Acoustic Frontiers is the Western U.S. importer of Cassini Tradition and Cassini Carbon loudspeakers, and the parent company of HYPERSUB™ subwoofers, expertly handcrafted by Harbottle Audio.
Request A QuoteHarbottle Audio is the force behind Cassini Tradition, Cassini Carbon, and HYPERSUB subwoofers—an elite portfolio where advanced engineering meets artisanal craftsmanship. Each product is a fusion of cutting-edge technology, meticulous handcrafting, and innovative acoustic design, built to surpass industry standards and redefine the listening experience for audiophiles and home theater connoisseurs alike.
At the core of every Cassini and HYPERSUB product is Harbottle Audio’s proprietary Low Distortion, Low Compression (LDLC) methodology. While most manufacturers rely on limited small-signal efficiency specs and vague maximum SPL claims, Harbottle prioritizes real-world performance—specifically, the ability to reproduce large-signal dynamics at reference levels with virtually no distortion or compression.
Through rigorous LDLC validation at full output, each Cassini and HYPERSUB subwoofer is engineered to deliver clean, articulate, and high-impact bass—even under extreme conditions. This process doesn’t just suppress distortion; it eliminates it, along with compression artifacts, ensuring unwavering fidelity and dynamic range.
This is more than an incremental upgrade. It’s a radical correction of the industry’s long-standing compromises. Gone are the bloated, indistinct bass signatures of conventional high-output subwoofers. In their place: tight, responsive, and emotionally resonant low-frequency reproduction that maintains nuance, speed, and tonal clarity—even at full throttle.
Every Cassini and HYPERSUB subwoofer is artisan-crafted in Canada. Transducers feature hand-laid carbon fiber cones and powerful neodymium motors machined from U.S.-sourced steel. Enclosures are constructed from void-free plywood with shop-sawn hardwood veneers or structural laminated carbon fiber. Each unit undergoes more than 500 precision-verified quality control steps, guaranteeing that the performance of every shipped product matches the original engineering reference.
| Brand Focus | Amplifier Location | Enclosure Format & Finishes | Transducer Sizes | Design Bandwidth | |
|---|---|---|---|---|---|
| Cassini Tradition | A state-of-the-art, traditional box format subwoofer, for any high-end audio, home recording studio or home theater application. | Built-in plate | Ply, traditional box, satin wood veneers | 12"-24" sealed | 5-200Hz |
| Cassini Carbon | Personalized, atelier level subwoofer customization, 188 product combinations. For someone who wants the best, or maximum output from any given subwoofer. | Built-in plate | Carbon / ply, traditional box, carbon finishes | 12"-24" sealed | 5-125Hz |
| HYPERSUB | A home theater subwoofer system solution, custom engineered per project SPL capability, in-room bass extension & seat-to-seat consistency requirements. | Remote rack mount | Ply, shallow/built-in, black oak veneer | 15" & 21", dual 24" infinite baffle | 5-200Hz |
With Acoustic Frontiers, all it takes is 4 simple steps.
We'll take the time to understand your unique needs and goals to customize our approach to designing the best experience for you.
This is where the magic happens and what really makes Acoustic Frontiers stand out. Every room is different, and we’ll account for all the elements that impact performance in your space to ensure you get the best system for your budget.
We’ll make the installation process as painless as possible and carefully calibrate your system to optimize performance.
You deserve the best, and now you’ve got it. Put on your favorite movie or album, or create your next track because the system you wanted is yours to enjoy.
This guide teaches you everything you need to know to get the
best bass possible from your system.

“Thank you, Acoustic Frontiers! My system is no longer there. I can close my eyes, and the music just flows from another dimension!”
“I’m enjoying the system you did for me so much. It’s just incredible. It’s like listening to my music for the first time!”
“The Raw Audio/Video is off the charts fantastic, I could not imagine any improvement at all.”

Nyal Mellor, Founder, Acoustic Frontiers