Quintet15 Horn1

“Excellent speaker, well done ? exceeded my expectations, thank you. Can you please add the message to Customers and Fans group please. I am enjoying your creation now.”, Ganesh G., Australia

Trio15 Classic w/ Voxativ AC-PiFe and PassLabs INT25 Amplifier

Hi Ze’ev,

I picked up my Pass INT-25 last Friday, and then set up over the weekend with my PAP Classics.
Holy smoke!!!  As the expression goes…??.  And I was concerned about a trade off in power for musicality!!!  ???
I need some time to digest this new amp and it’s sonic presentation.  It eliminates some questions I had, however will probably raise some others, and so I thought it would be best to postpone our conversation a little further until I organize my thoughts and questions.
My first impression of the PAP / Pass INT-25 pairing is ???.  NO REGRET.  I feel fortunate that my connection with it was facilitated through your enthusiasm about your experience with your XA.
Thanks Ze’ev.  I’ll be in touch.
————————  a week later  ————————


Until we talk I am simply affirming that your experience with your XA led me to considering the INT, and liking so much what I read about the INT I decided as you know to “go for it”.  I am glad I did!
Wow, what authority they seem to exhibit with the Classic Voxativs!  Any concerns I had about the amp being shy on authority or power with the PAP’s have been dashed.
Presentation is deep and detailed and well sorted….I am seeing that.  The finesse and sonic mass you discuss about the Voxativ PiFe’s are certainly brought out nicely by the amp, and seem to be optimized with the Pass/Voxativ PAP pairing.
Thanks Ze’ev!

 Mark H., Customer, USA

One Time Show Special Offer: Trio15 Classic PiFe (that will play at the Pacific Audio Fest) –


Trio10 MundorfAMT, Special Offer

We still have in our stock few crossovers, AMT drivers, and even two of the original frames for our award-winner Trio10 MundorfAMT. Due to supply chain issues during Covid we removed the Trio10 speakers from our offering, but we are now happy to offer these remaining sets for a one-time Stock-B special price.

Our offer is 1) complete speakers with brand new German Oak Baffle, or 2) excl. baffles for those who can built these themselves, or 3) audio components only for DIYers that would like to build their own version of the Trio10 MundorfAMT.


Special One-Time Offer:

Complete Trio10 MundorfAMT w/ German Oak Baffles

  • USA: US$4,990, incl. shipping
  • EU: EUR4,990, incl. shipping and VAT

Trio10 MundorfAMT excl. Baffles

  • USA: US$3,900, incl. shipping
  • EU: EUR3,900, incl. shipping and VAT

Audio Components for Trio10 MundorfAMT

  • USA: US$2,900, incl. shipping
  • EU: EUR2,900, incl. shipping and VAT

This option will include:

  • 4 x PureAudioProject Proprietary 10” woofers
  • 2 x Audiophile Grade Dedicated Crossovers
  • 2 x Mindoro AMT 23D.3
  • Support with design guidelines and critical build data

More About TRIO10 Mundorf AMT

Narrow Open Baffle for Small to Medium Size Room

Crystal clear, full body, bass slam, transparent… are only few descriptions these unique 16.5″ (42cm) wide open baffle speakers received from reviewers and customers. Despite their narrow width, the Trio10 Mundorf AMT fills almost any room with not only great musical authority and presence but also with a stunning sonic mass, clarity and transparency that are rare to find at almost any price range !

Trio10 open baffle speakers feature our proprietary 10″ Bass/Mid Woofers, that were designed specifically by Morel for open baffle and PureAudioProject. These double magnet high-grade construction drivers play deep, fast and clear bass with extreme power and presence, while at the same time they are sweet and full body mid performers. This allows smooth integration with the Mundorf AMT 23D6.1 drivers.

Product Description

  • Only 42cm wide, the Trio10 MundorfAMT plays deep, full body, crystal clear bass down to 40HZ and provides un-comparable sonic clarity and image.
  • Featuring PAP1075, a double magnet 10″ Bass/Mid Woofer designed by Morel specifically for Open Baffle
  • The PAP1075 mechanical and electrical features make it also a great performer of mids in Open Baffle
  • Top grade Mundorf AMT Tweeter AMT 23D6.1, page 22-26 in Mundorf Catalog
  • Perfect time and phase alignment achieved by recessing the AMT Tweeter to the right position
  • Crossovers are Audiophile Silver-Oil/Foil Grade feat.  Supreme EVO Silver/Gold Oil CapacitorsMCoil Foil Coils and MSupreme Audiophile Resistors

More features:

  • Size: width: 42cm, height: 115cm, depth: 27cm
  • Sensitivity: 89db
  • Impedance: 8 ohm
  • Baffles Material: German Oak, Natural Oiled, Natural and White Oil, Smoked and White or Coffee Oil

Best of RMAF TransRMAF 2015: these speakers (Trio10 MundorfAMT) had it all – superb soundstage, perfect tonality, super open spacious sound that just destroys the walls in the room, all things that great open baffle speakers give you. But, what set this system apart was the laser like focus and lack of “misty” presentation almost every OB speaker has. Plus BASS SLAM. I know you never thought you’d see the words bass slam and Open Baffle ever uttered together. But there it is. I am an OB lover, it’s what I’ve run in my home system for years and years and so I’m a bit jaded about them. But this room raised the bar substantially over every other available OB system I’ve heard. Massive congrats to them for this achievement.”, Jason NotesAudioCircle, Best of RMAF

“Just a beautiful, huge soundstage with real dynamic punch. Even sitting off axis they sound stellar… Man these speakers (Trio10 MundorfAMT) really lock in and ratchet up a LOT. Love it. I think this might actually be best sound in show for me, personally.”, Tyson Notes, AudioCircle, RMAF

59_7PmZ4SL“The PureAudioProject bridges the gap between pure DIY and completely hands-off prebuilt by shipping flat-packed open-baffle speakers which the buyer assembles. This results in providing drivers and crossover components at a level of quality unprecedented even at several multiples of the Trio10 MundorfAMT’s price. PureAudioProject removes the guesswork and provides the opportunity for audiophiles to be involved in creating speakers that out-perform speakers costing much more…”Donald Shaulis,  Complete Review


Special Offer for DIYers

Get the PureAudioProject  genuine audio components for your own DIY version of the Trio15 w/ TB W8-1808 (or compatible) (Limited stock) The set includes: 4 x OB-A15NEO woofers 2 x Audiophile grade crossovers for Trio15TB Build guidelines and support with critical information The commonly used Latin expression to explain erectile dysfunction “impotentia coeundi” simply means […]

Don’t mess with 50,000V…

The 8 unfinished baffles came in one box. That box contained only the 8 baffles… no extra samples from the same wood. The samples were to be provided so I could  experiment on the 4 step process of finishing the baffles in the manner in which I wish to have them finished.

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The first step is a 50,000 volt “burn” that creates what I would describe as an actual burn pattern into the surface of the wood that is reminiscent of lightning. The pattern and results are different for different species of wood, and thus the need to experiment on the method (voltage, spacing of the contactors, etc.) to achieve the desired results. The carbon from the burn must then be removed from the surface of the wood with steel wool, wire brush and fine sanding. The next step is
applying the correct color of stain or coloured wood oil to achieve the desired color…

Hi, Ze’ev and Rachel,

At 8:30 PM the Grant Fidelity RITA 880 powered up the Q15’s….beautifully!

The horns are awesome right from note one. So much presence… more “live”, more nuance. They surpass the MARTIN Logan Montis already and they are 199.5 hours away from being broken in. Can’t imagine (well, I think I can) how great they will sound then. Even now, the double bass opening up on track 11 (Diana Krall, Love Scenes) tops the ML Montis..(4 x 15 x 2 SHOULD kill the 10” x 2!)… and they do.

I reset the furniture and have 6’2” from speaker centre to speaker centre… it looks good and sounds great. Photos attached. I may abandon the renovation of the old 1940’s radio cabinet… shall ponder on that. I have a different idea.

These horns are GREAT!

Rachel, thank you so much for unequivocally recommending Ze’ev’s speakers. It has been a great experience “building them” and now the real fun starts.

Ze’ev, I was TOTALLY IMPRESSED with how well everything is Engineered, and how perfectly everything fits together. Not one hole out of alignment. I did not sweat even ONCE the entire time I assembled everything. WELL DONE!!!

Actually, Ze’ev, I was reading a blog on Audiogon 2 days ago where a fellow (and his wife) are building a new home, with a 25’ x 35 ‘ dedicated music listening room, with vaulted ceilings from 12’ rising to 16’. He was asking for, and was getting “tons” of replies to his request for suggestions for a HORN speaker system. I read the entire blog(VERY long and at times excruciatingly boring) and no mention from anyone about PAP. I could not resist responding, I’ll send you what I wrote… he responded immediately, asked lots of great questions, and I wrote back a very lengthy reply (I think this is all on the Audiogon blog, so all theses smarty “audiophiles” can read all of it.)

Well, he and his wife looked at your web site thoroughly, watched several U-Tube videos about the Q15 and replied that they are really interested. They like the looks a lot! And the efficiency for tube amplification, small footprint, height is great for their soaring ceilings, and the price is bang-on their budget!

He’s “ willgolf” on Audiogon. He asked me to keep him posted on my assessment of the sound as the break-in period progresses.
You might have another customer soon… several months before the house is completed… so not for a while. I think he’s in the USA… I’ll let you know more when I can.

That’s all for now… time to change the CD. See new photos below. Rachel, send to China!!

I hope my emails are not annoying.

sep 7

Hi again, Ze’ev,
I just posted this comment on Audiogon to the question someone asked, “What opinions are there with respect to any speakers that are considered to be “giant killers” to some of the best most expensive speakers pt there?”
I took some liberties in making assumptions… I hope I did mot say anything that you find my mid representative.
Ken .

Very few, if any, contributors to this excellent question are providing REASONS why a specific speaker is a superior VALUE for the price…IE, “a true “giant killer”.
Here are the money reasons why this relatively little known brand IS:
1) they are shipped in a DIY “kit” in between about 4 and 7 packages depending on the model chosen (from 4 different countries, each of which make the specifically selected components)
2) Shipping costs are therefore substantially more cost effective. It’s cheaper to ship 7 “little” boxes that 2 gigantic ones that require a pallet and special handling and delivery requirements.
3) they are shipped from the individual manufacturers of each of the components DIRECTLY to you…not to a retail dealership, who needs to pay costs for retail premises, staff, commissions, insurance, electricity. heating and air conditioning, business taxes, inventory, etc., etc. This is a HUGE cost of buying at a retailer! Ask yourself, what’s the mark- up (wholesale to retail) by the dealer and WHY does that have to be that way? Well, it does have to be that way or the retailer will nor be in business.
4) YOU assemble the components. It’s simple, if you know one end of a screwdriver from the other. It took me 5 hours. Therefore, I paid no one a dime for the cost to have someone else do that.
5) the reason these speakers are so “under the radar”, is because the “manufacturer of the speaker systems”, does not spend vast sums of money advertising in trade magazines. Huge savings in his overhead, making it possible for him to pass saving on to the purchasers while still achieving his required profit. Every speaker company requires profit!
6) So how does this speaker system “manufacturer” sell? Trade shows, and word of mouth…personal referrals, and from the most extensive and informative Web site I have ever seen… smart marketing in the money sense. AND, number one, VALUE FOR OUTSTANDING SOUND!!! Without achieving that, you are dead in the water. (Well, maybe not. It’s surprising what people will buy with such little due diligence.)

As an additional bonus, you can customize them with your choice of several different (nearly) full range driver choices, including Voxative models, Tang Bang, Horns, etc. Etc.
Additionally, those drivers are exchangeable/upgradable in the future with the easy modification to the crossovers (which you also assembled… with nothing more than that same screwdriver. Therefore, you can upgrade with out selling 80 % of your speaker system.

SOUND: the model I selected for a rather large listening room, (PAP Quintet Horn 1 Neo 15) with 4 15” neodymium magnet (very fast) woofers, (in each speaker)  NO subs required!!!! …. exceeded IN EVERY RESPECT, the excellent sound of the Martin Logan Montis that I had enjoyed for the past 5+ years.  And I mean EVERY respect! So go through the 50 or so words we use to describe sound from speakers, and check off every one of them.

This brand offers several models, with numerous choices for “centre” drivers to customize the sound for your preference.

One  last comment. The model I chose, besides being able to fill my large room, are about 96 dB efficient. I can blow myself out of my chair with my 8 watts, but apparently, 4.5 watts will do the same. That’s what  they are demoed with at the trade shows.  You can save a LOT of $$$$ on not needing huge, expensive power amplification!

At  double the price of new, these would likely rival many of the “best” out there, and simply blow away the vast majority!

You want to know WHY a speaker is a “giant killer…. now you know.

Do yourself a favour, if you know one end of a screwdriver from the other, (and can use an Allen wrench) and check this brand out  before you buy either new or used.

I have no vested interests… just sharing some FACTS to consider, prompted by the question that was asked.  I am extremely grateful to the person that l learned about this little known brand from, thank you again, Rachel!

PS: AI wish I could post a photo of my pair… I customized the open baffle German white oak
in which the 15’s are mounted and these are now( I guarantee) one if a kind, in appearance. Ken

End of 2021 Demo Stock Clearance

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Quintet15… From Voxativ AC-1.6 to Horn1…

In the previous post Mr. Matt Wilkins describes with details how after spending a year plus with Quintet15 Horn1 he swapped the center driver to Voxativ AC-1.6 and felt this was just the right move for him. He even went one step further and  purchased the Field Coil AC-X. Read all here:  Quintet15… Bi-Amping… From Horn1 to Voxativ AC-X… Journey not yet Completed…

It goes without saying how happy Matt is with Quintet15 w/ Voxativ, but just at about the same time, on the other side of the planet, in Sidney Australia, Mr. Ganesh Ganeshalingam, a happy Quintet15 owner with Voxativ AC-1.6 decided to try the Horn1.

Items shipped, break in was completed and here is Ganesh’s feedback that is pointing 180degrees from Matt’s one…

So who was right and who was wrong? Is Quintet15 Horn1 better than the Quintet15 Voxativ or vice versa?

As you can read below, the answer is ‘both are right’ or ‘no one is wrong’ !

Both configuration are extremely musical and enjoyable but at the same time they do differ. The answer therefore will depend on whom do you ask, and indeed, personal preference is very personal and these two posts confirm this statement!

Enjoy the reading !


On Dec. 02, 2020 we have received the following Feedback:

Hi Ze’ev,

Excellent speaker (Quintet15 w/ Voxativ AC-1.6), well done ? exceeded my expectations, thank you.

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Can you please add the message to Customers and Fans group please. I am enjoying your creation now.
May I please have quote for horn? I like to have both and swap between them to keep me thrilled ?
Thank you ?
Bye the way I have disconnected my sub, it was a big relief for me too.
Thank You ?

The Horn1 was purchased on August 2021 and on October the 7th we received the following review:

What makes me qualified to write a review may you ask, I have been an audiophile since the day I knew how to operate a radio, I grew up in times the glory of vacuum tubes was coming to an end, and the transistors were taking over. I was fortunate to hear my dad’s record player and tube amplifier (Rogers cadet III) proudly made in UK. The amplifier was only rated 11 watts RMS and speakers were very similar to today’s Klipsch Cornwall IV, I can’t remember exactly, because I was too young and many moons has passed since then. The record player was quickly replaced by cassette players. Then came the revolution of the CD, and now streaming.

I have enjoyed countless HiFi components and many different speakers like Wilson Audio Watt Puppy 7.0, that stands out like an Everest, a bench mark for all the speaker manufactures to aspire too. I have been on the hunt for speakers for a long time to replace my aging Wilson Watt Puppy, and I was becoming tired of auditions and review’s. During the hunt to replace my Wilson I remembered auditioning Jamo R909 back in 2008. The sound stage was big, lively and you felt like you are at the location right in front of the band. 

But unfortunately, Jamo does not make open baffle speakers now, and I wanted something new. So why I did not purchase the Jamo R909 back then? Like all of us I was very convinced by the theories of how sound wave travels and how it cancels at certain points if the waves from the front and the waves from the rear meet, creating dead spots and so on and on. This created a negative impression abut open baffle speakers in my mind and I thought they are inferior to traditional speakers.

Till I saw the review by Steve Guttenberg on Pure Audio Project Trio15 Classic, he mentioned about the 15-inch drives and open baffle sound stage. This brought back memories of my dad’s 15-inch speakers and audition of the Jamo R909. Looking at the Pure Audio Project Quintet 15, I was impressed, and started to read all the reviews I could find. Finally, I contacted Ze’ev, the creator, a man very humble but with a vast knowledge of open baffle speakers.

My initial order was for Quintet15 with Voxativ AC 1.6, the speaker was impressive and the build quality was second to none. The sound stage was wider and deeper (3D Sound Stage)than the Watt Puppy. The highs were smooth and natural compared to Watt Puppy, the Watts Puppy’s high was shrieking and made you fatigued after few hours of listening, due to the use of titanium tweeters.

The mid of the Quintet15 was very pleasant and natural, and represented natural human voice, when compared to Watt, I found the Watt’s mid to be a bit shouty and in your face. This does not mean that the Quintet15 mid is rolled-off. 

What about the bass you might ask me? The Watts are hard to beat in this department, that does not mean that the Quintet 15 is lacking in bass. The bass of the Quintet15 more natural and precise, but I personally would like to have more of this, so I have added a subwoofer to complement the bass. 

Now all of you would ask me all that s fine but what about the Quitet15 Horn1? I say to you remember what I said in relation to the sound stage between Quintet15 Vox and the Watt, now take that image and double it, and you are not even close to the sound stage that Horn1 produces. It’s like clearing the wax from your ears. 

The biggest improvement in sound stage and sound quality for the money is purchasing the Quintet15 and second biggest improvement is upgrading to Horn1, and the third biggest improvement is moving to tube amplifiers. Take it from me, give Horn1 a try and you will never regret it. Quintet15 Horn1 is my new reference, and my only advise to all audiophiles out there please give the open baffle speakers a try. Like the famous quote “if you never venture out, you will not know what you have missed out”, as far as traditional speakers go, they are obsolete like the fuel car. Take the Quintet15 Horn1 for a spin and I bet you will want more of it. Plese do not forget the key to enjoying to music is a good reproduction of 3D sound by your speakers. This 3D sound image is very well achived by Quintet15 Horn1, qudos to Ze’ev.

Ganesh Ganeshalingam from Sydney, Australia.

The associated electronics also play a role, so I have listed the components below:

Source: Ayon CD 5s, Dell Laptop (used as streamer via USB), Denafrips Avatar CD transport and Yamaha CD – S2100.

DAC: Ayon CD 5s, Denafrips Terminator 2.

Preamp: Terminator Athena.

Power Amplifier: Rogue Audio M180 mono blocks (KT120), and Willsenton R800i (805).

NB: Please excuse the mess that you see in the photos, and audiophiles work is never done, it always evolving or may I say continus work in progress. Building new Hi Fi shelves, and sound panels.

Analog Sound™ and PureAudioProject

While Line Magnetic is using PureAudioProject speakers since 2015 at their premises in Zhuhai and at shows in China, it was in June 2019 that ‘Analog Sound™’, a sister company of Line Magnetic from Foshan, invited us to participate at two shows with them and to bring along two of our speakers sets, the Trio15 and the Quintet10. Analog Sound™ is a very unique company, offering amps that pay tribute to Western Electric and are designed to highest and most updated sonic grade.

The trigger for the invitation was an after-hours listening session at our showroom in Dalian, where we had our Trio15 with Voxativ AC-X (Field Coil) and our Quintet10 with Voxativ AC-1.6. Mr. Qian from Analog Sound™ brought their AS125 Integrated Tube Amp, with 211 output tubes. The 50kg amp was placed on a small hotel table, cables were connected, and play was pressed on the ‘The Fateful Moment’ from ‘Three Kingdoms’, an album by Rhymoi Music. Chinese trumpets and drums made their opening and all who were in the room, including myself, simply froze…

I don’t remember myself being so surprised by what I heard. Sonic mass was unprecedented. Trumpets sounded full body like never before on our speakers. Music felt so natural and realistic that we all stood there… music kept playing… while we were simply left speechless!

“We have two audio shows coming in Beijing, in June and in October” said, Mr. Qian, “would you like to join us?”…

Well… the match between the AS125 and our Trio15 was so good that I didn’t have to think twice. “YES ! We would love to do that !” was our immediate reply.

The first show was two weeks ahead so speakers were packed and instead of being shipped to our warehouse they were sent to the show in Beijing.

These were not only Analog Sound™ and us who enjoyed the match between  the AS125 and PureAudioProject speakers. Quite few customers use this combination to their full satisfaction and here are few photos.

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Ze’ev (Wolf) Schlik