User Manual
PT-AA140
9
LINE input
When the switch turns to “LINE” (It has a low frequency characteristics, and wide
frequency response in this mode), the microphone input is used for connecting with
normal audio or wireless microphone output. There are two different connections:
a)
Unbalanced connection:
“+” and “
” connect to ground, and “-” connects to signal.
“-” and “
” connect to ground, and “+” connects to signal.
b)
Balanced connection: “+” connects to positive, “-” connects to negative and “
”
connects to ground.
Digital Audio Input
The PT-AA140 provides with a fiber optical port to connect with digital audio source
device. With the SPF optical fiber, the audio signal can be transmitted faster, more
stable, reliable, and can be transmitted over a long distance without distortion.
Notice: This digital audio input can support/decode PCM format signal only. If the
CD/DVD is DTS or AC3 format, please set the player to PCM format output before
connect to PT-AA140.
3.4
System Application
The PT-AA140 can be applied in different occasions, such as classroom, small meeting
room, lecture hall, bar and hotel etc.
