Very impressive. How did you place them in your room? Do you have pictures of the system? I'm sure they are very efficient and do not require much current. 12 guage twisted pair cord will do just fine. If you are using mono amps keep them as close to the drivers as you can to keep the wires short.
It is also great that you recognize the delay. It was always one of the problems the K Horn suffered with. The woofer was 4 feet behind the rest of the loudspeaker. Digital cross overs have made full range horns a much more attractive proposition if you have the room for them. Where are you crossing? Have you impulse tested them at all? It would be interesting to see if there was any spurious resonance in the bass horns. If you can find it you can fix it! If I play a 20 Hz test tone through my system the whole house comes alive:) Fortunately the woofers do not but I made these elaborate front grills for them which I finally tossed because there was no way I could keep them quiet. 10 hours of work down the drain. Live and learn.
It is also great that you recognize the delay. It was always one of the problems the K Horn suffered with. The woofer was 4 feet behind the rest of the loudspeaker. Digital cross overs have made full range horns a much more attractive proposition if you have the room for them. Where are you crossing? Have you impulse tested them at all? It would be interesting to see if there was any spurious resonance in the bass horns. If you can find it you can fix it! If I play a 20 Hz test tone through my system the whole house comes alive:) Fortunately the woofers do not but I made these elaborate front grills for them which I finally tossed because there was no way I could keep them quiet. 10 hours of work down the drain. Live and learn.