ADS L710 speaker spring connector repair experts

I have a nice pair of ADS L710's (original owner) that cut out periodically on one speaker. I am pretty sure the +/-spring clips on rear have become loose somehow and need replacement or repair. (If I push on either of them sound returns) There does not seem to be any way to remove the clips from the rear (no screws, etc). I'm guessing you have to remove one of the woofers and get at the clips from the inside of the speaker. Does anyone have experience with this repair and have tips on difficulty? I'm fairly handy but don't want to pull out the woofer without some sense of what I'm getting into. Thanks for any help.