At the core of our open baffle speakers is a slim chassis, featuring a carefully engineered frame and wooden baffles on which all audio components reside.


All the sonic bliss of large scale Open Baffle Speakers in small to medium sized rooms.


Our most versatile model for real-life music experiencein any room size


A true Wall of Sound Open Baffle Speakerfor medium to any size rooms

Trio15 Classic

A Trio15 but with a ready-made out-of-the-box ‘Classic’ Open Baffle Enclosure

The various models differ by their size, while their final configuration is defined by your choice of Center Driver and Finishing.

Center drivers, baffles, cables, even crossovers parts; all easily interchangeable and upgradeable giving you the freedom to explore multiple models and sonic options.


For maximum versatility and match to your room size and acoustics, your sonic and music DNA, and your favorite audio gear.

Our speakers are modular, open and assembled by you. No technical background whatsoever is needed. The freedom to choose the model, the center driver, and to experiment with different internal wiring and crossover components is all yours. You can even scale up from one model to another by a simple extension without replacing audio components.

“I’ve had the honor of having experienced the PureAudioProject “Trio” system for a while now, and it is one of the most eye-opening experiences I have in a long time. I have reviewed lots of speaker systems as well as other ancillary systems, but none of them have captured the essence of the music like this system has..״

Pete Davey, Positive Feedback


For organic, no-fatigue music experience, and long listening music sessions

A loudspeaker configuration developed by and named for Joe D’Appolito, in which a high frequency driver, or tweeter, is positioned between two midrange or low frequency drivers that each cover the same frequency range. This is the case with our Trio and Quintet speakers. The two 15” woofers are connected in parallel and positioned in a vertical symmetry around the Center Driver. This configuration defines the ‘acoustical center of mass’ exactly at the center of the speaker, that then becomes kind of a large size ‘source-point’ speaker. This acoustical symmetry is maintained thru the entire frequency range and the result is 1) sense of transparency, realism and no fatigue and 2) an absence of any sudden changes in directivity with frequency. This may not mean much for monitors where there is a limited listening area, but in a typical room where a large percentage of the sound is reflected by the room, these effects are dramatic and help the so-called ‘speakers disappearing act’

“The most amazing part is that the music just seems to flow effortlessly through them… So probably for the first time in many years i am actually enjoying the music rather than trying to analyzing my system!!”

Customer, Netherlands


For reliable music reproduction and overall seamless sonic blend

Our center drivers offering covers three major genres of audio drivers technology, full-range, horns and mid/tweeter. Each offers it’s unique sonic features to allow you to choose the one for best match to your sonic and music DNA, your room acoustics and your favorite audio gear.


For effortless and dynamic sonic performances with any amplification

Duet15, Trio15 and Quintet15 are high efficiency, 96db speakers, and as such they can play with amps starting with as low as 2.5w. This makes all 15″ speakers ‘friendly’ with Tubes and Class A amps.

They are highly responsive and when fed by high power solid state amps they easily accept authority and control, and reveal the original dynamic range of the recordings and the tiniest musical nuances.

With time, the sonic performances of our speakers with low power amps made them a prime choice for many owners of tube amps, tubes and tube amp manufacturers and professional reviewers alike.

“I have been pinching and kicking myself for the past several weeks as I have been romancing the Trio15 Horn1; pinching myself to see is not an illusion, that the experience is as magical as I’m hearing, and kicking myself because I have been a reviewer for more than 12 years and only now I’m relishing lower power High End in a big way”,

Douglas Schroeder, DAGOGO


”Well, I’m now the proud owner of these wonderful speakers! My god, how good does it get?!… Drums sound like drums, pianos sound like pianos, etc., etc., etc. I have to listen to my whole library again!”

“I thought it appropriate, on the one month anniversary of the receipt of the Trio15 Classic, to write you for a couple of reasons. Firstly to say what a wonderful experience it was working with you both through the ordering and receiving of these speakers and secondly to tell you how pleased and thrilled I am with their performance… they produce a truly glorious sound, the mid range is silky smooth and so effortless… They have a style, a chic style, that belies the strength and power they possess.  Quite a remarkable speaker, without a doubt.”,

“I must say now the Soundstage is as deep as I have ever heard and cannot tell where the speakers are. I’m in an atmospheric bubble…”

“After having the Trio 15 Horn 1 for about 3 years now, I won’t be able to go back to box speakers”

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