Here's one of my favourite preamps, Accuphase C-11, circa 1989-90.
Its frequency response is 1Hz-500,000Hz- now that is wideband...
Neat design, dot matrix red LED display for input selection. Rarely used controls behind swing down door.
The volume knob is 2 inches deep, solid alloy, but only protrudes a quarter of its depth.
Control detail is printed on the fold down door and the front panel so it can be seen from above in use.
Genuine ITT Cannon balanced inputs for a CD and Line and balanced outputs.
Lettering is engraved on front panel
These corner blocks are over and inch thick solid alloy.
Various controls under flap.