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4020B

Operating Manual

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Содержание 4020BMM

Страница 1: ...4020B Operating Manual ...

Страница 2: ...e loudspeakers and the signal source have been switched off The power switch of the 4020B is located on the back panel see Figure 3 Connect the loudspeaker to an earthed mains connection with the supplied mains cable Never connect the loudspeaker to an un earthed mains supply or using an unearthed mains cable Audio input is via a 10 kOhm balanced con nector The connector also has two pins for 12 V...

Страница 3: ... Off An acoustic measuring system such as WinMLS or comparable is recom mended for analyzing the effects of the adjust ments however careful listening with suitable test recordings can also lead to good results if a test system is not available Table 1 shows some examples of typical settings in various situations Figure 4 shows the effect of the controls on the anechoic response Treble Tilt The Tr...

Страница 4: ... walls cabinets etc can cause unwanted colouration blurring of the sound im age These can be minimised by placing the loud speaker clear of reflective surfaces Minimum clearances Sufficient clearance for cooling of the amplifier and functioning of the reflex port must be ensured if the loudspeaker is installed in a restricted space such as a cabinet or integrated into a wall struc ture The surroun...

Страница 5: ...tee This product is guaranteed for a period of two years against faults in materials or workmanship Refer to supplier for full sales and guarantee terms Compliance to FCC rules This device complies with part 15 of the FCC Rules Operation is subject to the following conditions This device may not cause harmful interference and This device must accept any interference received including interference...

Страница 6: ... 100 200 500 1k 2k 5k 10k Hz Genelec Oy 4020 dBr vs freq Hz 7 Nov 12 70 65 0 60 15 30 45 Figure 4 The curves show the effect of the Bass Tilt Treble Tilt and Bass Roll Off controls on the free field response of the 4020B Figure 5 The upper curve group shows the horizontal directiv ity characteristics of the 4020B measured at 1 m The lower curve shows the system s power response ...

Страница 7: ...____________ Maximum peak acoustic output per pair on top of console 1 m distance with music material 105 dB _____________________________________________ Self generated noise level in free field 1m on axis 10 dB A weighted _____________________________________________ Harmonic distortion at 85 dB SPL 1m on axis Freq 50 100 Hz 3 100 Hz 0 5 _____________________________________________ Drivers Bass...

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