Help to ID Older Boogie

[PeterB]

Hoping someone can help me ID this amp. I've had it for many years and like it a lot...My guess is mid 80's Mark II C?
Thanks,
Pete

 

[Jay Omega]

It’s an HR export, either a IIA or IIB. Not a IIC

 

[user 41014]

7717 is in the middle of IIB. Earlier 80's, prob 82 which it may say on the underside of the chassis.

 

[rarebitusa]

yes indeed... right in the middle

Mark IIB

Aug. 1980 - May 1983

5575-11000

Mesa Amp Serial #'s

 

[James]

Yeah, IIB. I'd guess 1981 - I had 7791 from September of that year

 

[PeterB]

Thanks for all the info...much appreciated