grille cloth

grille cloth

[′gril ‚klȯth]
(engineering acoustics)
A loosely woven cloth stretched across the front of a loudspeaker to keep out dust and provide protection without appreciably impeding sound waves.
References in periodicals archive ?
The XM Compact Sound System is a sleek, tabletop unit with an aluminum surface and black grille cloth design that fits smaller spaces like a night table, kitchen counter, or desk.
Near the end of the production run, before the grille cloth is added, the performance of each speaker is tested both audibly and electronically and compared to standard parameters.
They cover just the drivers, and since the entire cabinet is finished they reveal as much of the attractive front baffle as if no grille cloth was used at all.
This indicates that the grille cloth is acoustically transparent and the felt lining the inside edge of the grille frame is an effective mitigator of diffraction.
Then add frames covered with more black grille cloth to the front and rear of the speakers, but remember that these frames stick out only about 7" each.
The satellite speakers are housed in real aluminum with wood-finish end caps and light gray grille cloths, while the subwoofer has a wood finish.