Is there something wrong with the (left) speaker or in my signal chain
....the answer to your question can be found by changing L/R, stage by stage, and seeing if the problem moves from one side to the other. Start by physically swapping the speakers, if you suspect them.
When the problem moves, you found it. If it doesn't move then you probably have some room problem, reflection, resonance etc.
To answer my own question maybe but could it be something to do with the left channel on the DAC?
... JRiver**.** Linux, here.
I like my audio players simple
Cheers. But I'm happy with DeadBeef. I like my audio players simple
Swap Left/right from DAC to amp. If the problem goes away, you just have to listen to music upside down from now on......or find some way in the software to swap L/R channels* . On my system that would be trivial, because I use JACK, which is like having a patch panel on the screen. I have no idea about JRiver**.* You probably want to do this anyway, unless you get a clear instant result.** Linux, here.
Yeah, I hear that. I like mine free, so I use MusicBee (*GASP*), and Foobar2000