To your original question :) . . . good analog EQs. For a great, flexible hi-fi oriented unit, the McIntosh MQ104 and MQ107 are both very good, and they're pretty cheap and plentiful used from i.e. old Mac dealers, and Audio Classics. They're a bit futzy - you do have to plug/unplug different capacitors to adjust frequency (make sure you get the capacitor kit!), but they are almost as flexible as a pro-style parametric, and sound better than many of the pro units as well.
Parametrics and DSP solutions are also frequently used with some sort of room measurement as well, and it's pretty easy to tie your brain and ears in knots by going down this road . . . sometimes a good-quality, conservatively-used graphic EQ can do wonders, for a lot less headache. For home use, the 2/3-octave style (i.e. Ashly 1502) is a good compromise between precision and fussiness.
Parametrics and DSP solutions are also frequently used with some sort of room measurement as well, and it's pretty easy to tie your brain and ears in knots by going down this road . . . sometimes a good-quality, conservatively-used graphic EQ can do wonders, for a lot less headache. For home use, the 2/3-octave style (i.e. Ashly 1502) is a good compromise between precision and fussiness.