Speaker vibration isolation mounts
Structural Anti-vibration hangers for speakers
For effective structural vibration isolation specific suspension mounts are required to prevent noise from speakers entering the structure. Usually speakers are directly connected via rigid brackets to walls or ceilings. This transmits high levels of vibrational energy into the structure which will then travel almost unhindered throughout a building.
Our ST Range of anti-vibration hangers can take loads from 5kg up to 60kg. Usually a minimum of 2 or 3 are used per speaker so to work within their designed deflection loadings the speaker needs to weigh at least 5kg (using two hangers). They provide a high degree of structure borne noise isolation, thanks to their low stiffness they are capable of achieving natural frequencies ranging from 3 to 4Hz. Another example would be using three ST5...if the speaker weighs 12kg then each mount will be loaded with 4kg per mount which is ideal. If the speaker weighed 30kg then each ST5 would be loaded with 10kg which would be too much per mount. If you are unsure...email us.
The mounts are fixed to the ceiling using suitable screw/fixing or with a threaded rod (via the 6mm top hole and threaded nut provided) and the soft foam top needs to be compressed by about 3mm via tightening of the fixing. A threaded M6 rod is secured to the spring top housing and down to a suitable sidebeam or back plate fixed to the speaker body.
|Type||Max. permanent load PER MOUNT (kg)|
The design of these acoustic hangers is composed of:
- 1. Metal parts that are mechanically fail-safe.
- 2. A rubber moulded part equipped with an end stroke buffer incase the acoustic hanger is ever overloaded.
- 3. A prime degree steel coil spring to provide low natural frequency to the acoustic hanger.
- 4. A Sylomer layer to isolate mid-high frequencies that could travel through the coil spring.
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