Stewart WallScreen Deluxe 135" 16:9 Harmony G3 0.7 Gain Acoustically Transparent Fixed Frame Projector Screen

135" Diagonal • 66" × 118" Image • 16:9 HDTV • Harmony G3 • 0.7 Gain • Acoustically Transparent

Stewart Part Number: WSDQ135HHMG3EZX

The Stewart WallScreen Deluxe 135-inch fixed frame projector screen with Harmony G3 is engineered for private cinemas and high-performance home theaters with the front speakers positioned behind the projection screen.

This configuration combines a large 66" × 118" 16:9 image with Stewart's woven Harmony G3 acoustically transparent projection material, creating a true cinema-style front soundstage. Stewart FilmScreen

Harmony G3 Acoustically Transparent Screen

Harmony G3 is Stewart's woven acoustically transparent front-projection material.

Speakers can be positioned as close as 1 inch behind the screen, allowing the left, center and right channels to be located directly behind the projected image. Stewart cites third-party testing showing minimal impact on the audio signal through 15 kHz. Stewart FilmScreen

0.7 Gain Lambertian Surface

Harmony G3 has a 0.7 peak gain with Lambertian light distribution.

The diffuse surface provides broad viewing and excellent image uniformity across multiple seats and rows. It is designed primarily for controlled-light home theaters and private cinemas. Stewart FilmScreen

135-Inch 16:9 Viewing Area

A 135-inch diagonal image measuring 66" high × 118" wide.

The native 16:9 HDTV format provides an immersive image for movies, streaming, television and gaming. Stewart confirms these exact dimensions for WSDQ135HHMG3EZX. Stewart FilmScreen

WallScreen Deluxe Fixed Frame

WallScreen Deluxe provides a permanently tensioned projection surface for dedicated theater installations.

The rigid frame and tensioning system maintain a flat viewing surface while creating a clean, defined border around the projected image.

Speakers Behind the Screen

Harmony G3 allows the left, center and right speakers to disappear behind the picture.

Dialogue can originate directly from the actors on screen, while music and effects maintain the correct vertical relationship to the image.

Harmony G3 is inherently acoustically transparent and does not require perforation. Stewart Filmscreen

Short-Throw Friendly

Harmony G3 requires a minimum throw distance of only 0.3 × image width, providing considerable projector-placement flexibility.

With this 118-inch-wide screen, the material's minimum throw specification equates to approximately 35.4 inches, although the projector's own lens and throw-ratio requirements ultimately determine placement. Stewart FilmScreen

4K and 8K+ Projection

Harmony G3 is engineered for high-resolution projection with excellent white-field uniformity. Stewart specifies compatibility with 4K and 8K+ projection while maintaining its acoustically transparent properties. Stewart FilmScreen

Technical Specifications

Stewart's current specifications confirm 0.7 gain, Lambertian distribution, 15% ALR, 0.3× minimum throw, excellent lay-flat quality, flame resistance and a maximum Harmony G3 material size of 15' × 90'. Stewart Filmscreen

Is Harmony G3 Right for Your Theater?

Choose Harmony G3 when the theater design calls for the front speakers to be installed behind the projection screen.

It is especially well suited to dedicated theaters with in-wall LCR speakers, baffle walls or purpose-built front speaker arrays.

At 0.7 gain, projector brightness and screen size should be calculated carefully. Harmony G3 is intended primarily for controlled-light environments rather than rooms requiring significant ambient-light rejection. Stewart FilmScreen

For a conventional speaker layout with higher screen gain, StudioTek 130 G4 may be more appropriate. For rooms requiring significant ambient-light rejection, consider FireHawk G5.

Stewart Filmscreen at The Grid HiFi

The Grid HiFi in Houston designs complete high-performance home theaters, media rooms and private cinemas around the room rather than treating the projection screen as an isolated component.

We can specify the correct Stewart screen material, projector, lens and mounting position based on screen size, throw distance, calibrated projector output, seating distance, room lighting and desired image luminance.

With an acoustically transparent screen such as Harmony G3, we can also design the LCR speaker locations, baffle wall, subwoofer placement and acoustic treatment behind the screen, creating a true cinema-style front soundstage.

For integrated projects, The Grid can coordinate the complete video, immersive audio, theater seating, lighting, Control4 automation, networking and professional installation.

Building a serious private cinema? Call The Grid HiFi at (713) 218-8120 and let us design the screen, projector and speaker system together.