d&b audiotechnik 4S Руководство - Страница 8

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Fig. 8: Isobar diagram horizontal

Fig. 10: Isobar diagram horizontal

Fig. 12: 4S frequency response, standard and CUT modes

2.4. Dispersion characteristics

The following graphs show dispersion angle over frequency of a

single cabinet plotted using lines of equal sound pressure (isobars)

at –6 dB and –12 dB.

Fig. 9: Isobar diagram vertical

Fig. 11: Isobar diagram vertical

4S system data

Frequency response (–5 dB standard mode)

Frequency response (–5 dB CUT mode)

Max. sound pressure (1 m, free field)

with 10D/D6

with 30D/D20/D12

with D80

(SPLmax peak, pink noise test signal with crest factor of 4)

130 Hz - 20 kHz

180 Hz - 20 kHz

114 dB

115 dB

d&b 4S/5S Manual 1.3 en