I have a Forte model 3 amp that I like very much but I was thinking of trying a Jeff Rowland amp with my Newform Research R630 speakers. They are both said to be very musical and have a nice midrange. Does anyone know what the high frequencies are like for the JR? I've read that they are rolled off a little. If so, how would they compare to my Forte model 3, which has an open, airy sounding upper end? They both are said to have good control of bass as well.