Widely used since its introduction in 1990 as the replacement for the LS3/5a in pro-audio sound, AV digital workstations and OB trucks, the Monitor 20.1 offers a remarkably full scale sound that belies its extremely compact dimensions, still only the size of a shoe box.
This two-way sealed box design has a skillfully designed bass response and an even, natural sound across the entire audio band. The incredible bass performance combined with the natural sound and excellent stereo imaging guarantees that wherever space is at a premium and audio accuracy is needed, the Monitor 20.1 is the perfect solution. In near or mid-field use, the M20.1 is just the best mini monitor.
Technical Features
110mm Harbeth RADIAL2™ bass/mid;
19mm ferrofluid-cooled tweeter
Frequency response
75Hz – 20kHz, ±3dB free-space, grille on, smooth off-axis response
Impedance
6 ohms, easy to drive
Sensitivity
83dB/2.83V/1m axial
Amplifier suggestion
Works with a wide range of amplifiers – suggested from 15W/channel
Power handling
50W programme
Grille colour
Black
Dimensions
306 x 190 x 184 mm
(+12mm for grille and binding posts)
Connectors
Two 4mm Harbeth branded binding posts
Weight
Speakon socket (or binding posts to order)
Space needs
Ideally > 0.30m from rear wall
Stands
Optimally to bring ears level with tweeters. (Tweeter: 230mm up from cabinet base)
Packing
Pair per protective carton
“Switching to the harbeth lifted a veil on the sound of the human voice.”
– Paul Ostwind, TV Sound Supervisor
“Suffice to say that this is hands down the most accurate monitor ever made.”
– Paul Seydor
© All Rights Reserved
Harbeth Audio Ltd., UK
2025
© All Rights Reserved
Harbeth Audio Ltd., UK
2025