Which Ampeg cabinets are four ohm and which are eight ohm?

The following cabinets are four ohms enclosures:

SVT-810E/AV (2 x 8 Ohms/4 Ohms)
SVT-810HPC
SVT-610HLF
SVT-215E
SVT-412HE
SVT-410HLF
SVT-18
BXT-210M
BXT-115HL4
BXT-410HL4
PR-410HLF
BSE-410HLF
The following cabinets are eight ohms enclosures:
SVT-810E/AV (2 x 8 Ohms/4 Ohms)
SVT-410HE
SVT-210HE
SVT-15E
BSE-410HS
BSE-410H
BSE-115

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