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Our client is a lifelong audiophile who has spent years refining his listening environment through disciplined equipment upgrades. The system features flagship loudspeakers and high-performance electronics — components capable of extraordinary output and resolution.
Yet despite investing in world-class equipment, the room had reached a performance ceiling. The system was powerful. It was detailed. But it was no longer scaling with hardware improvements.
That plateau led to a fundamental realization: the room - not the equipment - had become the limiting factor.
The client initially engaged Acoustic Frontiers for a professional acoustic analysis. The intent was to evaluate room behavior and determine whether incremental adjustments could improve performance.
Measurement quickly revealed something more fundamental. The system was not the limiting factor. The room was.
The acoustical analysis identified:
The existing speakers and subwoofers delivered ample SPL output, but this was not the issue. Response flatness and resonance control was.
As a result, the scope expanded from acoustic analysis to engineered a full room redesign, including acoustic treatment design and subwoofer number/placement optimization. The objectives became clearly defined:
Overall, the goal was to elevate the room from enthusiast-grade installation to predictable, engineered performance. This was not an equipment upgrade. It was a systems integration project aligning architecture, acoustics, stereo subwoofer deployment, and signal processing into a cohesive performance strategy designed to deliver measurable, repeatable results.
System equipment was supplied by Hugh Fontain of Music Lovers, and structural construction was executed by Kevin Sheppard in coordination with the engineered acoustic plan.
The solution was built around a single premise: you can’t calibrate your way out of physical problems. If the room is injecting modal resonances, strong early reflections, uneven decay, and boundary-driven cancellations, the equipment won’t behave as engineered - no matter how capable the components are.
Symmetrize the Room
The first step was architectural correction. The existing window was removed, and the side wall line was extended to restore boundary symmetry. Niches were built into the side walls to accommodate subwoofers and equipment. New soffits were added and aligned to create consistent perimeter conditions.
This shifted the room from asymmetric to symmetric, an absolute foundational requirement for the best stereo imaging and soundstaging.
Manage <100Hz Energy
The original configuration was front-loaded. Physics says stereo speakers and subs located at the front of the room cannot adequately control room modes under 100Hz. Acoustic Frontiers introduced additional subwoofers along the side and rear boundaries in carefully calculated positions, including four HYPERSUB F-21 units, to improve modal control and provide levers to optimize frequency response flatness at calibration phase.
This changed the critically important sub-100Hz bass response room from wildy varying to manageable and controllable.
Engineer Full-Surface Acoustic Treatment
Acoustic treatment was engineered, not decorative. Custom metal plate bass traps, hybrid absorber/diffuser configuration custom designed and built by acoustic frontiers, integrated cavity venting, and coordinated front, side, rear, ceiling, and floor strategies were implemented with precisely calculated placement derived from in-depth acoustical modeling. Low-frequency decay control, reverberation time and reflected energy were addressed intentionally.
Resolve Structural Conflicts Without Compromising Geometry
The relatively low ceiling and joist layout created placement conflicts for Atmos channels and lighting. Rather than abandon ideal geometry, speaker placement was adjusted in three-dimensional space, front and rear top symmetry was preserved where shifts were required, and lighting was coordinated to maintain proper coverage angles. The lighting plan was designed by Acoustic Frontiers to highlight equipment and architectural features.
The room was engineered around performance geometry — not convenience.
Integrate System Infrastructure
Dedicated rack alcoves, custom rear speaker enclosures, hardwood flooring with controlled rug placement, and coordinated signal path and amplifier deployment ensured that every element supported a unified performance strategy.
We did not simply treat the room. We corrected asymmetry, rebuilt structural boundaries, redistributed low-frequency sources, engineered decay control, and preserved speaker geometry within physical constraints.
The result was a room transformed from a high-end enthusiast installation into a controlled, multi-sub, symmetry-restored, performance-engineered environment.
VIDEO SYSTEM
Projector
Sony VPL-VW7000ES
Screen
Stewart Stealth
StudioTek 100 material
148 inch diagonal (16:9 image size: 72.5 inch x 129 inch)
Masked to 140 inch diagonal (2.40:1: 53.75 inch x 129 inch)
MAIN LOUDSPEAKERS
Left / Right
Wilson WAMM Master Chronosonic
Center
Wilson Mezzo CSC
Front Subwoofers
Wilson Subsonic (2)
HYPERSUB 244D/C amplifier replacing client's previous Ayre MX-R monoblocks)
Side and Rear Subwoofers
4 x HYPERSUB F-21 (side and rear positions)
HYPERSUB 422D amplifier (1 amp driving 4 x F-21 subs)
SURROUND AND HEIGHT SPEAKERS
Side Surrounds
Focal Electra IW 1002 Be
Rear Surrounds
Focal Electra IW 1003 Be
Top / Atmos Speakers
Focal 300 ICW6
AUDIO SIGNAL PATH
Dac
Dcs Varese
Preamplifier
Spectral DMC-30SV
Amplifiers
Spectral DMA-500 Monoblocks
Processor
Theta Casablanca Va
Cables
Transparent
POWER
Enphase 25 kWh battery / inverter system
ACOUSTIC SYSTEM
Custom Acoustic Frontiers Treatments
Custom Metal Plate Bass Traps
Heavy-duty bass control tailored for boundary control and modal reduction.
PolyWave Absorbers
Engineered hybrid absorber/diffuser panels used in multiple locations (front, side, rear).
Flutter Free Molding / Planks
Distributed along critical reflection paths to reduce flutter and mid/high-frequency comb filtering.
Cavity Absorbers
Acoustic solutions integrated into unused room cavities (joist space, crawl space). Openings covered with flush HVAC register with integrated absorption.
Precision Treatment Layouts
Panels sized and located with +/- 6 inch precision per the construction drawings.
The measurable win was not a single curve, but can be clearly seen across all aspects of room acoustic behavior.
"My goal was to upgrade the basement into the best possible music listening room, constrained only by its dimensions. Based on listening and measurements, Acoustic Frontiers did better than that: the four-sub HYPERSUB Frontier F-21 system, (..each subwoofer built around a 21-inch driver), along with its DSP amplifier, and 13 Acoustic Frontiers sound treatment panels enabled an incredibly pleasing, spatial, large, dynamic, and accurate sound. They are just the right match for a pair of Wilson Audio Master Chronosonic speakers and subs, Roon Nucleus source, dCS DAC, Spectral main channel amplification, Transparent cabling, and Enphase battery power comprising the rest of the stereo system. I could not be happier!" ~ A.S
Discover how engineered multi-sub integration transforms real-world performance with HYPERSUB.
"My goal was simple: create an experience that surpasses a commercial theater—and I believe we’ve achieved that." ~Jeff Mery, Bison HTA
This case study highlights how Acoustic Frontiers engineered a high-performance home recording studio capable of supporting DJ performance, electronic production, mixing, and mastering—without compromising accuracy or workflow.
Learn how early home theater design, layout, and acoustic treatment improve performance in new home construction.
Nyal Mellor, Founder, Acoustic Frontiers
Nyal Mellor
Author