Reply To: BeoSystem 3 MK1: No Sound via S/PDIF AV5 with LG TV

[Alexey Malyugin]

Hello! I tried two audio converters:
PALMEXX optical-to-coaxial converter

Noname Bitstream optical-to-coaxial converter

I also tested directly with a DVD player. When connecting the DVD, the sound came on immediately! The sound system displayed Dolby Digital 2.

When connecting through either of these converters, the display shows “Mono/Stereo,” but there is no sound. I tested with both Dolby Digital and PCM on the LG.

The support service of both converter manufacturers replied that PCM settings are required. In other words, the signal is transcoded into PCM, and the processor should process it, which, apparently, is not happening with my BeoSystem 3.

My conclusion: I need a converter that will transmit the signal unchanged, simply converting Toslink to Coax.

Having searched the forum, I did not find a single example of a confirmed working converter. Could you help me choose one that definitely works?

I know one nuance: BeoSystem 3 accepts only standard Dolby Digital (not DD+) and 48 kHz.