvement in bi-wiring so I was looked into bi-amping. I came across this crossover to separate the low and high frequencies on Amazon. http://www.amazon.com/exec/obidos/tg/detail/-/B0006GSEMO/ref=ord_cart_shr?%5Fencoding=UTF8&m=ATVPDKIKX0DER& v=glance I would like to buy this and use the 6th and 7th channels on my outlaw to power the front speakers. When I read about bi-amping they say to use separate amps but is using a multi channel amp the same? Will I get better sound with this setup because I can increase the gain for example on the low to increase bass to the way I like it? Sorry guys for the long post. Any help is very much appreciated. I am at work and don’t know my receive model off the top of my head, but it’s a Yamaha. If that makes a difference I will post it when I get home.