Line Sources Point Source In-Ceiling In-Wall Mounts

Available in In-Wall version.

Line Up

L150i Image Gallery

Top 25 Best awards the Sage Series, November 2011 recognized the Sage Series in listing them as one of the Top 25 Audiophile Speakers of all time.
Excite AwardThe Exc!te Award, September 10, 2009
The Sage Series L150i received Custom Retailer magazine’s Exc!te Award for Excellence in Custom Installed Technologies and Electronics.
CE Pro FinalistCE Pro BEST Award 2009, September 10, 2009
The Sage Series L150i has been named Best In-Wall in the CE Pro BEST Awards for 2009.
P20 FreestandingThe Resi Award, September 10, 2009
The Sage Series L150i received a Resi Award from Residential Systems Magazine for Best In-Wall Speaker.
P20 FreestandingManufacturers' Excellence Award Finalist, July 21, 2009
The Sage Series L150i has been named a Finalist in CEDIA's Manufacturers' Excellence Awards.

L150i Loudspeaker
If you have not already done so, we recommend you read our Sage Series Overview before moving on to the specifics of the Sage model below.

The L150i is our premier expression of the core technology and strengths from the Sage Series, designed for those customers that demand the highest level of sonic refinement and performance available in an in-wall speaker. It combines our state-of-the-art 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. The Sage Series L150i is an unparalleled effort and serves as a benchmark for industry leading architectural products available today.

The L150i is available only as an in-wall model and incorporates two all aluminum cabinets and full back box enclosures per channel. It is the tallest line source in our Sage Series. Incorporating true line sources of this length is unprecedented among in-wall speakers. Since true line source arrays effectively eliminate floor and ceiling reflections, they are ideal for large rooms or those with architectural challenges including cathedral or coffered ceilings, hard floors, etc. The large, 76-inch tall line source driver complement allows for high resolution, low distortion and extraordinary dynamic range. The result is highly detailed, dynamically accurate, genuinely effortless performance at any volume level.

The true line source behavior of the L150i exhibits less propagation loss than any conventional loudspeaker, resulting in a vastly enlarged “sweet spot” that is particularly beneficial in any situation with a large seating area. Whether in a media room with a casual seating arrangement or dedicated home theaters with multiple rows of seating, everyone in the audience is treated to “money seat” performance.

The L150i consists of two 76-inch tall by 8-inch wide cabinets per channel, with the woofer cabinet crossing over to the mid/high frequency planar magnetic line source cabinet at 275Hz. The mid/high frequency cabinet builds upon the planar magnetic line source array of the Sage Series’ L75 model, incorporating three 24-inch PMD drivers resulting in a 72-inch true line source, yielding superior resolution, extraordinary dynamic capability, low distortion and wide dispersion.

The low frequency cabinet within the L150i incorporates twelve 6-inch high operating pressure woofers. Each woofer cabinet is driven by a single SA-1 amplifier, thereby using a combined 1,000 watts from its two 500-watt amplifier channels for the 12 woofers. Each channel is a two-cabinet system designed to be installed in-wall, adjacent to each other, within four or five inches of each other (flanking a stud).

As with all Sage Series systems, the 7.3 channel SC-1 System Controller is the heart of the system. It provides the active crossover between bass and midrange/treble, system-specific EQ, as well as Audyssey MultEQ® XT room correction on all 17 output channels for consistent no-compromise performance in every installation.

For those customers seeking the ultimate architectural loudspeaker, the L150i is the solution. Merging the benefits of an integrated loudspeaker with the superior qualities of a true PMD line source and outstanding low frequency performance, the L150i is in a class by itself. Capable of unprecedented dynamics, low distortion, high resolution, faithful timbre reproduction, three dimensional sound staging and freedom from compression, this system can be compared with the best freestanding systems and needs to be auditioned to be fully appreciated.

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.

L150i 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 30Hz – 18kHz ± 2dB relative to the target curve
planar section
3 ohms
woofer section
6 ohms
planar section
96 dB / 2.83 V / 1m
woofer section
96 dB / 2.83 V / 1m
Shipping weight,
bass section
90 lbs. (41 kg)
Shipping weight,
planar section
53 lbs. (24 kg)


L150i Mid Bass .dwg, .dxf, pdf available in owner's manual below
L150i Ribbon .dwg, .dxf, pdf available in owner's manual below
To view the CAD drawings above, download SolidWorks eDrawings here.

All Model Dimensions

Environmental Testing Data View»

Owner's Manual
L150i Owner's Manual

L150i Data Sheet
Sage Series Brochure