Mono Operation - Burmester 909 MK5 Owner's Manual

MONO operation

In MONO mode a MONO adapter is required which is available on request at your local
dealer.
To use the 909 in MONO mode make the following connections:
(5) MONO adapter, red side
(7) positive loudspeaker binding post
(8) not connected
(15) MONO adapter, blue side
(13) negative loudspeaker binding post
(12) not connected
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