12" L7 sealed box shape question..

Will building a tapered sealed box to fit under the Mach460 tray sacrifice sound quality over a square box?
The tapered sealed box will measure front = 13.5" tall 24" wide, back 7" tall 18" wide and 16" deep equaling roughly 1.5" cu.ft.
A RF 1001bd will be powering a single dual4ohm s12l7 wired @ 2ohms.

Thanks in advance for any input.

Nope as long as you have enough airspace and the box is well sealed you shouldnt notice a difference. ANDY

Thanks!