Triangle Borea BR04 blue (pack of 2)

The Triangle BR04 embodies the new generation of bookshelf speakers in the Borea range from the French manufacturer. It represents an evolution of the BR03, with notable improvements in acoustic performance while retaining a compact form factor. Equipped with a redesigned front bass-reflex port, a double binding post suitable for audiophile configurations, and a proprietary vibration reduction system, the BR04 fits into a well‑controlled technical continuity. Designed for rooms from 10 to 40 m², it combines sonic precision, present bass, and good vocal intelligibility.

Refined design and elegant finishes

The BR04 continues the aesthetic line of the Borea range with a design that is both modern and timeless. Its cabinet, with carefully calculated dimensions (220 x 425 x 314 mm), houses advanced acoustic technology while preserving a discreet elegance that blends harmoniously into any interior.

Triangle offers a remarkable choice of six distinct finishes for these speakers: black, white, chestnut, light oak, light oak blue, and green oak. This variety allows the BR04 to adapt to all decorative styles, from the most classic to the most contemporary. The wood finishes add a warm and authentic touch, while the black and white versions fit perfectly into minimalist interiors.

The fabric protective grilles, attached by a clever magnetic system, can be easily removed to admire the drivers or put back in place to protect them. This screw‑less system preserves the purity of the lines while ensuring effective protection of the transducers.

At the base of the speaker, new rubber feet serve a dual purpose: they effectively absorb the vibrations generated by the speaker and ensure perfect stability on any type of stand. This attention to detail reflects the care Triangle has devoted to every aspect of the design.

Technical innovations in the service of musicality

The BR04 incorporates several technical advances that make it stand out in its category. At the heart of these innovations is the new front bass-reflex port, the result of extensive research into optimizing airflow. This design significantly improves air circulation inside the speaker, providing deeper, better controlled bass while reducing acoustic turbulence.

The placement of the port at the front is also a major practical advantage: unlike traditional rear ports, this configuration allows the speakers to be placed near a wall without compromising sound quality. This placement flexibility is particularly valuable in confined spaces or when the room layout imposes constraints.

The DVAS (Driver Vibration Absorption System), exclusive to Triangle, is another notable innovation. This system cleverly integrates the drivers into the structure of the speaker to reduce unwanted vibrations. By improving overall rigidity and attenuating undesirable frequencies, DVAS contributes to a clearer, more detailed, and more dynamic sound reproduction.

The internal architecture of the BR04 has been completely redesigned compared to the BR03. The increased cabinet volume extends the low‑frequency response, while the reinforced structure limits unwanted resonances. These structural optimizations, although invisible, play a decisive role in the overall sound quality.

High‑precision transducers

The BR04 is equipped with a 25 mm silk‑dome tweeter featuring Triangle’s EFS (Efficient Flow System) technology. This system combines the dome with a specially designed waveguide to ensure even dispersion of high frequencies throughout the listening room. This design guarantees a precise and stable stereo image, with detailed treble reproduction free of harshness.

For the midrange and bass, Triangle has chosen a 16 cm driver with a natural cellulose pulp cone. This material, selected for its exceptional acoustic properties, gives voices remarkable warmth and naturalness. The cone profile has been specifically reworked for the BR04 to reduce distortion during large excursions, allowing clear and defined listening even at high volume.

The combination of these two high‑quality transducers, optimized by carefully calculated crossover design, enables the BR04 to deliver exceptional tonal coherence across the entire audible spectrum. The transition between frequency ranges is smooth and natural, with no artificial coloration.

Sound performance

With an extended frequency response from 44 Hz to 22 kHz, the BR04 delivers a remarkably balanced sound reproduction. Low frequencies are rendered with depth and precision, without the boominess sometimes found in compact speakers. This bass extension allows you to fully appreciate low‑frequency instruments such as double basses or bass drums with striking realism.

The high sensitivity of 90 dB/W is a major asset for these speakers. This characteristic allows them to deliver a high sound level even with modest‑power amplifiers, while preserving dynamics and fine detail. The BR04 therefore works well with a wide range of electronics, from low‑power tube amplifiers to more powerful solid‑state models.

One of the BR04’s most remarkable qualities lies in its outstanding reproduction of vocal timbres. Thanks to its mid‑bass driver in cellulose pulp, it reproduces voices with striking warmth and naturalness. This makes it a particularly suitable speaker for lovers of vocal music, from jazz to opera to chanson.

The soundstage created by the BR04 impresses with its width and depth. Instruments are positioned precisely in space, creating a three‑dimensional stereo image that transcends the physical size of the speakers. This ability to acoustically “disappear” in favor of the music attests to the quality of the speaker’s design.

Remarkable versatility

The BR04 stands out for its exceptional versatility. In a traditional stereo configuration, it excels in the reproduction of all musical genres, from classical works to contemporary electronic productions. Its ability to faithfully reproduce dynamic nuances and instrumental timbres makes it an ideal partner for demanding music lovers.

In a home‑theater system, the BR04 also shows remarkable qualities. Used as front channels, it ensures precise reproduction of dialogue and sound effects, with perfect coherence between picture and sound. As rear or surround channels, it helps create an enveloping and realistic sound atmosphere.

Compatibility with all ten models in the Borea range allows the creation of a homogeneous and coherent multichannel system. Whether combined with the center speakers BRC1 and BRC2, the effect speakers BRS1, or the floorstanding models in the series, the BR04 integrates perfectly into a complete surround configuration.

Thanks to its front bass‑reflex port, the BR04 adapts to a variety of installation configurations. It can be placed on a shelf, a piece of furniture, or dedicated stands, even close to a wall, without compromising its acoustic performance. This placement flexibility is a significant advantage over rear‑ported models, which are more demanding in terms of clearance.

Audiophile configuration

The BR04 features double binding posts, a configuration usually reserved for high‑end models. This allows the speakers to be used in bi‑wiring (using two pairs of cables from the same amplifier) or in bi‑amping (using two separate amplifiers for bass and treble).

The crossover architecture has been completely redesigned to take full advantage of this advanced connectivity. The processing of mid‑bass frequencies is now separated from that of high frequencies, enabling more precise and faithful reproduction of the audio signal. This approach ensures better transient definition and clearer separation of instruments.

For audiophiles in search of sonic perfection, the possibility of bi‑amping the BR04 opens up exciting prospects. By dedicating one amplifier to the bass and another to the treble, it becomes possible to optimize the reproduction of each frequency range and achieve an even higher listening quality. This upgradability is a major asset for these speakers, which can accompany the listener as their system evolves.

The binding posts themselves are of high quality, with gold‑plated contacts ensuring optimal connection to the speaker cables. They accept all common types of terminations (banana plugs, spades, or bare wire), offering great flexibility in wiring.

Technical Specifications

Technical Specifications

• Type: bookshelf speakers
• Number of ways: 2
• Admissible impedance: 4.4 Ω / 8 Ω
• Admissible power: 110 W RMS
• Recommended room size: 10 to 40 m²
• Frequency response (+/-3dB): 44 Hz - 22 kHz
• Sensitivity: 90 dB/W

Drivers

• Tweeter: 25 mm silk dome
  • Mid-bass: 16 cm cellulose pulp
• EFS tweeter technology (Efficient Flow System):
  • Silk dome with waveguide
  • Even and precise high-frequency dispersion
• Mid-bass driver:
  • Natural cellulose pulp diaphragm
  • Warm and realistic timbre
  • New cone profile to limit distortion at high volume

Design and Technology

• Front bass-reflex port:
  • New tubular design at the front
  • Optimized airflow for deeper, more controlled bass
  • Reduced turbulence for better sound accuracy
  • Allows placement near a wall without loss of acoustic quality
• Optimized cabinet:
  • Increased enclosure volume to enhance bass extension
  • New structure for greater rigidity
• DVAS system (Driver Vibration Absorption System):
  • Active reduction of unwanted vibrations
  • Clever integration of drivers for greater clarity, detail, and dynamics

Connectivity and Configuration

• Double binding posts:
  • Compatible with bi-wiring and bi-amplification
  • Redesigned crossover architecture for precise register separation
  • More faithful reproduction for audiophile setups

Design and Finishes

• Available finishes (6): black, chestnut, light oak, green oak, light blue oak, white
• Fabric grilles with magnetic attachment
• Rubber feet:
  • Vibration damping
  • Stabilizes the speaker on any surface
• Sleek and elegant design

General Overview and Use

• New improved version of the BR03
• New reference bookshelf speaker in the BOREA range
• Compact and accessible format
• Integrates numerous technical optimizations while preserving BOREA’s DNA
• Acoustic performance:
  • Rich sound reproduction, with deeper and more controlled bass
  • High vocal clarity and natural warmth
  • More dynamic and precise

Versatility of Use

• Ideal for stereo hi-fi use
• Excellent vocal timbre reproduction
• Perfect for home theater (front or rear channels)
• Compatible with all 10 BOREA models to create a complete system

General Information

• Dimensions (W x H x D): 220 x 425 x 314 mm
• Packaging dimensions (W x H x D): 525 x 480 x 375 mm
• Net unit weight: 8.6 kg
• Gross weight: 19 kg