The ML/MCL Converter was used to convert Master Control Link (MCL) products to newer MasterLink (ML) products. There was independent volume, balance, bass, treble and loudness control via the ML input and was fitted with its internal power supply.
It was sold as a control box and amplifier which was very similar to the Beolink Passive, but without the infrared receiver ‘eye’. Looks-wise it was the same as the MCL2P unit which it replaced.
Providing 30W per channel the unit could drive up to four rooms through their passive speakers.