Hi Beakybird
At this point I am sure you are hooked on the stereo sound, and for good reason: it plain sounds a LOT better than mono. Thats the way these Yamaha keyboards are designed.
The thing thats in our favor is that we can try things out for 30 - 45 days from a lot of companies. This is what I plan on doing with the PSR2100 when they come out. If the sound is not as good as I expect then I will probably want to get a Tyros.
I tried my PSR2000 a couple days ago in mono. First just one JBL EON10G2 out the left and then out the right. This did not sound good at all. The difference between doing that and having two matching speakers is enormous.
We sound like we are in about the same boat, in that we want the best sound, at the cheapest price, and lightest weight. For me I might add with the least amount of screwing around.
I think we almost are wanting that imaginary speaker set-up that doesn't reall exist. So we have to compromise a little.
I know I for one cannot understand why anyone would want this set up for this and that set up for that. To me more screwing around.(for most jobs I am referring to ) Of course if we are going to play outside or in a large gym or auditorium, then yeah I can see the possible need for BIG stuff. It still amazes me some of the better performers will play out only with on board speakers for a small audience. I know I would not consider that. I want my music to sound better than a transistor radio. Now I may be more spoiled than most in that I deal with Lowrey organs, and these have a BIG sound. So, really, I've heard the PA80 and PSR2000 with only onboard speakers and I know I would only consider doing that for practice, and not because I really wanted to sound like that. Each to his own here though as always.
It seems for performers like us the choices would be the KP-200 (too heavy to suit me),two Barbetta 32c's (only 36 pounds and they should handle almost all playing situations, but a lot on the expensive side for me unless I start doing a lot more playing out), two EVa 100's (a lot of the guys like these, but my idea at least at this point is if someone is going to spend that much, and they both weigh about 43 lbs and only has 12" speakers, then why not get say the JBL EONS with 15's so you have the bass when you need it?) I know I personally would not want to carry around a seperate subwoofer or another amplifier. More screwing around to me. But that again is where I'm at. I see a lot of the guys doing this and if that makes them happy, I say go for it.
I think actually the best bet may be two JBL EON 10G2's. About 350 watts of great sound in two light weight packages.
These are just a few of my ideas.
Works for me anyway right now. I know exactly what I'd do if I were you, but then again I'm not you.
Sorry for the rambling but this is probably everyones biggest thing to deal with and this is my reasoning.
I think in the end its best to be able try this stuff for a period in actual working situations. Things can sound pretty different on the showroom floor. And I know that while sometimes it can be an issue for us, it is not a good idea to skimp on this stuff.
Best
Scott Langholff