a) The drums compare
i30 have better drums.
b) Styles compare
PA-80 have similar styles as i30 but sounds more powerful and PA-80 styles are 8 parts comparing to 6 part i30 styles. (drum, perc, bass, Acc 1, 2, 3, 4, 5.)
c) Sounds compare
PA-80 have much better sounds now with o.s. 3 you can load triton programs (not drum kits) so the sounds are defintely better than i30.
d) SMF playback compare
Better in PA-80 dual sequencer helps a lot you can load the second song into the sequencer 2 while the song one is still playing in the seq 1, very great feature you can also play both seq. togather for 32 track songs :-) great feature.
e) O/P system compare
i30 rules PA-80 sucks big time if comparing to i30.
f) Sequencer compare
i30 rules PA-80 BSQ is not that good or powerful and not ver easy.