Seymour Duncan SFX-07 Music Pedal User Manual


 
3
Explanation of Controls
Front Panel (See page 2)
1. Depth – “How much tremolo would you like?” This wide-range
control smoothly varies the tremolo effect from a subtle shimmer to an
intense rhythmic pulse.
2. Shape – “When should the rise and fall occur?” This amazing
control allows for the variation of tremolo rise and fall time (how fast
or slow the volume increases and decreases) for unique percussion
and “reverse decay” effects.
3. Wave – “What should the tremolo wave look like?” This continuously
variable control takes you from a smooth sine wave of your favorite
vintage amps, to a choppier triangular wave to an abrupt on/off pulse
square wave.
4. Rate/Ratio Knob – “How fast am I going?” This knob carries two
functions. When in “Rate” mode, this knob simply adjusts the rate of the
tremolo effect. From one pulse per second to more than twenty per sec-
ond, this is a continuously variable control. When in “Ratio” Mode, this
control takes you through four tempo subdivisions: 1x, 2x, 3x, and 4x,
or quarter-notes, eighth-notes, triplets, and sixteenth-notes. This is not
a continuous control, but corresponds to the four distinct ratios marked
on the outer band.
5. Rate/Ratio Mode Switch – “What will the Rate knob do?” This switch
governs how the Rate/Ratio knob operates (see Rate/Ratio Knob
description above).
6. Rate/Ratio Indicator – Turns on when in “Ratio mode”.
7. Tap Tempo Footswitch – “Let me set the tempo.” This switch lets you
match the tremolo rate to any song or groove on the fly by simply
tapping along in time. Even if you’re in Rate Mode (as selected by the
Rate/Ratio Mode Switch), you can override the Rate setting by tapping
in a new tempo at any time (the default setting is eighth-notes, or two
trem cycles per tap). If you’re in Ratio Mode, entering your tempo on
the Tap Tempo Footswitch will default to the rhythmic subdivision the
Rate/Ratio knob. For example, when set to 3:1 you can tap in your