Bass traps with an exclusive design, 300 x 300 x 600mm tiles. Boxes of 2, 4 or 8 units, to cover up to 4 corners. ZHFR acoustic foam, charcoal grey or garnet, self-extinguishing, E-d0 (EN 13501-1).
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The HAVSVÅG BT bass traps (low frequency acoustic absorbers) are specially designed to be mounted in the corners of rooms, where the maximum sound pressure in the entire frequency range is produced. They are easy to install, inexpensive and extremely effective in reducing the low-frequency effects of the room resonant modes, commonly associated with the 'boomy effect' (low-frequency accumulation) that is often heard in untreated rooms.
They are made with our high performance ZHFR acoustic foam which has excellent sound absorption levels in a wide range of frequencies (broadband absorption). Their unique appearance is the perfect complement for accompanying acoustic treatments with the HAVSVÅG panels.
Specific treatment for controlling and reducing reverberation at low frequency in musical studios and minimising acoustic anomalies in rooms (boomy effect).
They are a basic part of acoustic kits, and when used in combination with the absorption panels, they create a complete, balanced acoustic set for room treatments.
Absorption treatment for: control rooms, recording studios, rehearsal rooms, dubbing booths, radio / TV studios, home cinema...
The following table gives a rough guide of the estimated reverberation time (at 250Hz) depending on the size of the room and the number of bass traps installed.
| RT60 at 250Hz [seconds] | Room without treat. * | SKBT001-2 2 uts. BT | SKBT001-4 4 uts. BT | SKBT001-8 8 uts. BT |
|---|---|---|---|---|
| 4m2 -- h=2.5m | 1.81 | 0.91 | 0.61 | 0.37 |
| 6m2 -- h=2.5m | 2.26 | 1.24 | 0.86 | 0.53 |
| 9m2 -- h=2.5m | 2.81 | 1.67 | 1.19 | 0.75 |
* The results are obtained by estimation in a standard room with the following finishes: plaster walls and plaster ceiling, parquet floor, one window and a wooden door.
** The 'acceptable' result is suitable for rooms that contain additional furniture (curtains, carpets, bookcases, chairs with fabric upholstery, sofas...)
Physical properties |
Technical Drawing | |
|---|---|---|
| Description: Low-frequency acoustic absorber Material: ZHFR acoustic foam Composite: Flexible open-cell polyurethane Colour: Charcoal grey or garnet Density: 28 Kg/m3 (ISO 845) Porosity: 3.5 L/min (ISO 4638) Resilience: 40 % (ISO 8307) Fire Rating:
|
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Absorption coefficients in octave bands (ISO 354):
| 125 Hz | 250 Hz | 500 Hz | 1 kHz | 2 kHz |
|---|---|---|---|---|
* absorption coefficients in third octave are available in the data sheet.
Global coefficients:
| NRC |
|---|
| SAA |
Bass traps with wooden finishingz, 595 x 595 mm (thickness of 139mm). Boxes of 2 units to cover up to 0.71m2. Made by foam core and wooden panel. Optimal acoustic performance for control and mastering rooms.
Versatile bass traps (angular or flat), 600 x 600mm tiles (thickness of 120mm). Boxes of 4 units to cover up to 1.44m2. ZHFR acoustic foam, charcoal grey, self-extinguishing, E-d0 (EN 13501-1).
BASS TRAP acoustic panel with a thickness of 130 mm, in 2 sizes: 120x60 and 60x60. Wood structure and sound absorbent core made from PET synthetic fibre and acoustic fabric. Standard acoustic fabric range with 8 colours plus 23 optional colours.
Resonator bass traps measuring 595 x 595mm (134mm thickness). Boxes containing 2 units, manufactured with a wood structure, an absorbent core and resonating membrane. High acoustic performance for control and mastering rooms.
Bass traps for home cinema, 600 x 600mm tiles (thickness of 120mm). Boxes of 4 units to cover up to 1.44m2. Textile finishing in matt black, without reflections, self-extinguishing, E-d0 (EN 13501-1).
A versatile sound absorbing panel with three mounting positions. 100 x 60cm panels (thickness of 70mm). Pack with 2 units to cover up to 1.20m2 or 2 corners. ZHFR acoustic foam in charcoal grey, self-extinguishing, E-d0 (EN 13501-1).
Bass traps with an exclusive design, 300 x 300 x 600mm tiles. Boxes of 2, 4 or 8 units, to cover up to 4 corners. ZHFR acoustic foam, charcoal grey or garnet, self-extinguishing, E-d0 (EN 13501-1).
