d&b V8 - Manual (Page 8)

2.4. Dispersion characteristics
The graphs below show the horizontal dispersion angle over
frequency plotted using lines of equal sound pressure (isobars) at
–6 dB and –12 dB. The nominal dispersion is maintained above
600 Hz, while a useful horizontal dispersion control is achieved
down to 250 Hz.
Fig. 6: Isobar diagram V12 horizontal
2.5. Technical specifications
V8/V12 system data
Frequency response (–5 dB standard) 67 Hz - 18 kHz
Frequency response (–5 dB CUT mode) 100 Hz - 18 kHz
Max. sound pressure (1 m, free field)
with D80
142 dB
with D12 139 dB
(SPLmax peak, pink noise test signal with crest factor of 4)
Fig. 5: Isobar diagram V8 horizontal
Fig. 7: V8 frequency response, standard and CUT modes
d&b V8/V12 Manual (1.6 EN) 8