[Elecraft] K3 - Audio/IF filtering definitions

[Rick Stealey]

I'm confused as to the function of the receive equalization vs the width vs the hi
and low cut.

Example - The traditional  SSB filter is, say, a 2.7 KHz wide filter with the 
bfo carrier 300 hz from one side of the filter passband.  This provides audio response 
of 300 hz to (300+ 2700) = 3000 Hz.

So I can set my K3 to 2700 bandwidth and adjust the  SHIFT control to give the 
same response as above.  But in addition I can adjust the 8 band receive EQ to roll 
off or peak this spectrum, right?  I assume this filtering is at audio, after the detector.

Then what are the hi cut and low cut front panel controls for?  What do they control?

Rick   K2XT