Sub-woofer fast enough for Horns?


I wonder if anyone has tried matching a sub-woofer which has the speed to match with Horn Speakers? I tried Rel-Storm but not good enough!
luna
look for a front firing sub with slightly wider band, center the sub forward if you can this will help with timing.

Q
I would have a look at the Zu Audio subwoofers. I own one of their discontinued models, the Mini-Method, and it is lightning fast. It blends in seamlessly with my Essence speakers. Their new models, the Undertone and the Submission, are supposed to be even better than my little subwoofer. The only way I would part with my sub would be to replace it with a larger Zu sub... even then, I might just keep it as a backup.
I own both a Revel B15 and an SVS SB13 Plus(95% same as SB13 Ultra) and I think they both are very fast. Very musical subs with punch and timing. All I own is horns and both of these subs keep up very well.

I bet a JL Audio F110 and F112 are both very fast.

Bill