3
1
2
3
4
5
6
7
8
INPUT
PHONO
LINE
FILTER
LOW CUT
FLAT
GAIN TRIM
SIGNAL/
CLIP
PRE
AMP
–10
+10
dB
MONITOR
0
10
SOURCE
LEVEL
MIX
USB-SOUNDBOX
USB AUDIO INTERFACE
ON
OFF / USB
PC
AUDIO
POWER
➀
S/PDIF IN
PC AUDIO OUT
PHONO IN
S/PDIF OUT
L
R
9 V /~
150 mA
GND
PREAMP OUT
LINE IN
LINE IN
PHONO IN
S / PDIF IN
S / PDIF OUT
GAIN TRIM
PHONO
LINE
FILTER
PREAMP OUT
SIGNAL/
CLIP
LEVEL
MONITOR
INPUT
PC AUDIO OUT
L
R
L
R
L
R
L
R
SOURCE
PC AUDIO OUT
MIX
PREAMP
GND
RIAA
FLAT/
LOW CUT
A
D
USB
D
A
9
10
11
12
13
14
15
16
17
Blockschaltbild • Block diagram
➁
➂
