T-S parameters of old drive units?

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Does anyone know of any database giving the measured T-S parameters of vintage bass units? It's UK ones that I'm really interested in: specifically the well-respected Goodmans Audiom 61 and Audiom 81 units, and the Richard Allan HP8B and LP8B.

I intend to measure the parameters of the ones I have, so the existance of a database for me to add my own measurements into, for the benefit of others would be useful.

Thanks,
Chris Morriss.
 
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