I beg to differ, a choke is a coil (inductor), and
has the opposite effect of a capacitor. In other
words, it is part of a high-pass filter that rolls
off the lows.
See original Gibson EB3 schematic here:
http://www.flyguitars.com/gibson/bass/EB3_schemati
c.php
I suppose the original intent was to make the old
mudbuckers a bit less muddy.
I concur that active EQ, onboard or a pedal would
be a better solution.
J