I have a pair of KG 5.5's, One horn, 2-10" woofers. These are some of the best over all speakers I have heard, with the right amplification (150 wpc minimum to do them justice).
They have no lack of bass, as I can knock the dust of the ceiling at high volumes, and a picture off the wall occasionally.:thmbsp: Very accurate speakers for all types of music.
I would experiment with amplification if you get the chance. A good 150wpx+ amp made my 5.5's turn into a almost totally different speaker, moving them from very good, into the excellent+ range.
I know they are all very efficient, and supposed to play loudly with a few watts, but believe me, they need good power to sound their best.
I paid $399 ea new in '94, so you did good.
I think the lack of deep bass is akin to the Heresy, and the early Lascalla's, but I think Klipsch more of less addressed the issue on the later versions.