I've been using a Rane DEQ 60L 30 band EQ for years to compensate for my high frequency hearing loss. It requires balanced input/output and an extra set of interconnects.
I think most EQ looks more complicated that it really is.
Hmm, well I have exceptional hearing still (my ears overcompensate for my eyes, I can't see anything). I don't see that unit carried anywhere so far. I don't know how much they run either. I don't see the need to spend more than $100 or so on something like this. I'm wondering if it's even worth doing?
Yes, most EQs look complicated and can be if one does not know how to properly use EQs and what to expect.
That EQ sells for about $1,000 new at places like Music Direct or maybe Sweetwater. They are on eBay new as well. They rarely come up used on eBay and go for $400 - $500. Clark Teknics makes an less expensive EQ but it destroys sound quality. Rane does make a 15 band EQ
Less expensive, but you'd still be way over $100