Harbeth 40.3 XD Loudspeaker; Pair

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The Harbeth XD Series:

Redefining the art of loudspeaker design.

Harbeth’s now legendary Anniversary series claimed worldwide recognition, including ‘Best Loudspeaker of the Year 2019’. However, true innovators are never satisfied.

Our approach has always been driven by relentless innovation - by questioning what went

before, in order to make things better. This journey of improvement has led to the creation of the new Harbeth Xtended Definition series. Evolved from the success of the Anniversary collection, this new range encompasses greater integration, transparency and musicality in its performance capabilities.

Welcome to Harbeth Xtended Definition.


The absolute pinnacle of BBC loudspeaker design.

The result of a passionate and tireless quest for audio perfection. Built on the success of the global award winning M40.2 40th Anniversary, this new generation Harbeth achieves a leap in performance delivery. Stunning realism, expansive bass and lifelike transparency delivers an ultimate experience for even the cognoscenti

Adaptable to a wide range of listening environments, accurate across the entire audio band, emotionally engaging and easy to drive, the M40.3 XD takes the acclaimed Harbeth sound to a its highest level.
Prepare yourself for true musical indulgence like you have never experienced before.


Transducer system: 3-way vented: 300mm Harbeth bass unit; 200mm RADIAL2™ mid; 25mm ferro-cooled soft dome tweeter

Frequency response: 35Hz - 20kHz ±3dB free-space, grille on, smooth off-axis response

Impedance: 6-8 ohms, easy to drive

Sensitivity: 86dB/1W/1m

Amplifier suggestion: Works with a wide range of amplifiers, suggested from 35W/channel

Power handling: 650W program

Connectors: Two 4mm gold-plated binding posts for wires or plugs

Dimensions: 29.5" x 17" x 15.2"

Space needs: Ideally free-space away from walls

Stands: Optimally to bring ears level with tweeters. (Tweeter: 25.9" up from cabinet base)

Weight: 83.7 lbs each

Packing: Single speaker per protective carton