On connecting a Beomaster 1900 with a set of Beolab Penta

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Hi there! I have been lucky enough to acquire both a working Beomaster 1900 as well as a set of Beolab Pentas (Type 6631, MKIII). These I am currently running with a Pioneer SA-508 using an Attenuated Convertor kit (similar to this one: 
You can use the Beomaster 1900 with Beolab Pentas using the speaker link function. The amplified signal is attentuated by the Penta - you set it up using the controls on the drop down flap - this is a link to the manual telling you how to do it. https://bangolufsenassistentgohe.blob.core.windows.net/manuals/SPEAKERS/BEOLAB_PENTA/Penta_english.pdf

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