after 40+ years in car audio, I've seen processors develop, peak and dissapear like old gym socks.
the Epicenter was leagues ahead of its time. in Today's world of DSP, if you still have and odd acoustic/pseudo-acoustc "odd hole" in bass and lowest range of the low end, the Epicenter can help. howeve its more of a band-aid than an acoustic fix.
Don't misunderstand I have an early 90's retro build with both the epicenter and the ESP-1 center channel unit as well. Love them both for what they are and how they fit in car audio history.
All that said what are you trying to accomplish or fix? what other amps/equipment are you planning? Whats the overall system goal? Audio control is GREAT stuff. and they have a couple-5 different pieces, including DSP packaged inside a few amps. Might be able to get a 2-fer with more/better amp power and possibly elminate pieces and reach your goal in less footprint.
~Rob