In Phase IPA 2001D Manuel D'instructions page 19

Überbrückbare Mono-Verkabelung
VOM
RADIO
L
R
LINE OUT
SPEAKER
SPEAKER
L
R
LINE OUT
L
MIN MAX 15Hz 50Hz 0dB 12dB 50Hz 250Hz 0
LEVEL SUBSONIC BASS L.P.F
BOOST
R
LINE IN
< MASTER >
FUSE
2 OHM
FUSE
< SLAVE >
L
MIN MAX 15Hz 50Hz 0dB 12dB 50Hz 250Hz 0
LEVEL SUBSONIC BASS L.P.F
BOOST
R
LINE IN
5
VON FERN-
GAIN
CONTROL
IN
180 MASTER SLAVE
PHASE
REMOTE
OUT
MASTER/SLAVE
B+ REM GND
ON
PROT
POWER
B+ REM GND
ON
PROT
POWER
IN
180 MASTER SLAVE
PHASE
REMOTE
OUT
MASTER/SLAVE