Apertura Onira
 

Big sister of Harmony, whose spirit shares, raising the concept much further thanks to an original architecture. Amplitude, dynamics, realism allow the Onira to enter the closed circle of the largest systems.

Onira retakes the box profile initiated with Harmony.

The project is more ambitious, the means put into more important works.

The multi-layer structure of high density board reaches 25 mm on all four sides and 47 mm for the bottom and top. Thus we favor the treatment of the most emissive surfaces.

This structure of laminar panels takes shape around a skeleton constituted by six pieces of great thickness.

For an optimization of the evacuation of associated noises, the Onira enclosure rests on a central cone positioned on the axis of the center of gravity. The four side tips have the sole function of stabilizing the enclosure.

The Onira is equipped with two 17 cm. Of medium-grave, identical to those used in Harmony. Turn to a powerful magnetic circuit of 11 cm. diameter,
Fully decompressed.

The Isotactic Matrix cone combines stiffness and damping, allowing the reproduction of a wide frequency band with no burst mode and a low distortion rate.

A copper ring, placed in the air gap, allows to reduce the distortion rates. A very thorough study of the internal load architecture allows a truly correlative operation of the two mid-bass speakers, which is exceptional.

The tweeter is like Harmony, the result of a new generation of ribbon tweeter using an aluminum / polypropylene sandwich.

This tweeter benefits from a double emissive surface of Harmony, therefore much higher than all dome tweeters on the market, for a mass ten times smaller. This feature allows you to choose a lower transition frequency and be able to benefit from the fineness, accuracy and attack of the tape tweeter over a wider range of frequencies.

There is no great system without a filter worthy of that name, and the one of the Onira also contributes to the exceptional sound quality of this speaker.

The filter, developed by Cristian Yvon, resumes its "DRIM" architecture that allows it to sculpt the profiles of the amplitude-frequency curves of the loudspeakers to optimize the transition slope and minimize intermodulation.

Transition slopes of 6dB, 12dB and 24dB per octave allow the widest linearity combined with respect to temporal alignments.

Listening, the elements common to all acoustic enclosures meet again. Opening: Accuracy of timbres, precision of the registers, but with an incredible dynamic capacity that expresses itself so well in the listening of great orchestral masses as in the More subtle passages.

The effect of the presence of the interpreters is surprising. The Onira disappears in front of the music and make you rediscover your favorite works.

Technology

New generation tape tweeter.
Sandwich membrane 5 "and only 36mg.
Neodymium magnetic circuitFerBoro

Average height of 18cm. Isotactic matrix matrix (woven polypropylene composite).
Linear over a broad band of frequencies and perfectly damped.
It is equipped with a powerful motor based on an 11cm ferrite. Diameter, and a copper ring over the air gap which reduces distortion.

High-density multilayer board joinery, with a total thickness of 25mm, is molded under pressure around a six-ply skeleton of strong thickness. Only this type of structure allows an absolute neutrality of the cabinetmaking.

Filter structure DRIM
High-end audio components: Jantzen inductors of vitrified wire section 1.4mm2,
Mundorf and Jantzen polypropylene film capacitor.
Manual Wiring on printed circuit FR4-copper 130m. Internal wiring of PTFE copper / silver wire

The Onira rests on a central cone placed in the axis of the center of gravity, which allows to optimize the evacuation of the associated noises.
The four lateral tips serve only to stabilize the enclosure.
Thanks to its important section, the hole positioned under the loudspeaker limits the evacuation noise and allows a better connection with the room.

Technical characteristics

• Speaker 2-way speaker and 3 speakers
• Frequency response 35-30 000Hz / + -3dB
• Sensitivity 91dB / 1w / 1m
• Impedance 4 ohms
• Charging Bass-Reflex
• Speakers 2 x Medium / low 17cm Isotactic Matrix
• Ribbon Tweeter 5 "
• Cut-off frequency of the 3kHz filter
• Connections Monocable
• Accepts spades and bananas
• Dimensions 254 x 340 x
• 1250 mm
• 369 x 385 x 1250 mm (with feet)
• Net weight 42Kg (51Kg packed)