Pubul57, the 1.6 would indeed sound very nice on strings and most things. There is of course some trade-off, and I think you probably nailed it - they don't dig down real deep. On the other hand, their pitch definition in the lower registers is superb. They have a natural enough tonal balance that imho they do not "need" a subwoofer. What the Maggies have is a broad, gentle, even subtle dip in the upper midrange/lower treble region that psychoacoustically balances out lack of very deep bass. That being said, restoring the missing deep bass is benefical as long as it's done unobtrusively.
Blending subwoofers with a dipole is a challenge, and one that I have done some work on. If you'd like more information shoot me an e-mail, as I don't want to hijack the thread.
Duke
dealer/manufacturer