Operation Manual

8
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Model Number: LDU 304.7 IEMT
In-Ear Monitoring
LDU 305.1 IEMT
In-Ear Monitoring
LDU 305 IEMT
In-Ear Monitoring
LDU 306 IEMT
In-Ear MonitoringProduct Type:
LDU 308 IEMT
In-Ear Monitoring
Type: Transmitter Transmitter Transmitter Transmitter
Transmission frequency
range:
470 - 490 MHz 514 - 542 MHz 584 - 608 MHz 655 - 679 MHz
RF-Channels:
Transmission method:
Rated HF output power:
Antenna gain:
Antenna
connector:
Audio Frequency
response +/- 1,5dB:
50 Hz – 16000 Hz 50 Hz – 16000 Hz 50 Hz – 16000 Hz 50 Hz – 16000 Hz 50 Hz – 16000 Hz
THD+N @ 1kHz: < 0.5% < 0.5% < 0.5% < 0.5% < 0.5%
S/N –Ratio @ 1kHz,
A-weighted:
90 dB 90 dB 90 dB 90 dB 90 dB
Dynamic range @ 1kHz,
non-weighted:
88 dB 88 dB 88 dB 88 dB 88 dB
Input Sensitivity: -4.5 dBu (all gain
controls full, stereo
mode)
-4.5 dBu (all gain
controls full, stereo
mode)
-4.5 dBu (all gain
controls full, stereo
mode)
-4.5 dBu (all gain
controls full, stereo
mode)
-4.5 dBu (all gain
controls full, stereo
mode)
Max. Input Level: +15dBu (all gain
controls set to 9
o´clock, stereo
mode)
+15dBu (all gain
controls set to 9
o´clock, stereo
mode)
+15dBu (all gain
controls set to 9
o´clock, stereo
mode)
+15dBu (all gain
controls set to 9
o´clock, stereo
mode)
+15dBu (all gain
controls set to 9
o´clock, stereo
mode)
CMRR IEC: 45 dB 45 dB 45 dB 45 dB 45 dB
Line inputs: 2 2 2 2 2
Line input
connectors:
XLR (balanced) /
Combo TRS 6.3 mm
XLR (balanced) /
Combo TRS 6.3 mm
XLR (balanced) /
Combo TRS 6.3 mm
XLR (balanced) /
Combo TRS 6.3 mm
XLR (balanced) /
Combo TRS 6.3 mm
Input impedance: 8.5 k ohms 8.5 k ohms 8.5 k ohms 8.5 k ohms 8.5 k ohms
Controls: Input level L + R
controls, mono/ste-
reo –switch, power
on-off -button
Input level L + R
controls, mono/ste-
reo –switch, power
on-off -button
Input level L + R
controls, mono/ste-
reo –switch, power
on-off -button
Input level L + R
controls, mono/ste-
reo –switch, power
on-off -button
Input level L + R
controls, mono/ste-
reo –switch, power
on-off -button
Indicators: 2 Digit backlit
LC-display (channel
number), 2x 5
segment LED VU
Meter
2 Digit backlit
LC-display (channel
number), 2x 5
segment LED VU
Meter
2 Digit backlit
LC-display (channel
number), 2x 5
segment LED VU
Meter
2 Digit backlit
LC-display (channel
number), 2x 5
segment LED VU
Meter
2 Digit backlit
LC-display (channel
number), 2x 5
segment LED VU
Meter
Power
Consumption (nominal):
1.7 W 1.7 W 1.7 W 1.7 W 1.7 W
Operating Voltage: 12 - 18 V DC 12 - 18 V DC 12 - 18 V DC 12 - 18 V DC 12 - 18 V DC
Voltage input connector: 5.3 mm barrel jack,
plus inside
5.3 mm barrel jack,
plus inside
5.3 mm barrel jack,
plus inside
5.3 mm barrel jack,
plus inside
5.3 mm barrel jack,
plus inside
Ambient
Temperature
(in operation):
0°C - 35°C 0°C - 35°C 0°C - 35°C 0°C - 35°C 0°C - 35°C
Relative Humidity: <80%
(non-condensing)
<80%
(non-condensing)
<80%
(non-condensing)
<80%
(non-condensing)
<80%
(non-condensing)
SPECIFICATIONS
12
FM, mono/stereo
7.76mW
2.15 dBi
BNC
12
FM, mono/stereo
7.76 mW
2.15 dBi
BNC
12
FM, mono/stereo
7.76 mW
2.15 dBi
BNC
12
FM, mono/stereo
7.76 mW
2.15 dBi
BNC
Transmitter
823 - 832 MHz &
863 - 865 MHz
12
FM, mono/stereo
3.39 mW
2.15 dBi
BNC