@tlcocks
No, I do not use a professional EQ in my home 2-ch system. I have used EQ units (together with several other processors), principally in a recording studio setup, where any "processing effect", can be routed through a patch bay, and be inserted into a signal path. Of course the studio setting is very different from a home set-up. In the studio, the "raw" talent sources are always unique/different, so the engineer will select as necessary whatever processing my be required. This is totally different from the playback of commercially (finished) mastered (analog or digital) music on our home systems. It's the mastering engineer's job to produce masters that will be highly listenable on MANY different systems. Whether your system can get the maximum sonic results out of the mastering engineers efforts is dependent on the synergy of the gear choices you make. As you know, theoretically, if you have well matched speakers, amps, preamp, sources, and even cables, you should be able to experience the result the mastering engineer intended in a sonically pleasing fashion.