Seymour Duncan Music Pedal SFX 07 User Manual

ForToneThat SetsYou Apart TM  
TM  
Congratulations on your purchase of the Seymour Duncan  
SFX-07Tremolo Pedal™.You can start using yourTremolo right  
away and you’ll be able to immediately revel in the hypnotic, pulsing,  
vibey tones that this pedal is capable of.You might want to first read  
through these instructions in their entirety to gain valuable information  
that will enhance your enjoyment of yourTremolo.  
 
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. TapTempo 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  
theTapTempo Footswitch will default to the rhythmic subdivision the  
Rate/Ratio knob. For example, when set to 3:1 you can tap in your  
 
Explanation of Controls  
tempo and the tremolo pulsations will occur in triplets. (Don’t worry if  
this sounds confusing—its actually really intuitive and fun when you’re  
plugged in.)  
8. Heartbeat LED – “How fast am I going?” In addition to indicating the  
pedals on/off status, this light pulses in time with the tremolo effect for  
easy Rate setting.The character of the LED also changes to reflect the  
Wave and Shape settings, for a highly intuitive visual reference.  
9.True-Bypass Footswitch – “Get out of my signal path!” Shutting the  
pedal off removes the circuit from your guitars signal chain.This allows  
your guitars signal to pass through the Shape Shifter without affecting  
your tone or gain. In addition, when bypassed, the processor goes into a  
sleep mode to preserve battery life.  
Back Panel  
1. Input Jack – Plug in your guitar signal here. (or if compatible, the send  
from your amps effects loop)  
2. Output Jack – Provides the output signal. Run a cable from this jack to  
the input of a guitar amp. (or if compatible, the return jack of your amps  
effects loop)  
3. Power Jack This is where you can connect a regulated 9-volt DC  
adapter (center negative) such as the Seymour Duncan 11802 if you opt  
not to run theTremolo on a 9-volt battery.  
1
2
3
 
BACK PANEL  
The SFX-07 is an incredibly flexible effect and, as a result, it can be  
worked into your setup in a variety of ways. Lets examine a couple of  
possibilities.  
Between Guitar and Amp  
Take the ¼” mono instrument cable from your guitar and plug it into  
theTrems Input jack. Run another cable from the Shape Shifters Output  
jack to the input of your amplifier. Set all the controls to 12:00 for  
starters, hit the On/Bypass footswitch, and listen to how cool your  
guitar sounds bathed in theTrems pulsating, undulating goodness.  
If you have other stompboxes in your chain, such as distortion or  
chorus pedals, experiment with placing the SFX-07 Shape Shifter  
before or after them.You can’t really go wrong, but the character of the  
tremolo effect will change depending on where you put it in your signal  
chain so see what sounds best to you.  
In an Effects Loop  
The SFX-07 Shape Shifter will sound different depending on where you  
place it in your signal chain, i.e. before or after distortion. You might  
want to try it in your amps effects loop.To do this, run a ¼” mono  
instrument cable from your amplifiers effect send jack to the Input of  
the Shape Shifter. Run another cable from the units Output jack to the  
effect return jack on your amp.This puts the effect post-preamp, making  
it react more like traditional amp tremolo. Some effects loops—  
particularly those in older tube amps—are expecting line level signals  
(like the signals from most rackmount gear) and thus gain the  
reputation of not “playing nice” with certain stomp boxes.The  
Shape Shifter is designed for instrument level signals, but can accept  
maximum input levels of ~2v. If your level drops, or your tone gets  
weird when running the SFX-07 in your loop, then by all means get  
it out of there.  
 
In-Depth Examination of Features  
The SFX-07 Shape Shifter is capable of a huge range of sounds from  
the traditional, old-school trem tones heard on your favorite recordings  
to wild, sci-fi effects that are not possible with any other tremolo pedal  
on the planet. We’ll start with the old-school first and then move into  
the mind-boggling.  
Classic AmericanTrem  
To achieve the lush, vibrant  
tremolo found on classic  
American amplifiers, try these  
settings.  
This produces a smooth, round,  
even pulse thats great for  
classic rock, alt-country, and  
spaghetti western flavors.  
Classic BritishTrem  
British tube amps put their own  
spin on tremolo and the results  
have fueled a bunch of timeless  
songs. Heres how you can grab  
a piece of that magic.  
This will give you a dreamy  
throb with a slightly choppier  
quality.  
 
Fluttering Shimmer  
These settings give a cool,  
warbly quality to single-note  
lines reminiscent of organs and  
vibraphones.  
Helicopter Chop  
This is a more radical version of  
tremolo that produces an on/off  
stutter that can really drive a  
tune.  
 
For the Sonic Adventurer  
Notes onTapTempo  
TheTapTempo feature of the SFX-07 is an incredibly powerful tool that  
takes this pedal way beyond what “normal” tremolos can do. It totally  
removes the guesswork of trying to sync your trem pulse to a songs  
groove. Simply tap your foot on theTapTempo footswitch and you’ll  
hear the tremolo effect fall right in line, right on the downbeat, every  
time—with whateverWave, Depth, and Shape settings you’ve chosen.  
If the Rate/Multiplier Mode switch is set to Rate, hitting theTapTempo  
footswitch will generate two trem cycles per tap. When this switch is set  
to Ratio, you can choose between one, two, three, or four trem cycles  
per tap, depending on which quadrant the Rate/Ratio knob is set to.  
Hint:The triplet setting (three cycles per tap) works great over shuffle  
grooves.  
Another cool thing about Ratio mode is that you can change rhythmic  
subdivisions on the fly and they stay on the downbeat. Previously, this  
would be tough to pull off in a live situation for guitarists. It might seem  
like a studio trick or a DJ effect, but with theTapTempo footswitch, it is  
now within your reach. In Ratio Mode, set the Rate knob to the 1x (fully  
counter-clockwise) quadrant and enter the tempo of the song you’re  
playing with theTapTempo footswitch. Hit a chord and, while its ringing,  
rotate the Rate/Multiplier knob through the 2x, 3x, and 4x quadrants.  
What you’ll hear is your chord pulsing quarter-notes, then eighth-notes,  
then triplets, and finally sixteenth-notes, all in sync, and all hitting on  
the downbeat.The Shape Shifter has a “top speed” of 20hz. If you’ve  
already reached this top speed in the tap section, then increasing the  
Ratio can no longer have an effect.  
 
Shape Shifting  
By now you’ve figured out that the SFX-07Tremolo can do classic trem  
beautifully. But it can do more—a lot more.The key to many of the  
SFX-07s most unique effects lies in the Shape control. So what does  
this knob do anyway?We’re glad you asked . . .  
Most tremolos increase the volume over a certain period of time  
(say, a quarter of a second) and then decrease the volume over the  
same period of time. This gives a smooth, even feel to the tremolo  
effect.When set to the middle of its range, the Shape control on  
the SFX-07Tremolo does exactly that.  
But heres where things get interesting. When the Shape control is  
rotated away from its center position, the relationship between the  
time spent increasing the volume and the time spent reducing the  
volume changes. For example, instead of a quarter of a second of  
volume increase followed by a quarter of a second of volume decrease  
(for a total time of a half second for a full tremolo cycle), you can dial  
in one-tenth of a second of volume increase followed by four-tenths of a  
second of volume decrease, or vice-versa. This adds a very different feel  
to the tremolo effect. From slightly skewed to one direction or another,  
to an instant rise or fall time, the tremolo effect now offers more than  
just a simple pulse. Plus, we found that with various vintage tremolo  
devices, during the rise and fall, the actual tremolo function can pull  
and sag voltage back and forth.The current draw and release can subtly  
affect the audible rise and fall times, creating a waveform that isn’t  
perfectly symmetrical. At extreme settings, with a fast swell and a slow  
drop in volume, the effect is percussive and makes a clean guitar almost  
sound like a piano. Conversely, with a slow swell and sudden drop,  
your guitar tone sort of sounds like its being played backwards.  
Because of its radical nature, this control may take a little getting used  
to, but if you want to create tones that have never been heard before,  
the Shape control will be your best friend. Here are some righteous  
sample settings to get you out of your same-old same-old.  
 
Backwards?  
This is a cool, psychedelic sound  
that will add a whole ’nother  
dimension to a tune, whether  
you sync it to the songs tempo  
with theTap footswitch or just  
set the rate randomly.  
Faux Piano  
This tone really lends itself to  
TapTempo synchronization. Its  
bizarre rhythmic pulse can easily  
be the main part of a song. It  
practically plays itself!  
Seizure  
Rave out to this maniacal  
sputtering effect, and if you’re  
quick on your feet, see if you  
can beat the machine clock with  
the tap button!  
 
ꢀ0  
Specifications  
Type of Circuitry: Pure analog signal path, digital tremolo timing  
Input Impedance: 1 Meg Ohm  
Output Impedance: 1.2K ohm  
Gain: 2.5dB maximum  
Max Output before Saturation: 2.8V RMS  
S/N Ratio: 95dB  
Frequency Response: Wideband; -3dB at 3Hz and 165 kHz  
THD: 0.09% @ 1 kHz, 1VRMS  
Tremolo Characteristic: Gain variation linear in dB  
Control functionality:  
Depth: Continuously adjustable from 0 to 28dB  
Shape (Duty Cycle): Continuously adjustable from 10% to 90%  
Wave: Continuously adjustable, sine to triangle to square waves  
Rate: Continuously adjustable from 1 to 20 Beats per second  
Tremolo Rate Controls: Speed knob, tap tempo button, rate multiplier  
control  
Power: 9V battery or 9V regulated DC adapter  
Current Consumption: 7mA operate, 3mA bypass  
Dimensions: 5.50” wide X 5.20” deep X 2.20” tall  
Weight: 1.9 lbs.  
Chassis Material: 16 gauge steel  
Bypass: True hard-wire bypass  
 
ꢀꢀ  
LimitedWarranty / Disposal Guidelines  
Seymour Duncan offers the original purchaser a one-year limited warranty  
on both labor and materials, starting from the day this product is purchased  
from an Authorized Seymour Duncan Dealer. We will repair or replace this  
product, at our option, if it fails due to faulty workmanship or materials dur-  
ing this period. Defective products should be returned to your USA dealer,  
international distributor, or sent direct to our factory postage prepaid along  
with dated proof of purchase (e.g., original store receipt) and a RMA number  
clearly written on the outside of the box. Please call our factory for issuance  
of an RMA number.  
This warranty does not apply to damage to this product or an instrument  
caused by misuse, mishandling, accident, abuse, alteration, modification or  
unauthorized repairs. Product appearance and normal wear and tear (worn  
paint, scratches, etc.) are not covered by this warranty. Seymour Duncan  
reserves the right to be the sole arbiter as to the misuse or abuse of this  
product. Seymour Duncan assumes no liability for any incidental or  
consequential damages, which may result from the failure of this product.  
Any warranties implied in fact or by law are limited to the duration of this  
express limited warranty.  
This product must not be disposed of with your other household waste.  
Instead, it is your responsibility to dispose of your waste equipment by hand-  
ing it over to a designated collection point for the recycling of waste electrical  
and electronic equipment.The separate collection and recycling of your waste  
equipment at the time of disposal will help to conserve natural resources  
and ensure that it is recycled in a manner that protects human health and the  
environment. For more information about where you can drop off your waste  
equipment for recycling, please contact your local city office, your household  
waste disposal service or the shop where you purchased this product.  
Designed and Distributed by:  
Seymour Duncan / Basslines  
5427 Hollister Ave.  
Santa Barbara, CA 93111-2345 USA  
tel: 805-964-9610  
fax: 805-964-9749  
The SFX-07 is made in China. Designed and tested in USA.  
 
Printed in China. © 2007  

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