Bang & Olufsen BeoLab loudspeakers can be connected with DIN8 (powerlink) or via Rca/tulip (older types)(picture left)
such as, Beolab 1/2/4/5/7/10/11/2500-3000/4000/4500/5000/6000/8000/beolabpenta.
Newer speakers such as: Beolab 3/9/4002/6002/8002 have LINE via a DIN connection (picture right)
On both speakers, the switch should be set to LINE if you use RCA cable, if you use the powerlink (DIN8), then set it to the R or L position.
The right image can be connected with the RCA to DIN line cable, older versions will NOT work with this cable, read first line.