Line Sources

LS3 Loudspeakers

Available in In-Wall and On-Wall versions

SAS Image Gallery

Sound+Image Award 2014Australia's Sound + Image Award, October, 2013
A system featuring the Wisdom Series LS3 has been named Installation of the Year for 2014 by Australia's Sound+Image magazine.
Exc!te AwardThe Exc!te Award, August, 2011
The Wisdom Series LS4 received Custom Retailer magazine’s Exc!te Award for Excellence in Custom Installed Technologies and Electronics.
Resi AwardThe Resi Award, August, 2011
The Wisdom Series LS4 has been named a Resi Award Finalist by Residential Systems Magazine for Best On-Wall Speaker.
Manufacturers AwardManufacturers' Excellence Award Finalist, August, 2011
The Wisdom Series LS4 has been named a Finalist in CEDIA's Manufacturers' Excellence Awards.

LS3 Loudspeakers
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.

Please visit our Where To Buy page to locate your closest authorized Wisdom Audio dealer in North America, or International Distributor in markets outside North America.

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

Frequency response 80Hz – 20kHz ± 2dB relative to the target curve
Frequency response, 30° off horizontal axis Coming Soon.
Impedance, tweeter LS3: 5.6 ohms
Impedance, midrange/bass LS3: 5.6 ohms
Sensitivity LS3: 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.

Owner's Manual
LS4 & LS3 Owner's Manual

Preliminary LS3i Literature
LS3 Brochure