Yamaha DTXpress/DTXplorer/DTXtreme

Hi all:

I posted this over on teh DTX board and thought I'd post it here too. 
I know from what I've researched so far that everyone says that an 
amp or powered speaker with a 15" woofer is the only thing for 
something like the DTX drum set.

HOWEVER...

I notice that Musicians Friend has the Rogue Roller PA system on sale 
for $179. I know it only has a 10" woofer, BUT, thats a great price 
for something that portable. It has wheels and a handle built-in.

http://www.musiciansfriend.com/srs7/search/detail/base_pid/602201/sour
ceid=00390711607553811564

Would it be ADEQUATE for practice and small venues/rooms seating no 
more than 75-100, i.e., church auditoriums? I'm sure it would be WAY 
better than the Fender Bullet Reverb I'm currently using.

I can't afford a lot, and things like JBL Eons are WAY outta reach. 
Even most keyboard amps are over my budget. 

Thanks in advance.

Tony