Probably true, and the more complex operations could suffer from some rounding error - bound to happen in a discrete math sort of environment. But a good implementor with adequate hardware should be able to make it pretty transparent on a 24+ bit DSP with any reasonable amount of care.

Take that with a grain of salt as music processing code isn't on my resume, but I'm not totally ignorant either. I've done some signal processing code, just not for music signals. It's all bits at some point.

I'd rather see well implemented digital filters on an already digital datastream than wait and do it in the analog realm, if possible. For one thing constructing two identical digital filters is trivial....