Acoustic Revive RWL-3 Absolute Room-Tuning Board

Description

The RWL-3 Absolute brings sound to life with a vast soundstage, positioning audio with striking clarity and realistic, three-dimensional imaging—achieving the phenomenon of “visible sound.” This final evolution of the RWL-3 integrates Kiyoseki, a mineral with over 40 times the negative ion emission of tourmaline, infused into the internal foam material.

The original features—tourmaline-infused silk surface material, a precisely calculated uneven structure for diffusion, improved left-right soundstage separation, expanded three-dimensional depth and height, and clear, immersive sound imaging—are all retained. Additionally, this new version further enhances the smooth, vibrant tonal quality and texture, delivering a sound experience reminiscent of real-life presence.

Dimensions:

• 665W × 90D × 1160H (mm)

Weight:

• 5.5kg

Additional Information:

• Comes with a stand for freestanding use and wall-mounting brackets.

The RWL-3 Absolute is the perfect choice for audiophiles seeking expansive soundstage realism and lifelike audio presence in their listening environment.

Principle and Structure

The RWL-3 Absolute features strategically designed grooves of varying depths, determined through computer analysis and extensive listening tests, to achieve the ideal diffusion of both direct and reflected sound from the speakers. Its carefully calculated curvature allows for a broader diffusion of sound waves compared to other room tuning materials, effectively enhancing the listening environment.

Additionally, the negative ion effect of the tourmaline-infused high-tech natural silk material and specialized foam ensures a smooth, high-quality tonal texture. This results in an improved sound experience with no harshness or unwanted resonance.

Absorption-based Room Tuning Kills Sound

The RWL-3 Absolute focuses on ideal sound diffusion and tone control without absorbing sound, unlike absorption-based room tuning materials (such as those made from glass wool or thick synthetic fibers, or using the Helmholtz principle). These materials can kill sound by deadening the room, and once sound is absorbed, it can never return. Absorption-based room tuning diminishes essential elements of music reproduction, such as energy, dynamics, and tonal shading.

In contrast, the RWL-3 Absolute eliminates only unnecessary reflections, flutter echoes, and standing waves, allowing the pure sound from your speakers to reach you more clearly. It actually enhances volume, energy, and liveliness, rather than diminishing them.

Solving the Problems of Conventional Diffusion Materials

Many audiophiles have experimented with high-priced, computer-designed room diffusion materials and found them to produce too much reverberation, causing the sound image to blur and the soundstage to become muddy and distorted. These issues arise because the random grooves in such diffusion materials cause unwanted reflections that lead to severe intermodulation distortion.

While these products claim to treat different frequency bands, they often overlook the size and shape of the room, the type and positioning of the speakers, and other factors, resulting in degraded sound quality due to intermodulation distortion. The RWL-3 Absolute avoids relying solely on computer analysis, instead undergoing hundreds of iterations of prototypes and listening tests to ensure the diffusion structure does not introduce distortion.

By placing just one RWL-3 Absolute panel between your left and right speakers, you’ll immediately notice pinpoint-sharp, three-dimensional central imaging, expansive depth, and accurate phase characteristics—solving the problems caused by conventional room tuning materials.

Tourmaline-Infused Natural Silk & Foam for Smooth, Natural Sound

Many users of conventional room tuning materials have experienced cleaner sound, but also report that the sound becomes dull, loses its luster, or develops a dry, grainy quality. This is often due to the synthetic fibers used in these materials, which generate unpleasant resonances that are reflected back into the sound.

The natural, premium-grade silk used in the RWL-3 Absolute has a unique random fiber structure, unlike synthetic fibers, which prevents harsh resonances and results in a smooth, natural, and high-quality tonal texture. What makes this silk material even more remarkable is that it contains tourmaline, infused naturally by feeding silkworms with mulberry leaves mixed with tourmaline powder. This silk generates negative ions, which improve the air’s viscosity and facilitate smoother sound wave propagation.

Additionally, the foam inside the panel features curved, randomly grooved shapes that are also infused with tourmaline, further enhancing the negative ion effect. This results in clearer, more detailed sound with a smooth, natural tonal balance.

The RWL-3 Absolute uses only the finest materials and is meticulously crafted to deliver sound quality far beyond that of conventional room tuning materials. It transforms a typical listening room into an acoustically optimized space, rivaling the best studios. With its accurate phase characteristics, expansive soundstage, and detailed, lifelike sound reproduction, you’ll experience a level of audio quality you’ve never heard before.

 

The RWL-3 Absolute is favored by many renowned musicians, engineers, and studios, including violinist Taro Hakase.

For a demonstration, please refer to the video showing the comparison of sound with and without the RWL-3 Absolute in Taro Hakase’s personal studio booth.

① Without product → ② RWL-3 (2 units introduced) → ③ RR-777 (ON)

For a detailed look, please refer to the video on YouTube, where shooting details are also included.

~ Koike’s Impressions ~

The RWL-3 makes it much easier to grasp your tone, speed, and overall sound quality, even from the comfort of your own home.

As musicians listen to their own sound by hearing the reverberation after playing, it’s crucial to understand the tone and speed of their own playing. With the RWL-3, musicians can clearly recognize these differences, which in turn can enhance the playing experience, making the musician feel as though they’ve improved.

When it comes to playing instruments like the violin, it’s no exaggeration to say that the RWL-3 greatly contributes to ease of playing. Even with just one unit, the effect is outstanding, but after testing with two units, the transformation of the soundstage was remarkable. Paired with the effects of the RR-777, the impact on sound was immense.