‘Trio15’ stands for ‘speakers with three baffles’ and ‘15-inch woofers’. The ‘center driver’ is chosen by you for best match to your personal music and sonic DNA.
Though all configurations of Trio15 share quite a similar sonic signature, every center driver has it’s distinct build and sonic features.
Since their launch in 2014, Trio15 speakers play for hundreds of customers world-wide while being raved by the industry and winning multiple awards
How to Choose your Center Driver
Trio15 can be ordered with one of the following Center Drivers*:
- Our proprietary wide range ‘Horn1’
- Three options of Voxativ 8” Full Range Drivers
- Our proprietary 10” Coaxial Mid/Tweeter Driver
(*) – Click on one of the TABs below to read about the various options.
All Trio15 models feature the chassis (Trio15 Frame, baffles, our proprietary 15” woofers, Thrier Crossover Boards); and the Center Driver you have chosen with it’s specific crossover components.
Center Drivers and their specific crossover components* can be easily swapped out with only an allen key and a screwdriver.
(*) – Coax10 comes with it’s own 3-way dedicated crossover.
Coax10 (two way 10” Coaxial)
Our newly released custom Coax10 center driver, was designed to push the sonic envelope to the edge, but without loosing the organic and emotionally moving presentation, warmth and musicality.
The Coax10 driver features a high-end 10′′ mid-woofer with a light-paper cone and a 1/4′′ Horn tweeter with Polymer dome (similar to our Horn1), but differently from typical configurations, both are mounted on the same axis, aka Coaxial design.
Such an advanced coaxial center driver, with mid and tweeter in the center and woofers in D’Appolito design form kind of a large-size point-source configuration that makes all sound organic, natural and no fatigue with the finest details and nuances while speakers disappear.
- Price starts at $7,590 (special AXPONA price)
“The PureAudioProject Trio15 Coax generates an engaging, compelling and fun listening experience. Instruments have a realistic density as the speaker builds the music to the extremes from its excellent upper bass/ midrange. It throws a vast room-filling sound field, is dynamically expressive, and demands that you pay attention to the music. It “plays the room” and offers up a “you are there” perspective versus one that’s “they are here.”,
Read the recent ‘Mike Fremer’s Tracking Angle’ review (by Ken Redmond)
“The resolution and nuance retrieval capabilities of the 10” Coaxial driver are pleasantly beyond what I had expected! The larger mid-bass driver and the tweeter are able to send through to the listener as much information from the signal as I hear from the electrostatic, omni, or line source designs I have used.”
”The Coaxial driver is so generous that it reveals the quickness in the fingering of the strings, and is plush enough to capture a wide range of detail, from the initial scraping and release of the string to the peak of its vibration. For the better part of twenty years, I have worked to get systems to present the bass line clearly. It is not easy to get an audio system to reveal the bass line distinctly.”
” The Trio15 Coax10 is masterful in moderating shrillness, whether instrumental or vocal. In your system, relative to the other PureAudioProject center drivers, the Coax10 will be warmer sounding and riper sounding.”
Douglas Schroeder, Dagogo
Horn1 (Wide Range 1.4” Horn)
With Trio15 Horn1 the border line between live performance and reproduced music simply disappears. Instruments become live… live in front of you… fast, dynamic and full body.
With it’s unique soft Polymer dome, large throat, strong Neodymium motor and wide wood waveguide, Horn1 presents a warm and smooth sound, with all the dynamics, fast-responce, clarity and resolution great horns are known for, but without any typical ‘horn-harshness’ whatsoever !
With your eyes closed, this will be impossible to point on the drivers. D’apollito configuration sets the sonic-center-of-mass exactly at the horn throat, and this turns the Trio15 into kind of large point-source disappearing speaker.
Trio15 w/ Horn1 ability to excel with all genres made it one of our most popular models.
If you are a fan of horns and/or want to experience the magic of horn-based speakers, you should seriously consider this highly acclaimed and award-winning model, the Trio15 Horn1.
- Price starts at $8,490
“Great as these speakers sounded at Hickman’s house, I was still expecting that pinched horn sound. None is present in the Trios – zero.”
“Hours pass by and on many occasions, what begins as an afternoon listening session, lingers far into the night hours – even with daylight saving time in full effect. A wide range of music proves highly engaging and exposes no flaws in the Trios. They play everything you can imagine with ease.”
“Enjoyable as these speakers are, you need to hear them. Their clear, dynamic sound reminds me of so many aspects of other speakers that I truly love. They disappear in the room and provide pinpoint imaging when required like a great mini monitor, yet, they paint a vast, diffuse landscape like my Magnepan Tympanis, all the while, having the sheer sonic punch of the Klipsch LaScalas.”
Jeff Dorgey, ToneAudio
Voxativ (Full Range)
If you are a fan of Full Range Drivers and/or looking for music experience that is just life like balanced, effortless, spacious… you should look at Trio15 with one of the Voxativ drivers.
Full range drivers are known for their rich, organic and musically engaging presentation. Being built with one motor (magnet system) and one membrane, there is no shift in phase nor in sonic signature all the way from the low mids to the very highs. This causes sonic signature stability and eliminates the need to cross two drivers with two different sonic signatures (mid and tweeter) in a critical listening frequency zone.
Many describe the sonic experience of Trio15 with Voxativ drivers as ‘organic’ and ‘realistic’. Indeed, their build, their blend with our light and fast15″ woofers, the short audio path crossover (1st order, series), and the D’appoiito (WMW) configuration, all make music sound and feel as if ‘musicians are in the room’; which is in many cases how our customers describe the Trio15… (read Customers Feedback and Revues below).
Over the years Voxativ full range drivers won their position as the ‘gold standard’ among full range drivers, and we have selected three specific models that work at best in our designs.
All three sound extremely natural, rich and smooth, with all the clarity, resolution, and beautiful sonic finesse. No typical mid ‘stoutness’ whatsoever that many full range drivers suffer from. They differ in their build and this is reflected in each one’s unique sonic features.
AC-1.6, a classic full-range driver, with Ferrite motor and light Japanese paper cone.
The AC-1.6 built quality is simply top-notch and it offers a truly emotionally moving music experience. Smooth and full-body, transparent and airy, with all the resolution and clarity, this driver is a ‘classic’ and a ‘no-hesitation’ choice for Trio15.
The AC-PiFe, Wood Cone Ferrite Driver.
This unique driver adds to all the features of AC-1.6 an unprecedented sense of sonic-mass and realism. Instruments and vocals not only ‘sound great’ but also are ‘physically felt’. The music experience with AC-PiFe in Trio15 is simply addicting!
The Field Coil, AC-X
This driver is a league of its own and its musicality and sonic performances are on a level that is rare with conventional drivers. The dynamics between the instruments and their definition in time and space are no less than striking. All sounds extremely organic and smooth, with resolution to the finest details coming from the depth of the driver in a totally effortless way.
AC-X design and build, as well as the AC-1.6 and the PiFe are a blend of engeneering, art, and deep understanding of drivers technology and acoustics…
- Price starts at US, $7,990
Pete Davey, Positive Feedback (Trio15 w/ AC-1.6): “Initially I wasn’t sure what I would experience, but truth be told I was a bit worried that the sound would be non-cohesive, smeared, bass-lacking. A skeptic at heart, I know. I soon found out, however, I was wrong, very wrong in my assumptions. I couldn’t believe the amount of bass coming from this system, the delicate highs and perfect mids. It reminded me of a very cohesive ESL speaker, almost a line source sound coming from one huge driver array.”
“Okay, so what makes this system so magical? It’s really a construct of several pieces that, once assembled, create a state of the art speaker system that, for its price, can rival just about anything on the market today.“
“I can go on and on about these speakers, how they’ve changed my life and perspective on high end audio”
Trio15 Real Life Photos
“I’m REALLY happy about the upgrade from Trio15TB to Horn1 I made. I was a bit worried how this turns out since I was also happy with TB’s and how dipole is working in my room. But when I got burn-in completed, I noticed that sound was well controlled (~coherent?), accurate, pure, organic, enjoyable sharp with high definition but not at all fatiguing..just pure joy. Everything I’m listening is rolling..foots are tapping or head is banging or… 
AND the most odd thing is that I’m singing along music and I’m anything but a singer. Absolutely great speakers. Thank you.”
Jarno, Finland
“I love the speakers (Trio15 PiFe). Love them. I find them perfect for me. I’ve usually had a revolving suite of 6-8 different sets at a time and it’s been a pain. Hard to move around, sell, ship (especially Magnepans), and drove my wife crazy. That has ended. The flexibility inherent in the open baffle concept and your business model mean that this is the last and final speaker system for me. I wake up looking forward to exploring fascinating new sounds every day. Thank you!”
” I received my new 10″coax with the 1.4” horn tweeter and after some break in my first thought was my system sounded more analog than ever before. I am a computer audiophile and with the new driver and crossover the upgrade has exceeded my expectations. The highs are world class, All the micro details in my music are discernible without any harshness. Transparency as well as point source sound are amazing…… Ze,ev is very passionate about music and it is displayed in his product. He is a down to earth guy and takes time out to speak to his customers. I cannot say enough about PAP and their products.??????”
Gilberto Gonzales, NY, USA
More about Trio15 Components
Woofers
Center Driver
- Our PAP-Horn1 is a wide Range Horn, designed specifically for PureAudioProject Trio15 and Quintet15. It features a large wood waveguide and a 1.4″ compression driver with strong Neodymium motor and soft Polymer dome.
- Our OB-COAX10-H1 is a custom made Coaxial driver with 10″ paper cone woofer and 1.4″ Polymer Horn Tweeter mounted on the same axis. Both, the 15″ woofers and the 10″ center driver share similar materials and design guidelines. This adds to the consistency of the sonic signature along a wide frequency range.
- Voxativ (AC-1.6, AC-PiFe, AC-X Field Coil), Full Range Drivers.
- ESS-Heil AMT1 (optional upon request)
- Beyma TPL 150 Horn (optional upon request)
- Tang Band W8-1808 (optional upon request).
Passive Crossovers
- All Trio15 models come with passive crossovers.
- Trio15 Horn1 and all Trio15 Voxativ models are supplied with our modular Thrier Crossovers while Trio15 Coax10″ is supplied with a dedicated pre-built crossovers.
- The Thrier Crossover is a two way first order, and can be set by a simple jumper to serial or parallel topology.
- The Thrier boards have a third channel for future or optional use (such as Super Tweeter).
- All components on Thrier boards are mounted onto golden screw terminals. This allows swapping the components with only a screwdriver and experimenting various types, brands and grades of capacitors, resistors and coils… One can even try different components values to match the crossover to the personal sonic taste, physical condition, room and gear. We guide and support this process when needed.
- No soldering nor any technical skills are required to work with the Thrier Crossovers, only a screwdriver.
- Trio15 Coax10″ Crossover is a three way fourth order topology with top-grade audio components e.g. Silver/Gold Oil capacitors, copper/paper foil coils and the recently released copper-manganin foil resistors.
- Trio15 Coax10″ crossover is pre-built (soldered) but one capacitor and all resistors reside on screw terminal for optional fine tuning.
Optional: Bi-Amping
- For fans of Bi-Amping we offer the PAP-C1 Active Analog Crossover, designed and manufactured for PureAudioProject by Nelson Pass, FirstWatt.
- We also offer ‘Bi-Amping Distribution Boards’ for easy internal wiring.
More Technical Data
- True Point Source D’appolito Design
- Sensitivity > 96db (in a typical room).
- Nominal Impedance: 8ohm.
- Frequency Range: 29-32hz to 20Khz (in a typical room).
- Drivers: see above: About Trio15 Components.
- Crossovers: see above: About Trio15 Components.
- Typical distance from rear wall: 2-4′ (60-120cm)
- Distance from side walls: Any
- Size: W:54cm H:116cm D:27cm | W:21.25″ H:46.67″ D:10.63″
- Weight: starts at 55lb/25kg