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M40.3 XD

Name: Harbeth M40.3 XD
Brand: Harbeth

Harbeth

Monitor Series2020 – Present

LoudspeakersFloorstanding Speakers

Estimated price (community-sourced)

$13,900 - $20,990

About the M40.3 XD

The Harbeth M40.3 XD is Harbeth's flagship 3-way, dual front-ported stand-mount monitor loudspeaker, developed from the M40.2 40th Anniversary model and positioned as the company's reference design for ultimate musicality and accuracy. It uses a 300mm Harbeth bass driver, a 200mm Harbeth RADIAL2 midrange unit, and a 25mm ferrofluid-cooled tweeter in a vented configuration for wide-band, low-distortion reproduction. Frequency response is specified at 35Hz to 20kHz (plus or minus 3dB), with a nominal 6-8 ohm impedance and 86dB sensitivity, making it relatively easy to drive with a broad range of quality amplifiers. The M40.3 XD is voiced as a reference monitor that is highly resolving yet natural and emotionally engaging, with even balance across the audio band for realistic scale, imaging, and timbre in domestic listening rooms.

Specifications

Key Specifications

Sensitivity: 86 dB

Impedance: 7Ω

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