Studio 22 plus question

[A.Crossfield]

Hi, everyone....new member, first post. I have been playing guitar for over 30 years and just bought my first Mesa/Boogie. It's a studio 22 plus in mint condition...it almost looks new. According to the serial number it was built around 1990. My question is regarding a blue stripe under the power cord as it enters the chasis. Does this indicate anything I should know about the amp. I was curious because I was reading about the stripe's on the early Mark's. Any input would be appreciated. Thank you.

 

[tonejam]

Welcome to the Forum!
Sorry I can't help, but I did check my 22+, and I don't have that blue stripe.
With or without, they're terrific.