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Cameron Oatley
ExtremeHiFi
Website author headshot
Julian Shapiro
ExtremeHiFi

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.

What are hifi reviews useful for? (1) Identifying products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've heard (this means they probably are legitimately great). (3) Identifying a product's attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we often discount what reviewers say because they heap praise on most products—and are often apprehensive about publishing strong criticism or comparisons between products. Further, they seldom have more than a few products on-hand, often relying on their memories to compare past products. Always listen for yourself.

Manufacturer details

  • Frequency response: 22 Hz - 21 kHz
  • Efficiency: 94 dB/W/m
  • Impedance: 4 Ohm
  • Type: 3-way
  • Drivers: 15" dual voice coil woofer, 10" coaxial speaker with 1.75" spherical wave dipole horn
  • Dimensions (H/W/D): 102 x 45.7 x 7.6 cm
  • Weight: 38 kg
By using the 15 inch double voice coil bass with copper Faraday socket in the magnet around the voice coil, any absorption circuit becomes superfluous. The result is a significant increase in efficiency and a superb midrange. In combination with our newly optimized serial 3-way crossover, the Nº 4 is a new milestone in Spatial Europe development in terms of dynamics, stage imaging and timbre.
Manufacturer Site

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:

Spatial MC series:  

  • Positioning: A balanced high-end speaker series designed to bring lively sound performance to everyday audiophile setups.  
  • Description: Offers innovative acoustic panel designs and flexible tuning options that differentiate it from simpler cabinet designs seen in other lines. Compared to the PURE series and the Arthouse Edition, it is suited for small to medium rooms and standard connectivity needs while addressing a moderate budget range.

Spatial PURE series:  

  • Positioning: A minimalist speaker series focused on pure music reproduction and a straightforward design approach.  
  • Description: Uses a reduction in design components to deliver a clean and unaltered sonic output, making it distinct from the more engineered MC series.

Spatial Arthouse Edition:  

  • Positioning: A premium, art-focused speaker series merging visual craftsmanship with top-tier audio performance.  
  • Description: Features bespoke materials and refined acoustic tuning that stand out as unique technological features within the lineup. Compared to the MC and PURE series, it is designed for larger, dedicated listening environments.
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Avg. Product Price
$10,001-$20,000
Used For Sale
4
 Available (Scroll Down)
Brand Popularity
468
 of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
8
Founding Year

Our take on the brand

Spatial Europe crafts open baffle speakers in Bavaria that eliminate box resonance issues found in conventional designs, delivering a more natural and open sound with exceptional imaging often described as holographic. Their high-efficiency speakers are particularly appealing to tube amplifier enthusiasts, and they're handcrafted using locally sourced materials with plastic-free packaging.

Look inside the brand

Brand Page

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?

From our interview with
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Brand Page

What if you spend more?

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What competes at this price?

PureAudioProject
Seven Eyes Duet15
11800
/
Released
Duet15 is an Open Baffle Speakers for small to medium size rooms. It features our proprietary 15" woofer, a full range driver by Voxativ, and a dedicated audiophile-grade crossover.
Check Amazon
PureAudioProject offers modular speakers that customers can customize by choosing and swapping different drivers and components, with their open-baffle design allowing sound to radiate from both front and back of the speaker for natural sound reproduction. The brand caters to tube amplification enthusiasts through their highly efficient speakers, while offering direct consultation with the designer Ze'ev Schlik to help customers choose the best configuration for their needs.
Expand Details

Our Summary

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.

Video review

Our take on the brand

PureAudioProject offers modular speakers that customers can customize by choosing and swapping different drivers and components, with their open-baffle design allowing sound to radiate from both front and back of the speaker for natural sound reproduction. The brand caters to tube amplification enthusiasts through their highly efficient speakers, while offering direct consultation with the designer Ze'ev Schlik to help customers choose the best configuration for their needs.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Diptyque
DP 115
11999
/
Released
2024
The diptyque dp115 offer a perfect balance between aesthetic elegance and top-quality sound reproduction. They feature a 0.198m² bass-midrange driver based on our exclusive optimized PPBM principle, and a ribbon tweeter with neodymium magnets 45cm long. The mechanical sandwitch structure inherited from our Reference model.
Check Amazon
Diptyque stands out in the hifi industry for its advanced isodynamic planar magnetic technology, delivering precise, natural sound with minimal distortion. With decades of expertise in acoustics, the brand has earned a strong reputation for crafting hand-built, high-performance speakers in France.
Expand Details

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

Diptyque stands out in the hifi industry for its advanced isodynamic planar magnetic technology, delivering precise, natural sound with minimal distortion. With decades of expertise in acoustics, the brand has earned a strong reputation for crafting hand-built, high-performance speakers in France.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

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