d&b audiotechnik D12, Руководство пользователя

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d&b Q-Series 7
The Q7 and Qi7 loudspeakers
1
Broadband measurement, pink noise, crest factor 4, peak measurement, linear weighting
2 Dispersion angle vs frequency plotted using lines of equal sound pressure (isobars)
at –6 dB and –12 dB
Q7 and Qi7 loudspeakers
The Q7 and Qi7 are full range loudspeakers. The Qi7 is the
installation version of the Q7 loudspeaker, it differs only in cabinet
construction and mounting hardware.
The Q7 and Qi7 are 75° x 40° passive 2-way cabinets housing
2 x 10” LF drivers and a 1.3” HF compression driver with a
rotatable constant directivity horn and a passive crossover
network. The two 10” neodymium LF drivers are positioned in a
dipolar arrangement providing exceptional vertical dispersion
control with the 40° nominal angle being maintained down to
400 Hz. The precisely controlled 75° horizontal dispersion
performance provides the ideal pattern for many medium throw
requirements. The horn can be rotated by 90°.
The Q7 and Qi7 can be used as stand-alone full range systems
in combinations with other Q and Qi loudspeakers, ground
stacked or mounted on a high stand. Q7 and Qi7 cabinets can
also be combined in flown array systems.
The Q7 and Qi7 cabinets are constructed from marine plywood
and have an impact resistant paint finish. The front of the
loudspeaker cabinets are covered with a replaceable acoustically
transparent foam and protected by a rigid metal grill. Four M10
threaded inserts on each side panel of the Qi7 cabinet enclosure
are provided for attaching installation hardware whilst the Q7
cabinet incorporates a pair of handles and has integrated line
array rigging hardware.
System data
Frequency response (–5 dB standard) .................. 60 Hz - 17 kHz
Frequency response (–5 dB CUT mode) .............100 Hz - 17 kHz
Max. sound pressure (1 m, free field)
1
............................................
with D6 ..................................................................................134 dB
with D12 ...............................................................................138 dB
Input level (100 dB SPL/1 m) ...........................................–17 dBu
Loudspeaker data
Nominal impedance ..............................................................8 ohms
Power handling capacity (RMS/peak 10 ms) .........400/1600 W
Nominal dispersion angle (h x v) ................................... 75° x 40°
Components .....................2 x 10” driver/1.3” compression driver
.................................................................passive crossover network
Connections Q7 ......................2 x EP5, 2 x NL4 or 2 x NLT4 F/M
Connections Qi7..................................................................2 x NL4
Pin assignments ..................................................................................
EP5 ..............................................................................................1/2
NL4 and NLT4 F/M ............................................................... 1+/1–
Weight Q7/Qi7 ............................................ 22/21 kg (49/46 lb)
125 250 500 2k 1k 4k 8k 16k
90
80
70
60
50
40
30
20
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
125 250 500 2k 1k 4k 8k 16k
90
80
70
60
50
40
30
20
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
125 250 500 2k 1k 4k 8k 16k
90
80
70
60
50
40
30
20
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
125 250 500 2k 1k 4k 8k 16k
90
80
70
60
50
40
30
20
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
Q7 and Qi7 horizontal dispersion
characteristics
2
Q7 and Qi7 horizontal dispersion
characteristics/rotated horn
2
Q7 and Qi7 vertical dispersion
characteristics
2
Q7 and Qi7 vertical dispersion
characteristics/rotated horn
2
Q7 cabinet dimensions in mm (inch)
Qi7 cabinet dimensions in mm (inch)
580 [22.83"]
308 [12.13"]
204.5 [8.05"]
410 [16.14"]
15˚
15
4 [6.06"
]
60 [2.36"
]
204.5 [8.05"]
31
0
[1
2.2"
]
580 [22.83"]
308 [12.13"] 410 [16.14"]
15˚