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Line Source On-Wall Loudspeaker

The L150m is our premier expression of the core technology and strengths of the Sage Series, designed for those customers that demand the highest level of sonic refinement and performance available in an architectural speaker. It combines our state-of-the-art planar transducer elements in a way that takes full advantage of their inherent performance benefits. It offers a no-compromise solution for customers that require a high-end audiophile loudspeaker that fully integrates into their home.

Architectural Design with Custom in Mind

Slim and elegant in design, the On-Wall Sage L150m blends nicely into any décor with optional custom lengths and colors available.

Eliminate Floor and Ceiling Reflection

The Line Source design eliminates floor and ceiling reflection while distributing sound levels uniformly across the width of any room.

Big Bass in Small Boxes

Featuring Sage Series dynamic woofers that are more than twice as powerful as typical woofers for great bass without huge, ugly boxes that are difficult to place.

Power Over Distance

Line Source provides a much better power constituency than point source. This is great benefit when designing an entertainment system in large modern open floor living space as well as multi-tier theaters.

Key Features

Eliminate floor and ceiling reflection
Enhance clarity
More power over distance
Share experience

Highly Detailed & Dynamic
(3) 24” Planar Magnetic Driver
Covers 6 Octaves of Clarity
Light Weight Film PEEK
FAST acceleration

Available as In-Wall L150i
In-Wall / On-Wall
Can be Mixed and Matched
Custom Colors Available L150m
Custom Length Grilles Available L150i
Custom Length Available L150m
Anodized trim bezels L150m

Full Range Loudspeaker
72” Planar magnetic Driver
(12) High operating woofers
Outboard Active Crossover
DSP Required
3-CH’s of Amplification Required


Frequency Response30Hz – 20kHz ± 2dB relative to the target curve
Frequency Response, 30° Off Horizontal Axis 30Hz – 18kHz ± 2dB relative to the target curve
Impedance, Planar Section3 ohms
Impedance, Woofer Section6 ohms
Sensitivity, Planar Section96 dB / 2.83 V / 1m
Sensitivity, Woofer Section96 dB / 2.83 V / 1m
Power Handling, Peak>1000w
Shipping Weight, Bass Section90 lbs. (41 kg)
Shipping Weight, Planar Section53 lbs. (24 kg)
(PMD Column) Dimensions HxWxD76.01” x 7.2” x 5.87” (193.1cm x 18.3cm x 14.9cm)
(Bass Column) Dimensions HxWxD76.01” x 7.2” x 5.87” (193.1cm x 18.3cm x 14.9cm)


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L150M Owner’s Manual

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L150M Data Sheet

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L150M Mid Bass Drawing (PDF)

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L150M Mid Bass Drawing (DWG)

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L150M PMD Drawing (PDF)

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L150M PMD Drawing (DWG)

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