What connectors for DIY cable?


I want to vertically bi-amp my speakers to find out if I'll get any improvement that way and would like to find a way to at first try it with some cheaper wire.

My amps are Electrocompaniet AW220's and the speakers are B&W 703's.

I've got 50ft of the Home Depot 12 gauge extension cord here that has been discussed but have never made my own terminations. Went to Radioshack but the two guys that were there today were pretty lost on this.

Can any of you guys recommend any plugs/spades that are affordable and easy to install?

What would be the best way to connect? Solder or crimp?
Would like to get some connectors pretty quick, so if you can suggest any places that are found in most cities that would be great.

This surely isn't the best way to find out if I can improve the sound by bi-amping, but it's a low cost experiment and hopefully worth it.

Thanks for any input.
krauti
As usual you've been let down by the Shacks uneducated staff. Their advertising claim: "You've got questions, we've got answers" is seldom true as you found out. When shopping the shack you need to look at the catalog (do they still have one?) or the website first, find the part number and say "give me x amount of this stock number" to the shack "rep". Here is your part number: 278-311 a pack of color coded(black/red) spades for 10-12 gauge wire. $5.99 for an 8pk.

Here is a link to it on their site: http://www.radioshack.com/product/index.jsp?productId=2103477
Yeah, tha shack truly seems to be tha shack. But in the end I found some connectors there that worked and the next task is to get that unruly 10 gauge wire somewhat straight and put those connectors on.

Should that work then I'll see if it's worth getting some better cables.
I prefer a spade over bare wire since wire can fray, oxidize, and become loose. Also the post can damage the wire due to sharp edges. FWIW