To develop an effective resonant device that treats the acoustic problems for a specific environment, it was necessary to produce a design that is really effective in dealing with the critical low frequency of that environment without affecting any of the others.
The resonator works in a narrow band and NOT on a broad-band, such as the DAADs work.
A resonator is fixed and dedicated only to a specific environment. It has to be very well calculated and matched between the environment and speakers. This is important if you don’t want to cause an acoustic disaster.
Despite the potential of the device, up to now, it has been very difficult to utilise in the home.
Polifemo is the modern answer to the principle of Helmholtz.
Polifemo can be adapted to each specific acoustic problem within the listening environment.
By some exclusive and effective technical solutions, it changes its resonance frequency to match that required in a certain environment. Its possibilities are almost limitless.
Starting from 26Hz up to about 60Hz, Polifemo gives you the opportunity to work on any frequencies in a clean and well-defined way. Changing the environment or replacing the speakers, Polifemo can be adjusted for any system or room design.
Polifemo is a cylindrical shape. At the base, which is appropriately elevated from the ground, there is a port that can be gradually opened or closed by a rotating plexiglass disk, this sets the correct frequency resonance in the specific environment.
Polifemo exalts the performances of an Helmoltz resonator by exhibiting two further exclusive regulations. The first is the “Eye” of Polifemo, a sophisticated iris diaphragm, whose aperture can be gradually and finely changed; the second is the internal paddle membrane that changes the speed of the internal air flow.
Since it can be considered as a “passive speaker”, the orientation of the “Eye”, which is obtained by rotating the entire device, influences the distribution of the sound into the listening room.
All the Polifemo adjustments can be performed by electronic measuring devices and/or by simply listening with your ears, the results are striking.
In addition to the precise control and articulation of the lower frequencies, the result is the Polifemo gives a clear enlargement to the soundstage, this is due to better resolution and an improvement of how the medium and high frequencies “float” over the bottom end of the frequency range.
When the system is properly tuned, Polifemo will transform any system. Greater dynamics with increased realism and a huge gain in micro-information are just some of the benefits.
In a listening room of standard size, one or two devices are necessary. These can be tuned in different ways to asymmetrically correct the soundstage and to solve various problems.
In some cases, to obtain the best results, 3 or 4 can be used. Generally, the suggested positions are along the walls or, in specific cases, in the corners.
Polifemo can be used with other acoustic treatment systems such as the DaaD’s.
Downloads Polifemo Set Up Guide
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