EP 60R OHMS?

[ronkroskie]

I was recently given an epiphone EP 60 R amp. The speaker in this amp was damaged removed and thrown away. By the measurement it is a 12 inch speaker but I don't know whether to go with 4, 8, or 16 ohms for a replacement speaker. Does anyone know what these EP amps usually came with as far as resistance?

Thanks, ronk