I've just added a Studio Preamp to the collection.
The rack is dated 12/19/1989 . The Graphic EQ background color is blue/gray.
I've a Quad Preamp, dated 11/10/1990. The Graphic EQ(s) background color is black.
I've seen picture of Mark III with both color schemes.
Was this blue/gray color scheme offered only during a specific production period (years ??) ? Or it was a customer choice/option ?
Any info welcome ! 8)
The rack is dated 12/19/1989 . The Graphic EQ background color is blue/gray.
I've a Quad Preamp, dated 11/10/1990. The Graphic EQ(s) background color is black.
I've seen picture of Mark III with both color schemes.
Was this blue/gray color scheme offered only during a specific production period (years ??) ? Or it was a customer choice/option ?
Any info welcome ! 8)