d&b audiotechnik Q Series, Руководство пользователя

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6 d&b Q-Series
The Q1 and Qi1 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
Q1 and Qi1 loudspeakers
The Q1 and Qi1 are line array loudspeakers for use in vertical
columns. The Qi1 is the installation version of the Q1 loudspeaker,
it differs only in cabinet construction and mounting hardware.
The Q1 and Qi1 cabinets are passive 2-way designs that houses
2 x 10” LF drivers and a 1.3” HF compression driver with a toroidal
waveshaping device to achieve a 75° horizontal dispersion
characteristic. The two 10” neodymium LF drivers are positioned
in a dipolar arrangement providing an exceptional dispersion
control even at lower frequencies, with the 75° nominal dispersion
angle being maintained down to 400 Hz.
Q1 and Qi1 cabinets can be combined with the respective Q and
Qi subwoofer systems: in mixed line array setups, as a separate
subwoofer column or in ground stacked applications. For further
extension of bandwidth and headroom ground stacked J-INFRA
subwoofers can be used.
The Q1 and Qi1 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 Qi1 cabinet enclosure
are provided for attaching installation hardware whilst the Q1
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 ..................................................................................135 dB
with D12 ...............................................................................139 dB
Input level (100 dB SPL/1 m) ............................................–18 dBu
Loudspeaker data
Nominal impedance ..............................................................8 ohms
Power handling capacity (RMS/peak 10 ms) .........400/1600 W
Nominal dispersion angle (h) .................................................... 75°
Components .....................2 x 10” driver/1.3” compression driver
.................................................................passive crossover network
Connections Q1 ......................2 x EP5, 2 x NL4 or 2 x NLT4 F/M
Connections Qi1..................................................................2 x NL4
Pin assignments ..................................................................................
EP5 ..............................................................................................1/2
NL4 and NLT4 F/M ............................................................... 1+/1–
Weight Q1/Qi1 ............................................ 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
Q1 and Qi1 vertical dispersion
characteristics
2
Q1 and Qi1 horizontal dispersion
characteristics
2
Qi1 cabinet dimensions in mm (inch)
154 [6.06"]
60 [2.36"]
310 [12.20"]
308 [1
2.
13"]
41
0 [16.
14"]
580 [22.83"]
204.5 [8.05"]
15°
Q1 cabinet dimensions in mm (inch)
580 [22.83"]
308 [12.13"] 204.5 [8.05"]
410 [16.14"
]
15
˚