I feel like going towards discrete I/O, especially when a bunch of Forssell JFET992's will be freed from my old EQ when the BPEQ is done.
Unfortunately, they really need higher voltage rails to operate at their best. I'm currently loving them @ +/-24v, but I'm thinking I could try +/-22v for the BPEQ. This would keep a few doors open for nice IC's to use for the filters - such as 5534, LME49870 and some others. AD797 I couldn't try, which is a pity.
Of course I could power up the I/O at +/-24v and the rest at +/-15v, but it seems like a little bit of a hassle.