JM Reynaud CantabileJubilee

JM Reynaud

JM Reynaud CantabileJubilee

  • $5,000.00
    Unit price per 


2 ½ WAY LOUDSPEAKER SYSTEM

ENCLOSURE:

Loading principle: Triangular transmission line, anti-noise front event port.
Medite material machined to 0.75” thickness, all edges Rounded in order to limit diffraction effects.
Assembly under press guarantees a completely inert structure. Lower chamber may be partially filled with dry sand to improve the damping of the triangular line end and to lower gravity center of the enclosure (0,6kg, 1lbs maximum for each cabinet to be experimented gradually)
The axial fixation of the woofers allows the tensioning of the cabinet’s panels and provides evenly distributed mechanical stresses between the woofer’s basket and its support which dramatically improves the transient response of the system.
The use of internal viscoelastic damping compound transforms vibratory energy into heat without loss of micro-information.

WOOFERS :

2 x 5.2”. Anti-resonant zamac basket. Flat ventilated spider. Hypergraph carbon/Kevlar cone with perfect internal damping. Anti-vortex phase plug for the medium driver and soft textile central dust cap for the woofer. Peripheral surround with high compliance and high damping giving strong and firm bass response. 1” moving coil wounded inside and outside a kapton support. Double magnet. Getting tension through a stainless steel threaded rod bolted to the center of the magnetic core and substance of the cabinetry.

TWEETER:

Brand new 1’’ impregnated silk dome tweeter allowing a very flat frequency response and accurate dynamic range (small level difference reproduced with precision and high dynamics very well respected and reproduced without harshness or projection effect). Non ferrofluid air gaps thanks to a double tuned rear chamber insuring perfect damping of the dome during transient attacks. Very low frequency resonance (700 Hz). Front horn machined with plain aluminum optimizing directivity and giving the very light moving parts a perfect mechanical reference. Very low distortion, typically below 0,05% in between 3 kHz and 25 kHz.
Solid beech wood enclosure whose geometry optimizes the polar diagram. This enclosure is fixed to the lower cabinet with an oblong shaped brace bolted in three point in order to avoid any micro displacement.
This new tweeter position has been optimized in height and depth to obtain a perfect and precise dynamic phasing at the crossover point with the upper medium/woofer unit. The optimized dynamic phasing of the units ensures accurate time group propagation, thethe fundamental and harmonic of the musical signal reconstituting themselves in perfect concordance. Exactness of the timbres are perfectly respected and extremely fluid.

CROSSOVER NETWORK:

6, 6 and 12 dB/octave 1st and second order. Cut off frequencies 600 and 3000 Hz. The two woofers are working together under 600 Hz.
Ferrite air coil with very low resistance using an oxygen-free high section (1,5mm) pure copper winding cable for a fast and non-compressed low end frequency response. Non inductive ceramic resistors. Circuits R / C in order to give a benign impedance throughout the useful band.
All components are sorted by pairs with a very low tolerance of 1%, and are oriented experimentally to avoid any electromagnetic interference.
Hand crafted, printed board free, pin to pin wiring using our HP1132 silver cable to avoid loss of any information. This crossover network is assembled on an anti-vibration plate positioned as far as possible from any magnetic and vibratory interference.
Silver capacitors using our HP1132 silver/copper cable for terminations and indicating the direction of the silver foil winding.
All interconnections use our silver/copper cable HP1132, soldered directly to the loudspeaker biding posts. This high end cable is providing a true linear response over the entire frequency range of the speaker. It allows rich tones with high resolution and transparency without harshness.


RECOMMENDATIONS FOR USE:

Thanks to its low and extremely regular directivity, it is not necessary to arrange the two speakers so that they converge towards to ideal listening point, in order to draw maximum benefit from the phase of the system.
The distance between the two will be determined experimentally. In theory, the ideal distance is 2,5 meters from one center line to the other, but this may be reduced. In order to get a consistent and deep stereo imaging, it is recommended to place the cabinet at 2,6 Ft from back and side walls.
Best technical and musical results are obtained by using our cable HP 1132 for the connection to the amplifier same cable used for inner interconnections of the entire system..



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