5. Setting the Mixer into Operation
5.1 Operation with Computer
When operating the mixer with a computer, either use the audio software
supplied with the operating system or an audio software installed additionally.
Various programs for audio reproduction/recording are available on the Internet
free of charge.
1. Start the computer. Connect the USB port (5) to a USB connection on the
computer via the USB cable provided. Switch on the mixer with the switch
POWER
(8) [position "
ON
"]. The
LED ON/CHARGE
(6) lights up according to
the battery charge status (chapter 5.3). The computer recognizes the USB
interface ofthe mixer as an external device for audio input and audio output,
e. g. as USB Ear Microphone, depending on the operating system. The required
drivers (standard drivers of the operating system) are available on the computer.
Note:
If not all drivers required are available on the computer, install them, e.g.
via the original CD of the operating system. Restart the computer after installation,
if necessary.
2. Open the reproduction/recording program and make the required settings for
audio reproduction via the mixer or audio recording from the mixer
(user manual of the program). Then operate the mixer according to chapter 6.
If it is not possible to record or reproduce any sound, make sure to activate the
USB interface for audio Input or audio output In the system settings ofthe
operating system of the computer.
Hint:
If the mixer is connected to a computer and to any units earthed via their
mains cables (e.g. amplifiers), there may be hum noise due to ground loops. To
eliminate this noise, connect the mixer to the corresponding unit via a ground
isolator.
5.2 Operation with Power Supply Unit
Via its USB connection, the power supply unit must provide an output voltage of
5 V and an output current of 500mA. Connect the power supply unit to the USB
port (5) via the USB cable provided, then connect it to a mains socket. Switch
ON
the mixer with the switch POWER (8) [position "
ON
"].The LED ON/CHARGE (6)
lights up according to the battery charge status (chapter 5.3).
6
7
5.3 Charging the Battery/Battery Operation
To ensure the maximum operating time (approx. 4 hours) when the mixer is
operated via the integrated rechargeable lithium-ion battery, fully charge the
battery prior to operation.Connect the USB port (5) to a computer (chapter5.1)
or to a power supply unit (chapter 5.2).The LED ON I CHARGE (6) shows the
charge status and operating mode:
1. With the mixer switched off [switch
POWER
(8) set to "
OFF
"], the
LED ON/
CHARGE
shows green while the battery is being charged. When the battery has
been fully charged, the LED is extinguished.
2. With the mixer switched
ON
[switch
POWER
set to "
ON
"], the
LED ON/CHARGE
shows red and green (= yellow) at the same time while the battery is being
charged. When the battery has bean fully charged, the LED shows red.
To save battery power, the
LED ON/CHARGE
do as not light up during battery
operation. Therefore, you may easily forget to switch off the mixer. To prevent the
battery from being completely discharged, always make sure to sat the switch
POWER
to "
OFF
" after operation.
6. Operation
1. Switch
ON
the mixer with the switch
POWER
(8) [position "
ON
").
2. For basic setting, set the controls
MASTER
(14) and
GAIN
(15) approximately to
mid position for the time being.
3. When a microphone is connected to the jack MIC IN (1), speak into the
microphone and turn up the corresponding control LEVEL (17) until you
obtain a good microphone signal. If you need to turn up the control LEVEL
completely for this purpose, further turn up the control GAIN (15). However, if
the LED PK (19) lights up and is not extinguished immediately, turn back the
control GAIN. The LED PK must only briefly light up with level peaks.
4. Use the panorama control PAN (18) to place the microphone signal on the
stereo base. Adjust the sound with the controls HI and LO (16).
5. Turn up the control LEVEL (21) for channel CH 2/3 until you obtain a good input
signal. To assign the input signal of the USB port (5) to channel CH 2/3, press the
button USB ASSIGN TO CH 2/3 (23). When the button is engaged, the USB input
signal and the signal of the input LINE IN (2) usa the same channel. Therefore,
do not use the Input LINE IN If you Intend to reproduce only the USB Input
signal via channel CH 2/3.
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