Hi Uncle Dave,
You bring up an excelent piont !!
If have heard these ,but only with a "CD" at a local store. They sound "full range" , but , your right about the "peaks and bottom end of "real music", I`m not sure if they could hold-up under the strain.
However they must be better than the speakers that are usualy found in "arranger KB`s". They do not have the "twinkling" highs that you might find with other speakers but do have a good "all-around" sound. I had thought theses might work as an "easy" carry for those needing a set of "monitors" while using somthing more substanial for there actual performance. To be honest I would not bring these "into battle" without good mains to perform with !!!
I hope this helps, take care !!
jedi