Trying to identify this head and speaker

[ianmcconehea]

I am trying to identify this Mesa Boogie head and cab. I know it was made in the early 80s, looks like a Mark IIB or maybe a mark IIC. but not im not entirly sure. i have found conflicting pics online. I am a bass player so guitar amps are a little out of my wheelhouse. Any help would be appreciated.

 

[Dave L]

I´m pretty sure it´s a IIB. The IIC has a "Pull shift" on the bass knob, and the back doesn´t look quite like a IIA either.

 

[IIBornotIIB]

Mark IIB - HRGX (100W, Reverb, GEQ, Export Tranny). Production between 1980-83. Serial # would help pinpoint which preamp circuit (RP9A, B or C). Cab is open back 1x12 loaded with EVM 12L

 

[Markedman]

One of the most underrated amps ever,... because of it's younger brother, the C+.

When I heard Brad Gillis on "Speak of the Devil", I knew Boogie was something else! Worth the money, they have strong bones and take a hammer to the chassis pretty damn good, at the factory before they leave, a good smack with a hammer just to be sure, that is quality.

Hammer test - https://www.premierguitar.com/gear/mesa-boogie-factory-tour-assembly-hammer-test