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peavey 1810

It's actually 1820. Regardless, I can tell you for sure that you have a black widow and 2 scorpions. The cab is 4Ω, so, although I can't confirm this, I'd wager that you have 2- 16Ω 10" and an 8Ω 18". I had a 3620 way back in the day, it was 4Ω, too, but if I ran just the 2x10 top section, it was 8Ω. The tens are (IIRC, I had the same ones in my 3620) general purpose speakers that were "meh" with full range bass guitar.
You can just check the DC resistance with a voltmeter, it'll tell you pretty close to where the impedance is. So are the speakers all you have, and not the whole cab? It will be a total shot in the dark at getting a good-sounding cab from any of them without lots more info than just their impedance. At least, I hope you have the original cab's compartment and port dimensions...
 
Actually, he may have the drivers from an 1810. They were before the 1820. I had two different ones, back when the earth was cooling. The 1810 was a smaller box than the 1820, by a smidge.

I stand corrected, never heard that model#. I know the Crate version was called 1810, and like I said, my similar cab was the 3620. I remember the 1516 also, I really did just make an assumption based on how the model #'s corresponded to the configs, so my bad.
Anyway, has anyone ever found T/S parameters on these older drivers? I think the newer ones can be found, but are likely different. I've actually thought about trying to come up with better sounding cabs for them myself, since those old Peavey cabs and combos sell for so little, and definitely get loud and last nearly forever.
 
i sliced up the cabinet and made an 18" bottom and a 2x10 top. the 18 sounds warm for small rooms but as i said there was no OHM marking on them. i could stack the 2 cabinets but without the info i don't want to mess with the head. (peavey max 700). i'm just an old bass man, not good with tech though. thank you for the help so far.