Sir Real
15-05-2020, 10:17
Hi AV gurus (I hope!)
I'm puzzled. I'm in a modern(ish) flat, with wiring conduits built into the walls. I've run 2 cables from one side of my room to the other. There's a speaker cable, terminated with banana sockets for the right rear speaker. The other cable is terminated with phono sockets. Plan is to use an active sub at the rear (and wire the left rear speaker separately).
I've used a mono amp and single speaker to test both as speaker cables, and they're fine. Connect the amp input to the phono cable (with different sources connected to the other end at different times) and the amp hums as it does when no source is connected to its inputs.
So both cables are intact, and work fine with speakers, but the phono cable doesn't connect a line level signal at all. All I can think of is that it's attenuation. It's a long cable run, from room to a hub in the hall, and out again to the other side of the room. So 15m or so of 1.5mm cable, but attenuation doesn't seem to be the most likely cause, as I'd expect at least some of the signal to get through.
Any suggests at all why the phono cable doesn't work? A passive sub would work, but they seem to be like hens' teeth at the mo', or I could use a wifi phono sender to connect the sub, but my preferred option would be the cable connection.
TIA
Chris
I'm puzzled. I'm in a modern(ish) flat, with wiring conduits built into the walls. I've run 2 cables from one side of my room to the other. There's a speaker cable, terminated with banana sockets for the right rear speaker. The other cable is terminated with phono sockets. Plan is to use an active sub at the rear (and wire the left rear speaker separately).
I've used a mono amp and single speaker to test both as speaker cables, and they're fine. Connect the amp input to the phono cable (with different sources connected to the other end at different times) and the amp hums as it does when no source is connected to its inputs.
So both cables are intact, and work fine with speakers, but the phono cable doesn't connect a line level signal at all. All I can think of is that it's attenuation. It's a long cable run, from room to a hub in the hall, and out again to the other side of the room. So 15m or so of 1.5mm cable, but attenuation doesn't seem to be the most likely cause, as I'd expect at least some of the signal to get through.
Any suggests at all why the phono cable doesn't work? A passive sub would work, but they seem to be like hens' teeth at the mo', or I could use a wifi phono sender to connect the sub, but my preferred option would be the cable connection.
TIA
Chris