G-PULTEC problems, please help!

just finished building my first eq, a gyraf pultec i paid quite a bit of attention to detail with the construction (e.g. double-checking all wiring and component values)... but sadly it doesn't work as intended on first test, and i'm wondering if anyone could suggest where i should begin in terms of fault finding... basically the controls work pretty much as expected, although with all pots at 0 (and even in bypass mode) there is a lack of bottom end (as if it's rolled off). the signal... Read more