Frequency Response Tests Part 2

These tests examine the effect of the Cutting Edge Filter (CEF) which is a steep high pass filter originally designed by Charlie Hall to remove any muddiness in the guitar tone by filtering out the unwanted low end frequencies.

Test 1

CEF: OFF, Presence: MIN.

Bode-#1---CEF-OFF,-Pres-Min

Test 2

CEF: ON, Presence: MIN

Bode-#1---CEF-ON,-Pres-Min

The gain now drops off steeply below about 400 Hz; for example at 200 Hz the gain goes from about -7.5 dB with the filter off to about -22 dB when it’s turned on.

But what’s with the rise again around 80 Hz? It’s probably not significant as the gain there is still about 8 dB down on the response from 1000 Hz up.

Please feel free to leave comments.

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