Roland studio bass 100 - speaker impadence

[Macher]

Hello,

There's a good old Roland studio bass 100 in my jamspace. Its an ok combo, but i'd like to use only the speaker with my Mesa head to make it sound a bit cleaner.

Does anyone know the impedance of the speaker on a Roland studio bass 100 combo?

[Cadfael]

The impedance is 8 Ohms.
Built in was a Roland R&P C-1238B

More infos about your amp in my "Roland Bass Amplifier History" (all Roland amps from 1972-2011). It is only in German (because Roland USA was not interested) but you will understand many things anyway!
Your Studio Bass in on page 26/27. It was built between 1977 and 1984.
http://www.bossmusik.de/tipps/amps