Tony & Glenn: Thanks for your insightful comments. Your concerns re: iem's are the same I've been having. As a solo entertainer, an essential element to my show is the back & forth repoire I develop with my audience, so I cannot afford to feel 'removed' or seperated from them.

Is this the Carvin Spot monitor model you use?: http://www.carvin.com/cgi-bin/Isearch.exe?CFG=2&P2=PM5-B&P1=MON

How good is the Carvin Spot's bass response?

I'd like to know how the sound quality compares to the 'built in speakers' on my Yamaha PSR2000. I realize the Carvin Monitor signal would be mono (unless you utilize two Spot monitors), but it appears that both the volume & clarity of the Carvin Spots may be better than the speakers in the PSR2000 because though both the Carvin & Yamaha built ins are both 2 way 5" and include a tuned bass port to increase bass response, the Carvin offers 125 watts of power while the built in Yamaha's are only provide 12 watts a piece. I would expect that using ONE Carvin Spot monitor would produce more volume and at equal sound quality to the ones in the PSR2000. At only 5 lbs, the Carvin Spot Monitor sounds like a good solution for monitoring purposes when gigging with an arranger kb without speakers.

Thanks in advance for additional comments and feedback about going this route.

Scott