Here's info from a 1/1/2007 web page. Specs look roughly the same, though not as detailed as above.
- - - - - - - - -
These exceptional loudspeakers share the same acoustic properties as the original Allison Ones, first manufactured by Roy Allison in 1974. Improvements include fine furniture cherry cabinetry and Roy Allison-redesigned tweeters, midranges and cross-overs.
The Allison One is designed for placement against a flat wall but not in a corner. Essentially a triangular column, the Allison One offers two faces at 90° angles from one another, or 45° from the wall, each populated with a tweeter, midrange and 10" woofer.
Crossover Frequency: 350 Hz ; 3750 Hz
Impedance: 8 Ohm
SPL: 91 dB
Amplifier Power: 30-200 Watts / Channel
Frequency Response: 32 Hz - 25000 Hz
Dimension (HxWxD): 41.31" x 15.75" x 11.25"