- Nov 30, 2006
- Hickory, MS
a workable technique for active combining to preserve differential ground referencing, is to back ground de-selected feeds. Of course the noise gain stays the same, but the differential math is still OK. .Dualflip said:The floating un-used inputs was meant for active summing,
I have followed the fad (sorry) of passive summing...you can do the same thing with passive summing but the level will change, I still think that after all that Ian has commented, its more about "patching up " the circuit so it works as good as possible and the level differences are less noticeable, whilst doing active summing is pretty straight forward. All in all I see more disadvantages with passive summing than active summing, but to each his own.
Ian nailed it... Its about using non-linear preamps with euphonious colorations.