Does anyone know the (real or claimed) values of the two filter
bandwidths in this radio? I keep hearing great things about its MW
performance and would like to check it out for myself to backyard DX
with. One thing that seems consistant in reviews is that the wide
filter is too wide and inadequate, but the narrow does a good job. The
Kiwa website doesn't state their bandwidths but rather the poor shape
factor and ultimate rejection of both.

One of the reasons that I'm interested in this model is because the
filters can be upgraded for better MW DXing, and that its actually a
true analog radio with digital frequency readout. My Channel Master
Super Fringe is a killer for casual DX, but the frequency readout is of
course terrible. The Panasonic RF-2200 is great with very accurate (to
10 kHz) readout, but I find that the narrow filter is not good enough
and it can't be replaced as its a tuned LC circuit.

Has anyone tried the 350 DL with upgraded filters? Your thought?