Sinclair Brighton WBT30 Owner's Manual page 7

Connecting your Speakers / La connexion de votre haut-parleur
Bluetooth Connection / Connexion Bluetooth
OPTICAL
INPUT
L
LINE IN 1
SUB OUT
R
DC IN
19V/2.5A
LINE IN 2
SPEAKER OUT
TO LEFT
BRIGHTON WBT30
SPEAKER IN
TO RIGHT