Tekton Impact

Backsigns,
The woofers are secured by 8 screws, the midrange and tweeters are secured by 4 screws on each driver.

So you have taken the drivers out and seen inside then.

I have no desire to remove them, I enjoy listening to Eric's creations, not modifying them. Eric will accomadate any request his customers desire. I asked him before purchasing about several internal desires but told him after experiencing the Impact's that my choices would probably have ruined his final effort. 
You could call him and enquirer of anything on your mind. He was always the person who answered the phone when I called Tekton.

Since the Electrons seem to be the "official" baby DIs, just what do the former lack in comparison? The Electrons are smaller and lighter, but just a few dollars less. I have a room available that is 11'x10'....obviously too small for the DIs. I'm presently housing a pair of Zu Soul Superflys with a small subwoofer in this room.

Lula,
Lacking any auditioning of the Electrons I offer no comparison. From the specifications the Impacts have a higher sensitivity rating, so if you are driving them with an SET amp they would offer an advantage.
Having spent many hours of ultimate enjoyment I consider the Impacts to be the bargain of the century in high end loudspeakers.  Only experiencing them would allow you to ascertain a final purchase.