Just some thoughts. A good angled amp stand seems to really help the performer hear all the frequencies better. The expander does seem to enhance the reverb but actually all it is doing is changing the stereo phase of the reverb which makes it more centered and noticeble. The EQ is active so when it is on 5 it is neutral and when you go above or below that you are adding or cutting EQ. The KP-100s weighs a bit over 10 pounds more than a single JBL EON10 G2 but the KP-200s weighs about the same as two of those EONs.

Between your comments and Scott's I believe the bass response of the KP-100s must be significantly less than the KP-200s which has more than enough for my gigs. Probably a combination of power and larger speakers at the tradeoff of being nearly twice as large.

The idea of having cables plugged into the amp while transporting strikes me as a bit of a liability - you couldn't put the cover on (it fits tight) and there's always the risk of breaking the plugs. Just something to consider. Otherwise, congradulations on joining the KP Club.