Small Advent drivers parameters needed

Hi All,

has any of you has the T/S parameters for Small Advent drivers?

I have an old Small Advent but the boxes are in very bad condition. Beside building a new box for it, I'm thingking of building something different for it (if only I knew the parameter to play with it...)

Or, any other idea to improve/tweak the speaker, beside building the new box?

Thanks,
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David