Small and medium sized rooms like recording studios or dedicated rooms for listening or live played music, needs a most efficient surface to diffuse interfering rear wall reflections (and generally all kind of reflections) to provide an homogeneous diffuse sound field. These kind of rooms are the most difficult to treat acoustically. The smaller is a room the most difficult to have really good results: aesthetically & acoustically. To solve this problem a Greek SME, owned by an extremely experienced inventor, decided to produce a new kind of acoustical material, mainly based in psychoacoustic knowledge. The result is the most powerful and aesthetic diffusing surface in the acoustic industry: ROUNDFFUSOR 1.

Roundfusor1 is composed from a main body and two lateral drivers. These two drivers support steadily the diffuser upon the surface to be mounted: walls or ceiling. The diffuser may be used in any kind of room where the critical listening is needed. Its main advantage is that it is working simultaneously in two ways: as a clean diffuser for mid and high frequencies and as a self controlled absorber, below 250 Hz, for low and very low frequencies. This is possible, because being mounted in a new way works like a complex Helmholtz resonator. In real time, there is a kind of reconstruction of all music characteristics/parts diffused or absorbed or both. Even for the trained ears, there is no time to realize when and how the music is processed and the listener is just immersed in the sound without any trace of coloration. Additionally the sweet spot becomes obsolete and the consequence is that almost every person in the room senses the same sound mix.

The ROUNDFFUSOR 1 is relative simple as an object and can be easily mounted by anybody with simple tools. Another basic characteristic is that is very cheap. Generally, all that is necessary as a room treatment are 9 Roundffusor1 units (less or more, depends upon the application and the volume of the room). All 9 Roundffusor1 units occupy only a total area of 174x174 cm (Dimensions for each: 58 x 58 x 11 cm) from one wall and weights only 22 kg. It may be used at any formation of at least 3 units in a row: 2X4, 2x5, 3x3, 3X4, 2X5, 2X6, 4X4 or various combinations for one wall and ceiling. No other room changes are required. Roundffusor1 must be mounted symmetrically towards the common loudspeaker axis plane either behind the speakers, either on the opposite wall, or on the ceiling if necessary. Each diffuser is mounted upon 2 lateral supports, and all diffusers are mounted in parallel rows, vertically or horizontally relative to the floor, if to be put on the back wall.
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