Hi everyone! I'm elated! I just purchased a pair of Mackie SRM450's. http://www.mackie.com/Products/Active/SRM450/SRM450.asp
I've been wanting these for a LONG time now. I remember that it was Uncle Dave & Donny Pesce who had first recommended these PA's to me (almost a year ago), so I want to thank you. I must admit that I'm currently in a state of SHOCK! It seems like my whole music setup has changed completely in just the last 2 weeks. I feel like I'm living a little on the edge, especially because I'm doing all this 'right before' the holiday gigs. I'm desparately working to gear up the PSR2000 to handle it all. Ahhh, I guess I love to live dangerously!

I plan to just take the PSR2000, for those small senior type venues, then take one Mackie 450 for medium sized gigs, and reserve the second 450 for larger wedding & corporate parties.

Uncle Dave and/or Donny: through your professional experience with the 450's, can you please advise me what the maximum number of people/room size the following scenerios will handle?

1) PSR2000 only
2) PSR2000 & one 450 PA monitor speaker
3) PSR2000 & two 450 PA monitor speaker

Uncle Dave: One more IMPORTANT question. The outputs on the PSR2000 are 1/4" unbalanced (so I was told by the salesperson) and the inputs on the 450's are XLR (balanced). The salesman highly recommended that I purchase a Direct Box: Rolls Matchbox DB25: http://www.rolls.com/new/db25.html

to convert the unbalanced outs of the PSR2000 to a balanced signal in order to match the balanced XLR input of the 450's. He advised me that PSR keyboards have a reputation for potential signal looping interference (noise, hum) if it's unbalanced outputs are connected directly to a balanced XLR input (SRM450) without a direct box as mentioned above.

Uncle Dave, I like to hear your advice and recommendations on this.

Thanks, - Scott