400 Watt Amp Sounds Better than 800 Watt Amp

I recently bought 2 12" subs in a box with a 400 watts amp but I went and got another amp and it is 800 watts. The problem is that the 400-watt amp sounds better than the 800. I've tried everything check the ground, power, even the speaker polarity. I tried playing with the x-over but it still sounds a little weak. Tried messing with the gain but that just makes it sound worse when it is going full blast. I've also tried bridging it but that just turns on the protect mode and makes the amp heat up faster. Could somebody please help me??

g_dep1707 wrote: The problem is that the 400-watt amp sounds better than the 800.

This is a really easy problem to solve:  put the 400 watt amp back in.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

what are the brands on the 400 watt amp and what is the brand of the 800 watt amp2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

2007 USACI World Champion

2007 World Record

2006 USACI Finals 2nd Place

but the 400 has a really really bad overheating problem

the 400 is visonik and the 800 is volfenhag