Acoustic Loading and Cabinet Construction
AURALIS uses a proprietary JMR acoustic loading system based on a tuned triangular transmission line. This principle, historically dear to Jean-Marie Reynaud, progressively harnesses the rear energy of the drivers in order to achieve bass that is spacious, articulate and naturally integrated.
The goal is not to produce artificially spectacular bass, but bass that can follow the music: fast, nuanced and articulate, without heaviness or any masking effect on the midrange. This approach directly contributes to the sense of breath, scale and coherence that characterizes the AURALIS listening experience.
The cabinet construction plays an essential role in achieving this result. Made from HDF panels ranging from 25 to 40 mm thickness depending on the areas under stress, it provides a particularly rigid and stable structure. Its internal treatment favors the use of a minimal amount of acoustic damping material in order to preserve the music’s dynamics, liveliness and freedom of expression.
Viscoelastic compounds are applied at strategic locations to control unwanted vibrations without altering the energy of the musical message. This approach achieves a subtle balance between damping and freedom of operation.
The pod housing the upper section of the tweeter is made from epoxy resin. This material was selected for its mechanical qualities, providing the transducer with a particularly inert and stable reference. Beyond its acoustic role, this element defines the new silhouette of AURALIS and gives it a refined, distinctive and immediately recognizable design.
AURALIS also features a specific base built around a decoupling principle with no direct mechanical coupling. A polymer element, whose shape and thickness were determined experimentally and then refined through listening tests, provides the loudspeaker’s mechanical isolation. This solution eliminates the need for traditional decoupling spikes in favor of Teflon pads, which are easier to use and perfectly suited to the acoustic philosophy of the project.
The front sub-baffle, made from HDF and fitted with a solid machined aluminium trim, contributes both to the overall rigidity of the assembly and to the distinctive quality of finish that characterizes AURALIS.
The AURALIS crossover has undergone a particularly demanding development process, with one constant priority: preserving the integrity of the musical signal by minimizing losses, phase rotations and distortion phenomena as much as possible. Each component has been selected for its ability to reproduce music naturally, without coloration or dynamic compression.
The 2.5-way architecture combines carefully optimized 6 dB and 12 dB per octave slopes to ensure perfect coherence between the transducers. The two mid-bass drivers operate together up to 220 Hz, doubling the radiating surface in this part of the spectrum and bringing greater energy, impact and ease to the bass register. The handover to the AST tweeter is set at a deliberately low frequency of 1,800 Hz, using a symmetrical 12 dB/octave filter in order to take full advantage of the exceptional qualities of this transducer: speed, low distortion, dynamic capability and remarkable naturalness in the reproduction of the mid-to-high frequency range.
Faithful to the JMR philosophy, the crossover uses a deliberately limited number of components in order to preserve the transparency and fluidity of the musical message. It is entirely hand-wired in our workshops, without any printed circuit board.
The main inductors are made from pure copper foil wound on beechwood formers. This technology offers extremely low resistivity, excellent power handling and remarkable dynamic stability, even under the most demanding conditions.
ClarityCap PUR series capacitors were selected for their exceptional balance of speed, definition and naturalness. They contribute to a detailed and lively presentation, without hardness or artificial projection.
For tweeter attenuation, AURALIS uses very high-quality Path Audio resistors. Their specific design incorporates a third terminal connected to ground, as well as a copper tube that acts simultaneously as electromagnetic shielding, a heat sink and a drainage system for parasitic charges. This solution contributes to achieving a particularly pure, stable and natural high-frequency register.
Together, these technical choices contribute to a highly coherent presentation, in which dynamics, harmonic richness and tonal accuracy are expressed with remarkable musical self-evidence.
AURALIS combines two new mid-bass transducers with a 120 mm AST tweeter, in a 2.5-way architecture designed to deliver scale, precision and naturalness.
AURALIS was designed to deliver a large-scale musical experience without unnecessary complexity. Despite its high-end positioning, it remains faithful to the JMR spirit: a demanding yet lively, balanced and enjoyable loudspeaker for everyday listening.
Recommended spacing: from 2 to 4 metres (approximately 6.5 to 13 feet, or 79 to 157 inches) centre-to-centre, depending on the proportions of the listening room and the desired soundstage.
Minimum recommended listening distance: 3 metres (approximately 10 feet), in order to allow the registers to blend seamlessly and ensure full coherence of reproduction.
Minimum distance from the rear wall: 80 cm (approximately 31.5 inches). Although the front-firing port makes the loudspeaker relatively tolerant of proximity to the wall, the bass energy it develops requires a certain amount of distance in order to fully benefit from the three-dimensional soundstage and preserve the clarity and coherence of the lowest octaves.
Compatible with both tube and solid-state amplifiers, AURALIS presents no particular difficulty in setup thanks to the very small variations in its impedance curve. It can therefore adapt to different amplification philosophies and a wide range of tonal preferences.
The many experiments carried out during development, as well as demonstrations held at our dealers’ showrooms, have confirmed that AURALIS is particularly revealing of the quality of the upstream components. Its transparency and analytical capability bring out the specific character of each electronic component, while maintaining remarkable ease of pairing.
When properly installed and paired with high-quality electronics, AURALIS delivers a listening experience that is precise, natural and deeply lifelike, preserving musical enjoyment over very long listening sessions.
AURALIS has been designed for domestic high-fidelity use. It is not intended for public or private sound reinforcement applications. Any use in such a context cannot be covered by the warranty.
