Bwax
9
Thanks for the tips everyone. I’ll give these a shot as soon as possible.
I’m 99% sure I am using balanced cables on balanced soundcard inputs. I think I have my ins set to +4db as well. But yes, need to double check everything to be 100% sure. Not sure why I would have it different in the A4’s case, as those are my “usual” for synth inputs. But you never know - there’s a mess of cables under that desk!
I do have a mixer, but was trying to scale back gear and just go directly into a soundcard to save deskspace. Maybe I should keep the mixer if I can’t boost volume in other ways.
Yes, I have been playing with using The Glue on the A4 track. Just don’t want to over-compress. I’ll figure out how to boost volume without compressing. I think it’s something like turn the Range setting down and turn the Make-up up? Experiment and research time.
I had time last night to search for the Filter Tracking setting on the A4, but didn’t find it. I’ll keep looking.
I guess I still find it strange that everything other synth I own is almost too loud and the A4 struggles to be heard. But that’s perhaps due to individual manufacturer choices? Or maybe user-error? Yet to be determined. Quiet is not necessarily bad I don’t guess, just extra work to get it standing out in a mix, and I’m lazy. 
Thanks again everyone.
Bwax