A 562 will accommodate all your analogue (and digital) sources.

In an 18-bit 2.0 system I would go 562Vx. Sell the 541 (which won't act as controller for DSPs) and you'll be quids (or dollars) in. Plug everything direct to the 562 and it will act as your ADC (which you'd need anyway with DSPs) and give you comms.

A 568 would be even better for not that much more of an outlay.

Sooloos, Roon, G series (with LPS upgrade), 800 series (with LPS upgrade), HD621, AC200, Prime and PS, DSPs old and new.

Purdeys, Moke, Leica, 'Blad. Only the best.