Statement Speakers, Defined by Design Philosophy
Statement speakers are premium loudspeakers designed not only for high-end audio performance, but also to act as visual centerpieces and long‑term room integrations that reflect a distinct design philosophy, whether through radical engineering, bespoke custom speaker finishes, or both. In this comparison, Monitor Audio’s Hyphn and PureAudioProject’s Quartet15 represent two extremes. Hyphn is a sculptural, box-based monument to high-end audio design and personalization, while the Quartet15 is an open baffle speaker focused on acoustic innovation, modularity and amplifier friendliness. In practice, Hyphn suits buyers who want a turnkey, museum-piece system and can tolerate long lead times, whereas the Quartet15 favors hands-on audiophiles with suitable space who value efficiency, tuning flexibility and the unique soundstaging of open baffle speakers.

Monitor Audio Hyphn: Sculptural Luxury and Custom Finishes
Hyphn is a statement loudspeaker that treats the cabinet as both engineering platform and art object, precision milled from a composite of acrylic, minerals and natural pigments to reduce vibration and present a seamless surface. It is one of the most technically ambitious products the brand has ever built, described as “the most creatively ambitious and technically advanced speaker the company has ever built”. The dual-pillar enclosure links around a central bridge that carries the M‑Array: six 50mm midrange drivers flanking a Micro Pleated Diaphragm tweeter in its own waveguide, with four inward‑facing 8‑inch bass drivers secured by thick metal rods. This traditional enclosure philosophy focuses on force-cancelling bass, strict control of cabinet behavior, and refined crossovers using ClarityCap capacitors and encapsulated inductors. Hyphn is for listeners who prioritize turnkey engineering over experimentation and want their statement speakers to feel like permanent architecture.
Where Hyphn truly breaks from typical premium loudspeakers is personalization. The model now ships in over 200 custom finishes, each hand‑painted to order so owners can choose matte, gloss or metallic looks that integrate precisely with their listening room. Customers selecting the three Standard Finish Collection options — Matte Heritage Green, Matte Black and Pure Satin White — pay USD 99,000 (approx. RM456,000) per pair, while the custom versions start at USD 109,000 (approx. RM502,000) for RAL colors and standard materials. That level of visual flexibility turns the enclosure into a design canvas, but it comes with practical trade‑offs: every custom Hyphn is built to order, and buyers must accept an estimated three‑month lead time from order to delivery. If you view your listening room as a curated gallery and want a zero‑tweaking ownership experience, Hyphn fits that brief.
| Spec | Hyphn | Quartet15 |
|---|---|---|
| Design type | Force‑cancelling box loudspeaker with composite dual‑pillar cabinet | Three‑way open baffle speakers with no conventional cabinet |
| Drivers | Four 8" bass drivers plus M‑Array with six 50mm mids and MPD tweeter | Two proprietary 15" woofers, one 10" midwoofer, one 5" Voxativ AF 2.6 driver |
| Customization | Over 200 hand‑painted custom speaker finishes; three standard colors | Choice of baffle materials including colored MDF, Valchromat HDF, bamboo, walnut, oak, maple |
| Price (pair) | USD 99,000–109,000 depending on finish (approx. RM456,000–RM502,000) | Starts around USD 18,000–19,500 depending on configuration (approx. RM83,000–RM90,000) |
| Sensitivity / amps | Not specified; suited to higher‑quality power and conventional high‑end amplification | Above 96dB sensitivity, 8‑ohm nominal; friendly to low‑to‑moderate‑power tube and Class A amps |
| Room demands | Large rooms; visually dominant, but enclosure controls bass and placement is more conventional | Needs 2–3.5 feet from rear wall, not suitable for wall‑hugging or small rooms |
| Assembly / lead time | Factory assembled; made to order with about three‑month lead time | Ships flat‑packed; requires owner assembly with Allen key and screwdriver |

PureAudioProject Quartet15: Open-Baffle Engineering and Hands-On Ownership
The Quartet15 takes a very different path to high-end audio design, using a three‑way open‑baffle architecture that eliminates the conventional box entirely. Each frame carries two proprietary 15‑inch paper‑cone woofers developed with Eminence, a custom 10‑inch paper‑cone midwoofer and a 5‑inch Voxativ AF 2.6 wide‑range driver. Paper diaphragms are used across all four drivers to maintain consistent tonal character from bass through treble. Because there is no cabinet, rear radiation joins the sound, giving open baffle speakers a large, spacious soundstage with less enclosure coloration — provided they are placed well away from boundaries. Quartet15 demands 2 to 3.5 feet behind it and is explicitly “not for small rooms, wall‑hugging installations or anyone who believes spending nearly $20,000 should eliminate the need to assemble furniture”. In other words, this design targets audiophiles ready to adapt their room to the loudspeaker.
Quartet15 also stands out for its efficiency and tweakability. Sensitivity is quoted above 96dB, with an 8‑ohm nominal impedance and bass that extends down to roughly 29–32Hz. That spec sheet makes it a logical partner for 300B and 845 single‑ended tube amps, EL34 or KT88 push‑pull designs, and low‑to‑moderate‑power Class A amplifiers, as well as higher‑powered solid‑state gear with good low‑level control. A key quotable point is that “PureAudioProject’s earlier announcement listed the Quartet15 from $19,500 per pair, while more recent show information suggests some configurations may begin around $18,000” (USD 18,000–19,500; approx. RM83,000–RM90,000). Instead of a hidden network, the exposed first‑order Thrier crossover uses Mundorf MCAP EVO Silver Gold Oil capacitors and MRES20 resistors, with screw terminals that invite parts swapping without solder. The catch: Quartet15 ships flat‑packed and expects you to pick up an Allen key, and the maker has yet to publish full external dimensions, a notable omission for such large frames.

Which Statement Speaker Belongs in Your Room?
Choosing between Hyphn and Quartet15 is less about chasing absolute performance and more about aligning with a philosophy of living with statement speakers. Both target discerning audiophiles ready to invest in room‑integrated audio solutions; Hyphn expresses that through a monumental enclosure and obsessive finish options, Quartet15 through open‑baffle spaciousness and modular engineering. If you want your premium loudspeakers to arrive fully formed, visually exact to your interior and to remain essentially untouched for years, Hyphn is the safer bet. You trade money and lead time for stability and meticulous factory control, and you get a sculptural object whose custom speaker finishes can be tuned to the last RAL chip. If, however, your idea of high‑end audio design includes system tuning, amplifier experimentation and visible hardware, the Quartet15 is more rewarding. It asks for floorspace, assembly and some curiosity, but repays that with high sensitivity and the distinctive acoustic scale of open baffle speakers.
- Buy the Hyphn if you want a turnkey, hand-built statement speaker with over 200 custom finishes that can be tailored to your interior and you accept a three‑month lead time.
- Skip the Hyphn if you prefer a more interactive, modifiable system or cannot justify spending USD 99,000–109,000 (approx. RM456,000–RM502,000) on loudspeakers.
- Buy the Quartet15 if you have a medium‑to‑large room, can place speakers 2–3.5 feet from the rear wall and want highly efficient open baffle speakers compatible with low‑to‑moderate‑power tube or Class A amplifiers.
- Skip the Quartet15 if you need wall‑hugging placement, dislike assembly and crossover tuning, or lack the space for two 15‑inch woofers per side in your listening room.
- Buy the Hyphn if you value enclosure control, hidden crossovers and a visually seamless, box‑based design over the spacious but room‑dependent presentation of open baffles.
- Skip the Hyphn if you are more interested in experimenting with modular crossovers and driver voicing than in owning a fixed, museum‑grade premium loudspeaker.








