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DUET Loudspeaker System
The DUET makes use of the exclusive loading system developed for the Offrande Signature, giving it the ability to reproduce a sound environment considerably larger than the modest size and architecture of its enclosure would lead one to expect.
Spontaneous and lively with rich and marvelous tone, it provides a very smooth subjective spectrum of sound and is capable of exploring the very low end without hump or drag effect.
The DUET doesn't pretend to be "as big as a beef" but should suit those who know what real live music is all about.
LOUDSPEAKER CABINET . . . . . . . . . . . . . . . . . . . . . . . . .
The traditional loading system commonly used (such as reflex system or sealed box) generates high pressure levels inside the cabinet close to their tuning frequency, the consequences of which can be easily heard across a very wide portion of the audio spectrum: sound box effect, lack of speed, and tonal distortion.
The four-coupled cavities loading principal used in the Offrande Signatures and Duets allows a regulation of air flow inside the cabinet, resulting in lower air elasticity. Its expansion profile has been perfectly tuned, thanks to the use of analog signals to identify the appearance of a flat wave. This double compression chamber, dampened with a viscoelastic compound, gives a very high velocity to the enclosed air, which then reaches the two other uneven internal chambers through a tuned event port. These two cavities dampen the air flow at the exit of the compression chamber. One of them is tuned by a slim event port at the frequency resonance of both cabinet and woofer.
The deep bass which results is tonally pure and distortion free; the establishment of the wave trains is very fast.
CROSSOVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 and 12dB/Octave slope, RC circuitry on the drivers in order to flatten their impedance curve. Air coils and polypropylene capacitors with tin armature on the tweeter cell. Cut off frequency 3200Hz.
Printed board free pin to pin wiring to avoid loss of any information.
DRIVERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WOOFER
7" composite cone made of paper/carbon compound with aquaplast core, phase plug, 1.5" moving coil onto high temperature support, flat spider, anti resonant ABS basket.
TWEETER
1.1" pure silk soft dome, double neodium magnet system, tuned rear chamber, anti resonant front horn.
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