LD67

A pod 2.0 manual I downloaded has the brit hi gain listed as a 1986 Marshall JCM 800 in the manual, but as a 1990 Marshall JCM 800 on the reference sheet. Any idea which year is the correct one modeled? I'm no amp tech, so is there really much of a difference between those two year's models? Here is a link to the manual. You can find the discrepancies on pages 2 and 3. http://www.rudebadmood.com/badges/POD_2.0_User_Manual-English.pdf