515-8g in A8 VOTT clone cabinet

[aeyb701]

Hi guys:
I'm thinking of replacing 416-8b's with 515-8g's in my A8 clones:
http://s168.photobucket.com/albums/u...t=P1010011.jpg
I know the 515 is designed for horn-loading but in a flush-mounted system will its reportedly increased sensitivity give more low-freq. oomph to a system which also has an 802-8g?
Will the bolt holes match up? The spec sheets are not super clear on that.
The 802 is way more efficient than a direct-radiating 416, i've learned from experience, and needs some attenuating or higher Xover freq. to make it more balanced.
I read that he 515 has about 4-6db higher sensitivity than the 416, but a higher LF. Still it's fun to tinker.
Thanks ahead of time.
Jon Archibald

[aeyb701]

...PS..I should have written the 515 is more sensitive than the 416 but has a higher LF ROLLOFF point.
Jon ***

[Old Guy]

IMHO it'll be louder with less bass.