Hi, currently running a passive 2 way system and sub with no external processing. Sony RSX-GS9 analog to amps. Utilizing the fairly archaic crossovers built into the headunit.

I've been thinking, what is even the point of keeping the Sony if I were to run a Helix DSP or amp/DSP combo (i.e. P SIX) with the director and use the USB HEC or BT module? This should give me quite a bit more tuning ability. I currently really only use BT through the Sony. Don't listen to any hi-res music routinely. If I were to keep the Sony and use an optical connection I'd lose my volume knob. Any input here? Thanks!