The proper use of an equalizer to enhance the sound of a home audio system almost certainly is beyond the capabilities of most audiophiles. The home use consumer type spectrum analyzers, noise generators, and microphones doesn't give satisfactory results based on my experience with them. It takes a well trained ear familiar with the sound of live unamplified music and extraordinary patience. It normally takes me about two years to adjust one to my satisfaction after everything else has been optimized. However, after a mere two months, I am making surprising progress on my Bose 901 enhancement project. The real problem of the moment is getting the bass right. That's often tough.

While a 10 band equalizer doesn't offer nearly the precision or flexibility of a 27 or 30 band equalizer, what it can offer is substantial improvement. It seems to me that a 30 band equalizer or a parametric equalizer would require the use of professional grade measuring equipment and a technician experienced in using it. It's simply mind boggling imagining trying to get results by ear with something that complicated.