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Two-dimensional QRD diffuser (based on prime number 7) with hemispheric sound scattering
Design frequency: 1307 Hz
Upper cutoff frequency: 2256 Hz
Scattering effect at low frequencies down to 654 Hz
High-quality processed QRD diffuser
Two-dimensional diffuser develops its scattering effect evenly in all spatial directions
Despite its low depth, broadband effect in the range from 654 Hz to 2256 Hz
Suitable for dissipating hard reflections in the middle frequency range and thus minimizing sound colourations due to flutter echoes and strong first reflections, without overpowering the room
Temporal dispersion of the sound, small spaces appear acoustically "bigger"
Upgrading the sonic properties of a hi-fi listening room, home and project studios or recording room
Exterior frame construction made of clear lacquered 12 mm birch multiplex
Cell dividing walls made of clear lacquered 6.5 mm birch multiplex
Dimensions 600 x 600 x 100 mm
Cell size: 76 x 76 mm
Weight: 7.7 kg
Includes 4 mounting clips for wall mounting (screws not included)
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I put them opposite to one another at first reflections which are also almost center of the room.
It EQed the sound well until normal listening volumes.
quality
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Ct
Well built and very effective
C to the P 26.03.2024
I puchased the t.akustik Diffusors after having owned 8 pieces of Hofa diffusors, which I felt were underperforming (badly built and adding coloration). The Spectrum D20 is very well built: solid and heavy, not ringing at all, and doing its job much better than the Hofa variant. Do note that the slits are not all 100% straight as in the photos of the perfect sample, but it's still much better than the Hofas. Visuals aside, for the much better performance as well, they are well worth the relatively small extra cost. Note that these panels are 60 x 60, not 50 x 50 like the Hofas, meaning they are even better value for money.
I puchased the t.akustik Diffusors after having owned 8 pieces of Hofa diffusors, which I felt were underperforming (badly built and adding coloration). The Spectrum D20 is very well built: solid and heavy, not ringing at all, and doing its job much better than the Hofa variant. Do note that the slits are not all 100% straight as in the photos of the perfect sample,
I puchased the t.akustik Diffusors after having owned 8 pieces of Hofa diffusors, which I felt were underperforming (badly built and adding coloration). The Spectrum D20 is very well built: solid and heavy, not ringing at all, and doing its job much better than the Hofa variant. Do note that the slits are not all 100% straight as in the photos of the perfect sample, but it's still much better than the Hofas. Visuals aside, for the much better performance as well, they are well worth the relatively small extra cost. Note that these panels are 60 x 60, not 50 x 50 like the Hofas, meaning they are even better value for money.
quality
0
0
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M
Excellent
Marc60 08.05.2020
Excellent! I ordered 3 of these diffusers to cure troublesome 'hot' reflections on a side wall. The installation of these D20 diffusers has not only fixed the acoustic problem, it has added a welcome sense of timing and space.
Affordable, beautifully made and very easy to install with the help of the logical wall drilling templates.
