Model/Circuit Number: Concert 112, Concert 210, Concert 410, Concert Top Years of Production: 1982 – 1987 Era: Configuration: Combo, Head (83-87) Controls: Black, forward facing w/ white labels Knobs: Black skirted w/ chrome center, numbered 1 – 10 Faceplate: Front: In 1, In 2, Vol (Pull for Bright), Treb, Bass – Vol (Pull for Ch [...]