Home / Preamp Tube / LJ 5687 AF Series Preamplifier (MiniMax 7) / LJ 5687 AF Preamplifier (MiniMax 7 - 2007-0723) 3

LJ 5687 AF Preamplifier (MiniMax 7), the best buy. Adopt (and improvement) the Audio Note M7 circuit.
  • - Design topology: anode follower (AF).
  • - Tubes: 1x 5687 (preamp), 1x 6X4 (rectifier).
  • - 1U metal chassis.
  • - Two line input with toggle switch selector on back panel.
  • - Two step power up: OFF -> ON (mute/stand by) -> ON (operate).

    Photo file: July 27, 2007.