I'm in process of reworking my A7 cabinet and while I have everything apart was thinking about changing it over to a three way and adding a good ribbon or cone tweeter to handle those highs in the 10K and above range,, I have never found the horn to be as clear or precise as a good tweeter,,
my A7s have the N-800E cross over with the 806A driver and 811b horn,, the woofer is the 416A and both speakers are in excellent condition,, I am the original owner,,
thanks
Derry