ООО "АЛИБАБА.КОМ (РУ)" ИНН 7703380158
link to speakers-http://alli.pub/68ijy7 The transmission line is a hollow waveguide of variable or constant cross-section. One end of the waveguide is closed, the other is open. The dynamic emitter is placed on the side of the closed end. The pipe, as a rule, is rolled up and qualitatively damped. The point is to reduce the amplitude of vibrations of the dynamic radiator diffuser in the region of the lowest frequencies near the resonant frequency of the pipe and at the same time compensate for the decrease in the return from the speaker by the transmission line's own vibrations in the main, lowest frequency mode.
The bottom line is that it is easier to design TL than other types of labyrinth design, while there will be no typical phase-invertor problems. Characteristic gundose and turbulent sounds are not typical for such acoustics. The main advantage of such speakers is the fidelity of reproduction in the low-frequency range, while maintaining rather small dimensions.

The "reverse side” of the translational line, as in structurally related labyrinths, is the criticality to the correct calculation. Significant errors in calculations will significantly affect the sound, unnecessary rattling resonances will appear, or an impressive unevenness of the frequency response. The good thing here is that it is easier to calculate it than more complex types