Product Description

Description

Avoid risking poor results in your acoustic treatment strategy by placing uncalculated, random blocks in a series, as this approach will not produce even, balanced acoustic diffusion. Add attractive, high-performance diffusion to your room with our precision-cut, 23-root, two-dimensional Gotham Primitive Root Diffusers.

Specifications

✓ Standard Size: 17.5″ x 17.5″ x 5.5″
✓ Weight: 20 lbs
✓ 23-root two-dimensional primitive root diffuser (PRD) sequence
✓ Made using medium density fibreboard (MDF)
✓ Two sawtooth hangers included
✓ Provides high performance, even diffusion from 1250hz to 9500hz with scattering effects down to 650hz
✓ No glue or destructive adhesive when installing.
✓ Enhances any space with beautiful pattern
✓ Finish looks great natural or can be painted to match any decor

Materials

Camira Cara Fabrics

GIK is excited to use the Camira Cara fabric line standard in all our products. The Camira fabric will look familiar to fans of Guilford of Maine fabrics, similar to their FR701 line but with different color options. With a richer aesthetic and tactile feel and wider range of available colors compared to our previous standard offerings, Camira Cara allows every product to look as good as it performs.

Sustainability

GIK Acoustics has long prioritized sustainability as a guiding principle. We carefully select materials that balance acoustic performance with environmental responsibility, sourcing from suppliers who share our commitment to reducing waste and carbon impact. Our products use durable, recyclable components that minimize landfill waste while maintaining the highest acoustic standards.

Health & Safety

Health and safety are built into every GIK product. All materials—including fabrics, cores, and wood elements—are formaldehyde-free, and independently tested for indoor air quality. This ensures our treatments are safe for studios, homes, schools, and offices alike. We believe superior acoustics should never come at the expense of well-being, which is why our products are made with clean, non-toxic materials that protect both the people who use them and the spaces where they’re installed.

Care Instructions

Camira Cara Fabric

Vacuum regularly. Wipe with a damp cloth using soap and water or use proprietary upholstery shampoo. For deeper cleaning use bleach or alcohol.

Veneer Finishes

Clean with a soft cloth or soft brush, lightly dampened with kukewarm PH-neutral, soapy water. Do not use solvents or chemical cleaners, but cleaning can be done with alcohol-based cleaners. Finally, wipe with a damp cloth afterward.

2-Dimensional Diffusion Arrays

The striking look of the Gotham Primitive Root Diffuser brings unparalleled performance: turning damaging reflections into a sonically pleasing diffused sound field, while controlling reverb and reflections, yet retaining higher frequencies across a wide frequency range, making the room sound larger than it is. When combined with acoustic panels, bass traps, and other devices, you can deliver premium looks and sound in recording studios, home studios, and premium listening rooms and theaters.

Overview

Our Gotham two-dimensional sound diffuser design scatters sound across two planes: horizontal (left & right) and vertical (up & down). This two-dimensional scattering broadens the soundscape and makes a room sound larger. It’s easy to daisy-chain multiple Gotham diffuser panels together into visually striking arrays on your walls or ceiling. Diffusion is a great way to control flutter echo, comb filtering, and other artefacts from reflected sound waves as part of a room acoustics strategy.

High Performance Diffusion

Many sound diffuser designs rely on random blocks in a series rather than on calculated patterns that produce proper, even acoustic diffusion. GIK Acoustics’ Gotham Primitive Root Diffuser has a 23-root, calculated sequence that is machine-cut to within 120th of an inch. The design and painstaking attention to detail make each diffuser perfect from the 1st to the 100th. Reproducing this level of precision on DIY projects is very difficult.

Placement Ideas

The Gotham Primitive Root Diffuser is an attractive choice for a room where high-frequency chaos needs to be controlled but not removed. Our Gotham sound diffuser is best suited to spreading high frequencies throughout a room.

In a control room, engineers place Gothams on the front and back walls and the rear sidewalls to better mix the reverberation. In home theater and two-channel audio rooms, Gothams can be arranged as an array on the rear wall or side walls, or on the front wall behind dipole speakers, to deal with sharp reflections.

FAQ

Can Gotham Diffusors be used together to create larger patterns?

Definitely! Designers intend users to place these diffusers side by side to form continuous arrays that improve performance and create striking visual patterns on the wall.

What’s the difference between 1D and 2D diffusion?

A 1D diffuser scatters sound left and right (assuming vertical mounting), while a 2D design scatters in both horizontal and vertical planes. Designers use the 1D pattern to produce greater total diffusion, despite its single-plane design.

Where are the best places to install Gotham Diffusors?

They work well on rear walls, side walls, or ceilings where you want to maintain the room's energy while breaking up harsh reflections. They’re excellent for studios, listening rooms, and home theaters that benefit from spaciousness without added echo.

Do Gotham Diffusors also provide absorption?

No, they are pure diffusers designed to scatter sound energy as part of an acoustic treatment solution to improve sound quality. For best results, Gothams should be combined with absorbers, bass traps, and/or hybrid panels to achieve optimal performance in high-end rooms, with balanced decay times and a lively, natural sound. Optimizing the listening position can help, too.

What’s the difference between a Primitive Root Diffuser and a Quadratic Residue Diffuser?

Quadratic Residue Diffusers (QRD Diffuser) and Primitive Root Diffusers (PRD Diffuser) are simply two slightly different ways to calculate a diffuser’s dimensions. Both are based on prime number theory and modular arithmetic, using mathematical sequences to determine well depths so that reflected sound is redistributed in time and space rather than returning as a strong specular reflection. Users can treat them as interchangeable because they share similar characteristics. Quadratic Residue diffusers are typically a bit more precise and efficient, producing a very uniform and predictable phase distribution across their design bandwidth. In contrast, Primitive Root diffusors usually have a wider operating bandwidth and a slightly more decorrelated scattering pattern. In practical listening environments, both approaches function similarly, helping preserve a sense of liveliness while reducing distinct echoes and flutter.

A Quadratic Residue Diffuser is one specific implementation of a Schroeder Diffuser, along with skyline diffusers or other well-diffusers, calculated using quadratic residue sequences. A Primitive Root Diffuser uses a different mathematical sequence to achieve a similarly diffuse sound field. In real-world applications, the performance differences between a well-designed Primitive Root diffuser and a well-designed Quadratic Residue Diffuser are subtle compared to larger acoustic factors such as placement, room volume, listening distance, and overall treatment balance.

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