Sorry, this page is not translated yet. Automatic translation used.
The acoustic system "Symphony ÐС-003" from the beginning of 1971 was produced by the Riga Radio Engineering plant. Specifications: 3-way speaker closed type. Sound frequency range: 50 ... 15000 Hz. Sensitivity: 92 dB. Irregularity of the frequency response in the range of 50 ... 15000 Hz: 15 dB. Sound pressure at a distance of 1 m with a power input of 4 W: 112 dB (0.25 Pa). Speaker resistance: 8 ohms. Used loudspeakers: LF: 5GD-3 (later 6GD-2). SC: 3GD-1. HF: 1GD-3. Speaker dimensions - 790x350x285 mm. Weight is 14,5 kg. This speaker was included in the top-grade stereo radio set "Symphony-003".