Questions about the newer Allison Model 1 and Model 4 Speakers?

bought some allison 4's without speakers, trying to match up.  i know the 3 way tweeters do not work in the 2 way systems however does anybody know the ohm's of the original allison tweeters in the allison fours, were they 4 ohm or 8 ohm as the speaker as a whole was an 8 ohm speaker, also the new allison tweeters ACD-2 seem to be 150 watt tweeters, seems a bit high since the original allison four speakers were 150 watts peek.  any advice, thanks

Great job mlsstl guess they did retain the 8 ohm in the newer model, most likely the same in the model four. they are truly wonderful speakers. 

Checkout the saved allisionacoustics.com web pages on the internet's "wayback machine" at web.archive.org. There are quite a few captures of Allison's web pages to about 2008. 

Here's info from a 1/1/2007 web page. Specs look roughly the same, though not as detailed as above.
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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.

Five Year Limited Warranty

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"

I believe those specs are for the older model allison speakers. It is the newer models circa 2002-2006 i believe.  

Here's the Allison Four specs I found:

Specifications Speaker complement:One 8" (203 mm) woofers;Two 1" (25 mm) Convex Diaphragm tweeters

Crossover frequencies: 2 kHz Crossover network: LC quarter-section. Air-core tapped choke and polyester capacitors are used. Three-position control switch (accessible from front) supplied for selection of system acoustic power response, from nominally flat to concert-hall balance slope.

Impedance: 8 Ω nominal (6,5 Ω minimum at any setting of balance switch) Efficiency: better than 0,7% when placed with back against wall.Minimum amplifier power: 30 watts per channel to produce 100 dB sound pressure level in most domestic room environments.

Acoustic power output capability: 0,5 acoustic watt minimum , over full frequency range, with 70 watt peak input.0,25 acoustic watt minimum in lowest octave, with 35 watts input.System resonance frequency: 52 Hz, nominal Effective system Q: 1.0. Low-frequency response -3 dB at 41 Hz, -6 dB at 34,5 Hz, when placed close to center of large wall. Low-frequency output increases when system is placed in typical positions with respect to side wall and floor or ceiling.

Enclosure: Stabilized Radiation Loading sealed acoustic suspension design.Outside dimensions: 11" high by 19⅜" wide by 10" front to back (279 mm by 492 mm by 250 mm). Internal volume: 1,265 cubic inches (20,7 liters).Material: High density particle board veneered with walnut, oiled finish

Weight: 23,5 lbs (10,7 kg) Full Warranty for Five Years

Found this with a bit of Google searching. This is for the Allison Ones.

Specifications Speaker complement:Two 10" (254 mm) woofers;Two 3½" (89 mm) Convex Diaphragm mid-range units;Two 1" (25 mm) Convex Diaphragm tweeters

Crossover frequencies: 350 and 3,750 Hz Crossover network: LC half-section at both crossover frequencies. Air-core chokes and non-polar computer-grade capacitors are used. Three-position control switch (accessible from front) supplied for selection of system acoustic power response, from nominally flat to concert-hall balance slope.

Impedance: 8 Ω nominal (7 Ω minimum at any setting of balance switch) Efficiency: better than 0,7% when placed at floor-wall intersection.

Minimum amplifier power: 30 watts per channel to produce 100 dB sound pressure level in most domestic room environments. Acoustic power output capability: 0,5 acoustic watt minimum , over full frequency range, with 70 watt peak input.

System resonance frequency: 45 Hz, nominal Effective system Q: 1.0. Low-frequency response -3 dB at 35,5 Hz, -6 dB at 29,5 Hz

Enclosure: Stabilized Radiation Loading sealed acoustic suspension design.Outside dimensions: 40" high by 19" wide by 10¾" front to back (1002 cm by 483 mm by 273 mm). Internal volume: 2,550 cubic inches (41,8 liters).Material: High density particle board veneered with walnut, oiled finish

Weight: 67 lbs (30,4 kg)Full Warranty for Five Years