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Ø MIC input
When "MIC" is selected on the switch, the microphone input is used for connecting a
dynamic microphone. There are two different connections:
a) Unbalanced connection:
"+" and "
" connects to ground, and "-" connects to signal.
"-" and "
" connects to ground, and "+" connects to signal.
b) Balanced connection: "+" connects to positive, "-" connects to negative and "
connects to ground.
Ø LINE input
When "LINE" is selected on the switch, the microphone input is used for connecting with
line audio or a wireless microphone output. There are two different connections:
a) Unbalanced connection:
"+" and "
" connects to ground, and "-" connects to signal.
"-" and "
" connects to ground, and "+" connects to signal.
b) Balanced connection: "+" connects to positive, "-" connects to negative and "
connects to ground.
l Digital Audio Input
TL-A70-40W features a fiber optical port to connect a digital audio source device.
Notice: This digital audio input can support/decode PCM format signal only. If the
CD/DVD is DTS or AC3 (Dolby Digital) format, please set the player to PCM format
output before connecting to the TL-A70-40W.
3.4 System Applications
TL-A70-40W can be used in different applications, such as classrooms, small meeting
room, lecture halls, bars and hotels etc.
4. System Operations
4.1 Operations of Front Panel
The buttons provide control of volume, EQ control, and switching. The LED indicators
will show status. The following content introduces audio switching and EQ control in
detail.
4.1.1 Audio switching
There are three switchable audio inputs, one dual-mono RCA input, one 3.5mm jack
input, and one digital fiber audio input, switchable through the buttons as below:
TL-A70-40W User Manual
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