D-TAR Equinox $215
3 band fully parametric eq/preamp with 20db boost and 2 notch filters. http://www.d-tar.com/equinox.shtml
This is in excellent condition with all of the original packaging. I bought it new in January (2013) to use for some pick-up trials and haven't used it since. (I've settled on a mic for amplification.) It's a great pre-amp/DI for piezo based pick-ups.
Prices include shipping ConUS