Speakers with maze decoration

 

— speakers in which at least some of the speakers have an acoustic labyrinth.

Such a device is a kind of analogue of a phase inverter (see the relevant paragraph) — this is also an air duct of a strictly selected length connecting the internal volume of the column with the external space. The difference lies in the fact that in this case the duct is not made straight, but in the form of a “snake” with many bends (hence the name “maze”). The walls of the labyrinth are covered with special materials that absorb sounds.

This design has a number of advantages over traditional phase inverters. So, the columns are more compact; with the same body dimensions, the labyrinth has a greater effective length, which has a positive effect on the power and saturation of low frequencies; and the winding air duct is almost not subject to extraneous sounds (unlike phase inverters, where the construction must be calculated very accurately to dampen such sounds). On the other hand, labyrinths are noticeably more difficult and, accordingly, more expensive, and therefore are less common.