Line Sources


Available in on-wall, and in-wall versions

Line Up

Recognizing that the height of the LS4 may exceed placement options in some installations, its sibling LS3 employs identical technology and shares the same industrial design, but incorporates three planar magnetic modules. At 60 inches tall, it is ideally suited for installation behind an acoustically transparent screen, as a main speaker or surround. An LS3i multichannel system is our ultimate solution for those seeking seamless timbre matching and uniform dynamic expression throughout the listening space.

Essentially three-quarters of the LS4, the LS3 is a supremely capable speaker. A single LS3 has a sensitivity of 98 dB for 2.83 volts input and is capable of reproducing sound pressure levels in excess of 127 dB at 4 meters. The 60-inch tall line source driver complement offers identical performance characteristics as the LS4, with only a difference in sensitivity and maximum attainable sound pressure level.

As with its sibling, the LS3 benefits from a large sound-producing surface area that allows for minimal movement to achieve a given sound pressure level, inherently reducing distortion at all frequencies. The low frequency radiating area of a single LS3 is equivalent to 8 twelve-inch moving coil woofers. The high frequency radiating area is equivalent to the radiating area of 69 one-inch dome tweeters. To optimize both sensitivity and superb control of the thin-film diaphragms in each module, within each LS3 a total of 1782 discrete magnets with a cumulative linear length of 297 feet (91 meters) are used.

LS3 Specifications
All specifications are subject to change at any time, in order to improve the product.

Frequency response 30Hz – 20kHz ± 2dB relative to the target curve
Frequency response, 30° off horizontal axis Coming Soon
LS3: 5.6 ohms
LS3: 5.6 ohms
Sensitivity 98 dB / 2.83 V / 1m
Shipping weight LS3: 435 lbs. (198 kg)
LS3i: 345 lbs. (157 kg)


LS3 .dwg, .dxf, pdf
LS3i .dwg, .dxf, pdf
To view the CAD drawings above, download SolidWorks eDrawings here.

All Model Dimensions

Owner's Manual

coming soon