I recently got my first comp set. They where used. I hooked them up to my head unit. They are working just not much came out of the mid bass speaker. Is this do to lack of power from the head unit? I have an amp to power th just do not have all my cables to connect it. I was excited and wanted to here them. Should I expect better results once connected to my amp?

What components and how do you have them wired up?  You could just have something wired wrong, otherwise the mid that's lacking could be damaged considering they are used.  I ran the PG RSD's and the Bravox CS60K's off HU power for quite awhile and it had a surprising amount of output IMO for the modest power applied.  Unless you're trying to have them keep up with a pair of 18's or something they should be able to give adequate output even on HU power.

i am know this is not the correct way to connect.

AQ6.5Comp set

i just pushed the input speaker wire to the crossover into the connector that came out the car door.

At first I had the input and tweeter backwards on the included crossover.

Once that was corrected the mid began to work. just not near as noticable as the tweeter/high.

could I have caused damage to the crossover upon initial connection?

Head unit Alpine CDE-136BT

I highly doubt you damaged anything, there's just not enough power in the HU to fry anything in a passive crossover and all the components that make the crossover work don't care which direction the signal travels through them.

 

I would triple check and verify with absolute certainty that you don't have them wired out of phase.  Doing so would definitely affect the output.  Try switching the wires on just one mid and see how that works.

I will thanks Alton.