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Settings
6
6 : 1.Amplifier settings: Input Gain/Sensitivity
all k Series amplifiers allow the selection of the input
sensitivity.
TaB. 2
shows the input sensitivity values for the
k Series amplifiers. These are the maximum rMS voltage
values of a 1 kHz sine wave input before clipping occurs at
the output stage. These values are reported with respect to
the amplifier’s gain.
The maximum balanced input signal before saturation
of the input stage of the amplifier occurs with respect to the
amplifier’s gain is presented in
TaB. 3
.
Gain
K2
K3
K6
K8
K10
K20
26 dB
4.48 V
5.30 V
5.11 V
5.50 V
6.34 V
7.37 V
29 dB
3.17 V
3.75 V
3.62 V
3.90 V
4.49 V
5.22 V
32 dB
2.47 V
2.66 V
2.56 V
2.75 V
3.18 V
3.68 V
35 dB
1.59 V
1.88 V
1.81 V
1.95 V
2.25 V
2.62 V
TAB. 2: Input sensitivity (in RMS volt) @ 1 kHz vs gain.
Gain
dBV
dBu
V
rms
26 dB
25.0
27
18
29 dB
21.6
24
12
32 dB
19.0
21
9
35 dB
15.6
18
6
TAB. 3: Maximum balanced input signal vs gain.
6 : 2.Amplifier settings: Input select
k Series amplifiers allow the user to choose three dif-
ferent input modes (if available): analog, aES3
1
and/or
kaESOp
2
.
Each of these inputs can either be processed by the
internal DSp (if installed) or not.The available signal routing
path configurations are:
f
f
analog
Out
analog input and direct output
f
f
analog
DSp
Out
1
analog input routed to the internal DSp
f
f
aES3
Out
aES3 input, direct output
f
f
aES3
DSp
Out
1
aES3 input routed to the internal DSp
f
f
kaESOp
Out
2
kaESOp input, direct output
f
f
kaESOp
DSp
Out
1 2
kaESOp input routed to the internal DSp
1
available only with optional kDSp board
2
available only with optional kaESOp board
K2
K3
K6
K8
K10
K20
40/140 V 40/165 V 40/153 V 40/169 V 40/200 V 40/225 V
TAB. 4: Maximum output voltage (V
peak
).
6 : 3.Amplifier settings: Max output voltage
The max output peak voltage of k Series amplifiers can
be set by the user. it is possible to set output peak voltage
levels for channel 1, channel 2 or both. available voltage
ranges for each model are shown in
TaB. 4
.
6 : 4.Amplifier settings: Max mains current
The maximum current the amplifier can draw from the
mains can be set by the user through the front panel of all
k Series amplifiers. acceptable values are within the 8 a to
16 a for k2 and k3 and from 15 a to 32 a range for all other
k amplifiers.
Setting the maximum mains current determines the cur-
rent threshold at which a c-Type current breaker will trip.
6 : 5.Amplifier settings: Clip limiter CH1/CH2
The clip function can be used to prevent distortion
caused by clipping of the output signal.
please note that clip limiters can be set independently
for both channels.
CAUTION: disabling clip limiters can
potentially damage loudspeakers.
The amplifier’s internal clip limiters should not be deac-
tivated unless the limiting function is implemented by an ex-
ternal device such as digital system controllers. in this case,
it is extremely important to correctly set limiting parameters
in order to preserve loudspeakers from excessively power-
ful and potentially hazardous driving signals.
6 : 6.Amplifier settings: Gate CH1/CH2
This function allows to mute the amplifier channels
individually if the input signal amplitude falls below the
threshold shown in
TaB. 5
.
Gating the output is delayed by 5 seconds after the input
signal falls below the threshold. if the channel is muted, the
bottom green LED in the corresponding front panel LED
column is off.
Gain
dBV
dBu
26 dB
-54
-52
29 dB
-57
-55
32 dB
-60
-58
35 dB
-63
-61
TAB. 5: Gate threshold vs gain.
6 : 7.Amplifier settings: Mute at power on
This functions allows the user to automatically mute all
channels when the amplifier is turned on. if this function is
enabled, a “Muted” label will appear at the main screen next
to each channel at the next power on.
26 | K Series
Summary of Contents for K2 DSP+AESOP, K3 DSP+AESOP
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