The systems are listed alphabetically. There may be missing prices or other features. Any additions, corrections or comments are welcome. MQ A McIntosh MQ101 or MQ102 equalizer was part of the system design and was required for extended bass response. Black grille cloth.
Acoustic material is located around tweeter.
Tweeter fuse is located at the back of the cabinet. XL1W Bass Loudspeaker System Bass speaker floor system for use with a pair of XL1's. This is not a subwoofer but extends the bass response to be similar to the XR16. Aluminum ring for woofer. Black grille cloth.