Alternative speaker connection sockets for the living room sought

Oh, I can still answer the other part. We got an optical cable and an HDMI through a 40mm empty conduit. You won’t get much more (with a plug) through there. A loose cable, yes. Your problem won’t be the cables, but the plugs. I also see concerns with two RCA plugs. Test first... first RCA, then HDMI, and then the cable.

Just measured the HDMI cable, the connector is 2 x 1 cm. If chinch has similar dimensions it will be really exciting. Then there are 3 x 2.5mm² as well, that will be really exciting.

Anyone who is even slightly audiophile definitely won't put connectors in between. We install 11 Nubert speakers. Each one driven directly with 4x 4mm² pure copper.

Just out of curiosity, where or for what is the empty conduit supposed to be? 3x2.5 is quite something. If it only has to go through once in the end and never has to be taken out again... possible.

We solved it differently depending on the position of the Lsp. That means both boxes for connecting as well as cables directly from the wall at another location.

well 3x2.5mm² if I start from the central point, 1 cable for front right, rear right and rear left has to go through 1 empty conduit. so that's 3 cables