Played the 'big' city festival last night. Used the same (I think) VR & blue & silver grille cloth 810 (an AV I think) as I did at the same festival last year. Was FUN being able to run the VR at 10.30 & therefore, just breaking up. Ain't much better imo. P-bass w- flats I looked on the back of both amp & cab- both made in USA by SLM. What year about is this? Did they make many?