After some mad hunting...
Most definitely there may be a better than ExEf...

Like ...gtkgep..
hell you can create effects..plugins.. for it.
gtk base..
the base audio requirement is soundblaster 16
which just so happens to work already...perfectly fine... for dosbox...even on the 770.
The system requirements are nice and low...
No impossible demands it seems...
If any effects processor looks JUST perfect for our devices from the 770 on up to the n900..
with a nice looking interface that functions with our devices...
that appears to have the best audio alternative for us...
and all around looks like the one which is the most hassle-free in getting it working for us
it's gtkgep.
http://gtkgep.prv.pl/
I'm rooting through the files for it as we speak..
This program I want to definitely see on our devices....


Pitchbox is a possible (conceptually odd program) one as well...it would necessitate the use of easy debian at the least...for the jre 5 (or higher) requirements...and would be limited to perhaps just the n900
http://www.pitchtech.ch/PitchBox/index.html