Speaker impedence for Rhodes 88 bottom 4x12 cabinet?

[Boring_Ghosts]

Hi, what impedence are the speakers for the bottom 4x12 cabinet on a Rhodes 88 wired at?  I just purchased one that had the amplifier taken out of it, so I have to use an external amplifier.  The owner had it wired so that there are two 1/4" speaker inputs, but I'm wondering how many ohms is required... thanks!

[ghost_buster]

Do you have a  multi meter?