In regards to the EP series, I don't see other manufacturers offering the same technology using DSP controlled chips with the same power.
Paradigm does, the DSP series and they are considerably cheaper. The 3200 can be bought for nearly half the price of the 500 or the 3400 for $300-400 less than the 500. I think that is the only real competition. I have not seen any other manufacturers using DSP, but do they need to? The EP350 works incredibly well, doesn't use DSP and is priced right in comparison to the competitors.
Maybe Axiom needs to bring out non-DSP versions of the 600/800 for those that want to experience the upper end of Axiom subs without the higher costs associated with their DSP technology.
