Frequency Response Tests Part 1

Bode plots were performed on the FET eTap2HW unit to study the effect of the Presence control and the Cutting Edge Filter (CEF).

The input signal was a 250mV peak swept frequency sine wave. Sweep range 50 – 5000Hz. Echo Model 7, all controls zero, Level = 6

Test 1

CEF: OFF; Presence: Min;

Some crazy phase shift stuff going on!

Some crazy phase shift stuff going on!

Test 2

CEF: OFF; Presence: Max;

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

Note the presence peak at around 2.24 kHz

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