SPECIFICATIONS

M1 speaker + Stand
H x W x D: 110,3 x 26 x 44 cm
H x W x D: 43,3 x 10,2 x 17,3 Inches
Weight: 23,6 kg / 39.68 lbs

M1 speaker
H x W x D: 36,8 x 20 x 44 cm
H x W x D: 14,5 x 7,9 x 17,3 Inches
Weight: 14,1 kg

Stand
H x W x D: 73,5 x 26 x 41,5 cm
H x W x D: 28,9 x 10,2 x 16,3 Inches
Weight: 9,5 kg

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BØRRESEN Cryo Edition:

The Cryogenic treatment of the speakers’ metal components results in a significant improvement of conductivity – unleashing finest and most subtle musical details.

The metal components of the loudspeakers are subjected to a Cryogenic processing. The Cryogenic processing cycle requires a 3-day-time window. Within the first 24 hours, the metal is subjected to a cooling process from room temperature to Cryogenic temperatures. For the second 24 hours, the metal components are then held at temperatures around -196°C (-321°F) before the temperature, within the next 24 hours, returns gradually to room temperature. The gradual cooling down and heating up period is critical to avoid any thermal stress.

The process will strengthen and enhance the grain structure of the metal components and reduce inherent residual stress that is created when metal solidifies from its liquid phase into a solid phase.

The result is literally opening up a new dimension of musical performance. A sound that is crystal clear, truly natural and utmost refined.

 

BØRRESEN Silver Supreme:

The BØRRESEN Silver Supreme loudspeakers represent the absolute flagship version among the BØRRESEN loudspeakers

The patented BØRRESEN magnet motor has been further refined. Since silver has turned out to have the highest specific electrical conductivity of all metals we replaced the copper pole rings by in-house manufactured, hand-crafted silver rings. As a result, induction could be reduced to a stunning, so far unprecedentedly low level.

Additionally, all metal components of this premium loudspeaker series are subjected to a Cryogenic treatment to exploit the full potential of all their performance enhancing audio properties for the new BØRRESEN 0-series Silver Supreme.

M series membrane – Bass/midrange

Maximum stiffness with minimum noise.
The membrane is designed to achieve maximum stiffness with minimum noise. The membrane for the M1 is the most advanced and sophisticated speaker membrane on the market. The M1 membrane has the highest stiffness and the lowest membrane resonance. The technological requirements for this unrivalled, world-class membrane performance made it necessary to design, develop and assemble all components in-house. Michael Børresen and his team had to construct a large number of different variants and models until they accomplished their uncompromising goal of ultimate membrane performance for an unprecedented sound quality.

The result is a membrane that consists of four skins laminated into a single unit: two layers of spread tow carbon fiber, a layer of aramid honeycomb spacers in between, and a titanium skin with Ansuz Supreme coating.

The combination of all these materials gives this state-of-the- art membrane its unique properties. Spread tow carbon fiber is designed to ensure a skin with optimum stiffness in many different directions. This unique characteristic reduces sound disturbing vibrations and resonances to an unprecedentedly low level. This is also true for resonances in the frequency range above 8 kHz. Since the membrane/driver is used up to the 2.5 kHz range, disturbing resonances have been shifted two octaves outside the effective frequency range, ensuring an absolute minimum of resonances.

The aramid honeycomb also has the best stiffness to weight ratio in the vertical direction.

Titanium has perfect resonance control properties and supports a natural, organic sound of the membrane. With the Ansuz Supreme coating, the skin of the membrane is further acoustically optimized. This coating is applied to the titanium skin in a Hi-PIMS (High Power Impulse Magnetron Sputtering) machine to create the finest and most uniform layer of zirconium, followed by a layer of tungsten and finished with a layer of aluminum chrome nitride. This coating provides the music with a truly impeccable sound quality.

The basket – A real revolution

Zirconium, topology-optimized and 3D printed
The basket is a real revolution – it is a topology-optimized 3D-printed basket made of zirconium, which ensures maximum rigidity and thus minimum vibration and resonance.

The basket is not just a placeholder for the membrane. The energy generated by the membrane is also held by the structure behind it. The goal was therefore to eliminate the noise of the basket by designing a basket with maximum stiffness. Studies were conducted using computer-optimized finite element designs, resulting in a topology-optimized 3D-printed basket made of the exclusive material zirconium.

Børresen has not only designed a basket with extreme stiffness, but also added important factors such as tremendous internal damping and resonance control, resulting in extreme clarity in overall performance. Thanks to the 3D printing process, the cavities are filled with zirconium powder, which gives the basket additional damping properties. Zirconium is by far the best choice of material, since it allows the basket to generate an inconceivable quality of natural sound.

Magnet system – Bass/midrange

The Silver Supreme Edition in the M Series.
The patented Børresen iron-free magnetic system has been further refined. Børresen uses iron-free drivers in all its loudspeakers. Their inductance is about ten times lower than that of conventional drivers. This exceptionally low inductance has now been even further reduced to an unprecedented new minimum level – about 12 times lower than the inductance level of conventional, iron-based drivers. Here is how we achieved this: Since silver has 6-8% better conductivity than copper, we replaced the copper pole rings with in-house manufactured, handcrafted silver rings.

To take full advantage of all the performance-enhancing audio properties of the Børresen M series, all other metal components of these premium speakers also undergo cryogenic treatment. This reduces their inductance by another 6-8%.
The result is absolute musical purity. With their unadulterated authenticity of musical reproduction, these premium loudspeakers set a new and unsurpassed standard – clarity, refinement, and sound-staging at its very best.

Crossover M series

Serial configuration, coherent system.
Børresen loudspeakers are fitted with a serial crossover configuration. The reason for this is that the drivers share the very same flow of electric current in the crossover region. As a result, the electric current is phase-locked over the crossover region. Unlike standard parallel filtering, where each driver receives its own frequency and phase content, the new serial filters work by diverting out-of-band currents around the current flows, thus creating a much more coherent system. This unrivaled and innovative technological approach takes your music into a new echelon of acoustic delight.

For the crossover filter, we went to great lengths to source the very best and most sophisticated state-of-the-art components. The coils are foil types wound with paper isolation and impregnated with resin under vacuum to make them mechanically extremely solid and stable.

For crossover capacitors, we use arrays of small military spec stack-foil types. They have the best mechanical stability and lowest induction of any type of capacitor on the market (and they sound wonderful, too).

For tweeter attenuation resistors, we use metal strip types since they have, by far, the lowest noise figures and additionally, a very low thermal variation.

Cabinet M1 – Redesigned and reinforced

The design is an evolution and optimization of the stunning Børresen 01 cabinet. To ensure even higher performance, the M1 cabinet is constructed with additional 5mm braced, block-milled, pressed wood structures. In addition, braces are built into the sides of the speaker to give the cabinet even more rigidity and mechanical stability. The tweeter and woofer sections are fitted with matched terminals to ensure highest efficiency. The cabinet is covered with black piano lacquer.

The M1 stand – Aesthetics with sonic potential

The stand for the M1 speaker was designed with auditory functionality in mind to ensure the impressive performance of this world-class speaker.

The speaker is placed on the meticulously machined top plate, which is constructed as a sandwich solution. The base material is a heavy, compact laminate panel with titanium layers on the top and bottom. This unique sandwich construction supports a natural and organic sound.

Three Ansuz Darkz Z2S resonance control decouplers are almost invisibly placed between the speaker and the top plate. The Darkz Z2S is made of zirconium and represents the flagship version among the resonance control decouplers.

The lower plate is mounted on an aesthetically designed vertical column and feet, which are designed as a cross shape. The material of the column and feet is NBCM (Natural Based Composite Material). This composite material is also used by Børresen’ s sister companies Ansuz and Aavik, as it reduces distorting mechanical influence, especially hysteresis. The sonic result is clearly audible. In addition, the adjustable feet of the bottom cross plate are designed to sit on top of Ansuz Darkz.