Thanks, John's answer is perfectly correct in that the audio is digitized and the neverything is forgotten about that it ever was in the system in analogue format, the question should have been clearer with less info from me [Linked Image from softronix.com]

So, the "real question" is: "How do I affect the signal depending on from which input source it is coming, in particular with regard to Bass Management"? I'll look at what crion is hinting at, if I don't get a guide in a while... [Linked Image from softronix.com]

HD621, G98DH, G68ADV, Bc Acoustiqe ACT A3, 5200C DSP33, NuForce Reference 9 monoblocks, 2x SB3's, Velodyne DD-15 & DD-12 Subwoofers and a Meridian sub.