Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
Product Strengths
- Expansive and natural sound due to its open baffle (dipole) design
- Excellent resolution exposes the uniqueness of every recording
- Midrange is a highlight, resolving detail while remaining smooth and musical
- High transparency and excellent integration of the two drivers
- Fast woofer packs quite a visceral punch
Product Considerations
- Requires significant break-in time (approximately 200 hours)
- Requires breathing space and careful positioning for optimal tonal balance
- Needs to be at least 3 feet away from the front wall, slightly delaying the back wave bouncing off the front wall
- Loses a bit of dynamic contrast at very low listening levels
Comparisons (according to reviewers)
- Vs Vandersteen VR-35s—Duet 15 Prelude has more enveloping bass than the tightly controlled bass impact
Takeaway: The PureAudioProject Duet 15 Prelude is a first-rate loudspeaker that offers an expansive sound with excellent detail and is terrific fun when played loud. It will fill the heart with joy while deepening one's understanding of the importance of music.
All
Seven Eyes Duet15
reviews

Manufacturer details
- Woofer: 15" proprietary
- Driver: Voxativ AC-1.6
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- Offers a unique modular design, enabling users to customize the sound by interchanging drivers, baffles, and crossover components.
- PureAudioProject open baffle speakers provide an open and airy soundstage that surpasses typical box speakers, creating a natural and immersive listening experience.
- Employs a direct-to-consumer sales model, allowing for exceptional value and competitive pricing by eliminating traditional retail markups.
- Their customer service is highly responsive and helpful, providing extensive guidance and support throughout the assembly and tuning process.
Select products
Trio10 Heil AMT Open Baffle Speakers:
- Positioning: The entry-level model in the PureAudioProject lineup, ideal for small to medium-sized rooms.
- Description: Features the legendary Heil AMT driver that offers excellent clarity and detail. Unlike the larger models, it is compact and suitable for smaller spaces, providing a huge soundstage and life-like presence without the need for high power, making it a cost-effective choice for those with limited space and budget.
Trio15 Open Baffle Speakers:
- Positioning: A versatile model suitable for medium to large rooms, offering a modular design with various customization options.
- Description: Features a selection of top-grade center drivers and audiophile-grade crossovers. Compared to the Duet15, it offers greater flexibility in driver selection and room adaptability.
Quintet10 Stellar Wall of Sound Open Baffle Speakers:
- Positioning: A high-end model that provides a "wall of sound" experience, suitable for medium to large rooms.
- Description: Features four 10-inch woofers and bespoke center drivers, delivering speed, accuracy, and refinement. It offers a more expansive and emotionally involving sound compared to the Trio15.
Quintet15 Wall of Sound Open Baffle Speakers for Large Rooms:
- Positioning: The flagship model, designed for large rooms and offering unmatched presence and realism.
- Description: Features eight 15-inch woofers that deliver a true "wall of sound" experience. It surpasses the Quintet10 with its larger scale and deeper bass.
Our take on the brand
Look inside the brand
Our interview with the brand
What are two key technological innovations or strong opinions that differ you from other brands?
What's your approach to customer support?
What are your favorite tracks for showcasing the strength of your products?
What other products pair best with yours?
Used
PureAudioProject
What if you spend more?
What competes at this price?
Our Summary
Product Strengths
- Exquisitely detailed sound with texture and resolution
- Exceptional imaging, creating a precise phantom center for dialogue
- Excellent bass for a dipole planar speaker
- Modern aesthetics with a stylish, flat, minimalist design
- Clean, pure sound with no cabinet or horn coloration
Product Considerations
- Pricey
- Power hungry, requiring a robust amplifier
- Dipole design is not suitable for placement against walls
- Limited optimal listening area due to dipole dispersion pattern
- Could use a subwoofer for some applications to extend bass response
Comparisons (according to reviewers)
- Reviewer suggests that the Magnepan LRS, with the addition of a sub, could be a cheaper alternative
Takeaway: The Diptyque DP 115 speakers offer an amazing listening experience with clarity and responsiveness, and are visually appealing. They would be a great addition to any high-end audio setup to enjoy music, movies, and games.
Video review
Our take on the brand
How to buy
Speakers
Search all hifi products
Explore our database of 10,000+ new and 25,000+ used hifi products.





























