What would be your list of components, that over the years (up to the present), has genuinely moved the goalposts for its level of performance / innovation.
To get the ball rolling, here is what has come off the top of my head:
SOURCE
Leak Troughline Tuner
Naim NAT 01 Tuner
Rega Planar 3
Linn Karik/Numerik
Nakamichi CR-7E
Linn DS
AMPS
Leak Stereo 20
Nad 3020
Sugden A21
Devialet amps
SPEAKERS
Quad ESL57
BBC LS3/5A
Celestion SL6 (first metal tweeter)
Kef LS50
Kef Blades
To get the ball rolling, here is what has come off the top of my head:
SOURCE
Leak Troughline Tuner
Naim NAT 01 Tuner
Rega Planar 3
Linn Karik/Numerik
Nakamichi CR-7E
Linn DS
AMPS
Leak Stereo 20
Nad 3020
Sugden A21
Devialet amps
SPEAKERS
Quad ESL57
BBC LS3/5A
Celestion SL6 (first metal tweeter)
Kef LS50
Kef Blades