SOLO PROJECT
Completed independently from research through final concept.
MARROW SPEAKER
Designed for adventurers who demand uncompromising audio fidelity in the most unpredictable environments, this speaker redefines the boundaries of portable sound. Engineered with a rugged, acoustically inert chassis to withstand high impact urban transit, its form factor remains fluid and intuitive, echoing the organic movement of coastal landscapes. Inside, a precision tuned driver array utilizes active resonance management to achieve stadium level sound pressure in a device no larger than a smartphone, ensuring your soundtrack remains as dynamic as your lifestyle.
YEAR
2026 6 week project
DESIGN GOAL
CREATE A PHONE SIZED AUDIO POWERHOUSE FOR A LIFE IN CONSTANT MOTION, BLENDING STREET LEVEL TOUGHNESS WITH COASTAL FLUIDITY TO DELIVER PRISTINE, STADIUM LEVEL SOUND ANYWHERE.
DESIGN PROMPT
Create a sustainably responsible product that expresses a unique and purposeful form.
PURE RESONANCE
The industry forces a choice between size and sound, trapping power behind unnecessary bulk. We are breaking that compromise. By ditching bloated design for rugged, compact precision, we’ve created an acoustic powerhouse built for the friction of the streets and the volatility of the coast. This is stadium level impact in a frame that refuses to be weighed down.
Portable speakers prioritize size over sound quality. Why not have both?
Designers can only achieve two out of three core goals: deep bass, small enclosure size, and high output efficiency. This is called Hofmann’s Iron Law.
— Josef Anton Hofmann
We set out to design the speaker that would shatter Hofmann’s law.
Building on that foundation, we launched into rapid 15 minute whiteboard sketching sessions. These quick bursts of initial ideation pushed us to translate our component map into physical shapes. Iterating fast allowed us to discover dynamic silhouettes that balanced rugged armor with a clean, pocketable form.
Our process began at the whiteboard, talking through the layout of core components within a smartphone sized footprint. We let the protective exterior organically wrap around this internal architecture. This natural, component driven form ensures intuitive interaction, perfectly bridging urban grit with coastal freedom.
NEXT LEVEL COMPONENTS
We completely reengineered the internal architecture to shatter the limits of portable audio. The mid frequencies are driven by a power efficient, ultra thin MIT paper laminate cone, delivering crystal clear precision without the bulk. We paired this breakthrough material with a custom passive radiator that drives an advanced surround sound experience. The result is pristine, immersive audio powered by cutting edge technology.
Powered by an ultra thin MIT paper cone and a custom passive radiator, Marrow delivers pristine surround sound without the bulk.
Most portable speakers bottom out at 70 Hz, cutting off the bass and leaving your music hollow. We engineered ours to dive deep to 49 Hz. This breakthrough unlocks chest thumping bass and superior, full spectrum sound. Experience heavy, low end power and studio quality depth in a flat, phone sized frame built for motion.
While others stop at 70 Hz, our flat, phone sized frame dives to 49 Hz to deliver chest thumping bass and full spectrum sound.
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