Operation with D12
IMPORTANT!
Selecting Q10 mode in the D12 enables up to two Q10 loudspeakers to
be driven by the respective channel. In applications with low continuous
levels or low ambient temperatures up to three cabinets can be
connected.
Controller settings
For acoustic adjustment the functions CUT, HFA and CPL can be
selected.
CUT circuit
Set to CUT, the Q10 low frequency level is reduced. The Q10 is now
configured for use with the Q-SUB or d&b C-Series subwoofers.
HFA circuit
-5
0
5
10
-10
-15
-20
-25
-30
20
100
1k
10k
20k
Fig. 3: Frequency response correction of
HFA circuit
In HFA mode (High Frequency Attenuation), the HF response of the Q10
system is rolled off. The HFA provides a natural, balanced frequency
response when a unit is placed close to listeners in near field or delay
use.
High Frequency Attenuation begins gradually at 1 kHz, dropping by
approximately 3 dB at 10 kHz. This roll-off mimics the decline in
frequency response experienced when listening to a system from a
distance in a typically reverberant room or auditorium.
CPL circuit
Fig. 4: Frequency response correction of
CPL circuit
The CPL (Coupling) circuit compensates for coupling effects between the
cabinets when building closely coupled arrays. CPL begins gradually at 1
kHz, with maximum attenuation below 400 Hz, providing a balanced
frequency response when Q10 cabinets are used in arrays of two or
more. The function of the CPL circuit in the D12 amplifier is shown in the
diagram opposite and can be set in dB attenuation values between –9
and 0, or a positive CPL value which creates an adjustable low
frequency boost around 65 Hz (0 to +5 dB).
Operation with E-PAC
Selecting Q10 mode enables the E-PAC to drive one Q10 loudspeaker.
LO IMP mode configures the E-PAC to drive a maximum of two Q10
loudspeakers with a 6 dB reduction in input level to the loudspeakers.
For acoustic adjustment the functions CUT and CPL can be selected. The
E-PAC CPL circuit creates a 3 dB attenuation corresponding with the –3
dB curve shown in Fig. 4.
Q10 Manual
(1.3E)
Page 5 of 10
Содержание Q10
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