By Wilde Becker. Speaker Stands. At Monday, July 29th 2019, 19:38:58 PM.
Fortunately, we don’t need to balance the speaker on actual springs, as a suitably dense piece of acoustic foam can act as both spring and damper. The speaker cabinet provides mass — so sitting a speaker cabinet directly onto a piece of foam, such as an Auralex MoPad, will bring about an improvement in the amount of vibrational energy getting through to the desk. However, foam isn’t particularly rigid, so the cabinet may still tend to move back and forth slightly as the speaker cones move, especially if the speaker cabinet isn’t particularly heavy.
should also avoid putting them into enclosed spaces, such as under desks with side panels, as this creates a resonant system that can further mess with bass clarity and evenness. Also be aware that you need to maintain a minimum distance between the cabinet and walls when positioning both rear–ported subwoofers and speakers. Details of how far this needs to be should be included in your speaker or sub’s manual.
One way to improve the situation is to add mass by means of a platform fixed to the top surface of the foam. Primacoustic do this in their Recoil Stabilizer by using a very thick steel slab with rubber matting on top, while Auralex and other companies use MDF topped with dense rubber on their more up–market platforms. IsoAcoustics take yet a different approach, by using a frame made from rigid components joined by resilient isolators.