Bi wiring advice

The catch is that my Crystals have bi wire speaker terminals (one of which is missing). So what I've done is hook up only one of the Crystal's +ve and -ve terminals to the speaker.

Did you mean to say the AQ Crystals have bi-wire speaker terminations?
If so, you could simply use the AQ wire for your speakers as it is already bi-wire ready and have the missing ends reterminated.

I guess with your present setup, one could just tape off the unused ends and make sure they are not touching any speaker or amp posts. I am assuming the AQ wire has one of the biwire pairs intended for woofers and one for tweeters so make sure that is correct.

As far as using the same type wire-I think that is up to you. I use the same brand but different models in my bi-wire setup as the woofers supposedly benefit from the thicker gauge.

Others may chime in here. In the end, only your ears can determine if using a bi-wire and what way you implement it is of benefit. I have had experts tell me it usually only benefits speakers with a load variance that is pretty significant. My load is pretty easy, but I heard a nice difference when I went to a biwire setup.

I've repaired my AQ's missing spade lug. But since my AQ is a single bi-wire set (apparently I lose the benefit of magnetically isolating the condoctors) I'm running both of the AQ's +ve lugs to the speaker's +ve LF post and both -ve lugs to -ve LF post. With my Transparent musicwave hooked up to the HF speaker posts, I effectivily end up with 2 seperate run bi-wiring.

I tried using only the AQ's as a bi-wire set up, but find the Misicwave / AQ combo sound better.