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Country: JapanManufacturer / Brand: Marantz Japan Inc; SagamiharaYear: 1987 ??Category: Audio Amplifier or -mixerSemiconductors (the count is only for transistors)Semiconductors present.Main principleAudio-AmplificationWave bands- withoutDetailsHi-Fi equipmentPower type and voltageAlternating Current supply (AC) / 220-240 VoltLoudspeaker- For headphones or amp.Power outfrom Radiomuseum.orgModel: Graphic Equalizer Spectrum Analyzer EQ515 – Marantz Japan Inc; SagamiharaMaterialMetal caseShapeBook-shelf unit.Dimensions (WHD)420 x 80 x 200 mm / 16.5 x 3.1 x 7.9 inchNotes10 bande per canale (31.5 Hz- 63 Hz – 125 Hz – 250 Hz – 500 Hz – 1kHz – 2 kHz – 4 kHz – 8 kHz -16 kHz) – spectrum analyzer frontale a led azzurri – input ATT 0/-6 db – EQ on/off – EQ REC on/off – tape monitor on/off – display: mic/line – dacay time: fast/slow – pink noise on/off – display level – ingresso MIC .Made in Japan.Net weight (2.2 lb = 1 kg)3.050 kg / 6 lb 11.5 oz (6.718 lb)Model page created by Edoardo Sigismondo. See “Data change” for further contributors.
This ten-lined equalizer with traditional mechanic regulations, completely justifying its definition as a graphic one, has all necessary things for sound channel setting in the part of acoustic correction in a room: and built-in pink-noise generator, and included microphone. Ten-lined analyzer is used as the indicator of measuring instrument – only one in this device. For friendliness of setting the last-mentioned has smooth control of sensitivity, while there is only step attenuator on two positions for regulation to the inputs (provides decay of 6 dB). But, from the other hand, even this is upset in the most presented models. Speaking about mechanic regulation of bandpass filters (frequency step is standard – through octave), even though the stated regulation range is +/-10 dB, in reality it is +/-12 dB. From standard features there is a tape recorder operating mode with input and output for its connection. Inasmuch as the equalizer is mechanic, any pre-installing and memorizing are upset, of course. Quite a high price is explained, most likely, by existence of the microphone. In all, equalization of room acoustics with a help of generator and microphone is quite a hard work, but noble: you don’t often guess about what dirty tricks equalization makes at every step. The difference before and after is striking with just simple device.
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Category: Sound and Vision:Home Audio and HiFi Separates:Equalisers
Location: Pleven