Tesla ARZ 572 Czechoslovakian speakers - audio test and frequency response

My setup of local announcement system. Composed of control panel Tesla AUA 230 and power amplifier Tesla AUC 2050 - All made in Czechoslovakia 1974 - runs on 3 phase 400V~ : r/audiophile

Speaker ARZ 572 Speaker-P Tesla; Praha, Bratislava etc., build

Sigma eltec::Best in the WORLD

Audio/speaker repairs & tests

Exploration of data provided by vendors

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Exploration of data provided by vendors

тесла динамики, PDF, Loudspeaker