Well i'm gonna tell you my experience with PA2400DB....memphis is a higher quality brand...less distortion, and probly much more efficent...the other amp im not sure what it's rated might put out more power...but is more likely to over heat and clip than the memphis is....
I sealed the port making it in essence a sealed box and it is 2twice as loud.
It really loves the low notes 40 and under,but the higher bass notes it seems to taper off and not hit as hard.I can barely hear after Late night tip.
Well cause mine are firing forward from the trunk it seems like it was causin some cancellin when it was ported.........but now that it is sealed off it slams hard and cleaner when up loud.Remember my tuning was off cuase the trunk is bigger then I first thought(lol).Its around 7-7.5cubes after everything is taken into account:crazy:what l7's do good in a sealed box?? Isn't the box like 6cb ft