Nope I'm defiantly not worried about voiding the warranty. There has been a lot of confusion to what the actual HP filter is on the BASH amps being shipped out. I will be ordering the amp from CSS here in Canada and they actually will modify the amp to your specification before they ship it out so I am less worried about what the actual stock amp is and more with what I would ideally need for this exact project.
Bob at CSS just supplied me with the current BASH500 manual and is contacting PE to see what the stock HP the amp is shipping with. I will post that information here once I receive it for anyone else who might be interested.
In the meantime I was thinking of modifying the amp to the following specifications:
2db of Boost
Boost Frequency: 20-24hz
Filter Fc: 16.2
Filter Q: 1.1
I will shrink the size of the enclosure to approximately 9.0ft3 and raise the tuning to 16.2hz? I'm still looking for confirmation on the tuning frequency and the HP (Fc) rolloff. I don't want to damage the woofer.