Which reminds me, anyone who believes single driver speakers don't have good bass should hear Bob's FT-1600 speakers. After he played the first couple of tracks of the Mussorgski "Pictures" organ transciption I said "OK, now let's hear it without the subwoofer" and he responded "The sub isn't on". The combination of the enclosure design and the simple bsc network in Bob's speakers restores the octave-to-octave tonal balance I am accustomed to hearing with well designed speakers that take into account the quirks of the drivers that are used in them.