Seymour Duncan SFX-07 Shape Shifter

Seymour Duncan SFX-07 Shape Shifter

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SFX-07 Shape Shifter, Tremolo pedal from Seymour Duncan in the SFX series.

4 user reviews

Seymour Duncan SFX-07 Shape Shifter tech. sheet

  • Manufacturer: Seymour Duncan
  • Model: SFX-07 Shape Shifter
  • Series: SFX
  • Category: Tremolo pedals
  • Added in our database on: 02/08/2008

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Seymour Duncan SFX-07 Shape Shifter user reviews

Average Score:4.8( 4.8/5 based on 4 reviews )
 3 reviews75 %
 1 user review25 %

moosers's review

Seymour Duncan SFX-07 Shape Shifter
The Seymour Duncan SFX-07 Shape Shifter is a tremolo pedal that I have experience using with electric guitar. Like pretty much all tremolo pedals, this can be used with other electric instruments as well, but I've only used the pedal for electric guitar, so this review will be focused on this application of the pedal. I'd imagine that most people looking at this review will be interested in it as a guitar pedal anyway. The pedal is an analog one, consisting of 1/4" connections for input and output and requires nine volt power from either a power adapter or a battery. It isn't rackable in any form as it is stomp box.


I didn't find that using the Seymour Duncan SFX-07 Shape Shifter was a hard thing to do at all, as it is generally easy to follow. I've used a lot of different tremolo pedals out there, but even if you don't have as much experience with them I think you'll still be able to figure out this one rather quickly. The SFX-07 has parameters for depth, speed, wave, and rate, which will definitely be familiar parameters for experienced users of different tremolo. However, it is nice to see all four of them in one place as usually you'll see a few them on most pedals. The rate knob can actually be used either as ratio or rate level depending on how you switch it. You've also got a tap tempo button in addition to one for bypass. I don't think users will need a manual for the SFX-07 as it is easy enough to figure out on it's own.


The tone of the Seymour Duncan SFX-07 Shape Shifter is pristine in every way. I don't think that I have a bad thing to say about the pedal, as in general I'm a big fan of it's tone quality. I've used the pedal with a Fender Jazzmaster and a Fender Blues Jr amp, which doesn't have any built in effects. I usually use both a Fender Twin Reverb and a '65 Fender Deluxe Reverb for recording, which both have built in tremolo, but for when I don't have built in tremolo, the SFX-07 would be one of my first choices to use.


Even though Seymour Duncan is primarily known for making guitar pick ups, it seems as if they know a great deal about what they're doing when it comes to guitar pedals as well. The price of the SFX-07 is more than what most tremolo pedals will cost, but not by much. I'd say that it is definitely worth the extra dough if you're going to be using a lot tremolo, as it really isn't very much more than some tremolo pedals out there that this is almost infinity superior than. The tap tempo alone is worth the money in my opinion. The SFX-07 is overall a great tremolo pedal from an unlikely source.

benderleben's review (This content has been automatically translated from French)" a must at this price"

Seymour Duncan SFX-07 Shape Shifter
all the tremolos are possible!
gasworks well designed and easily customizable.
any analog (except tap tempo that does not go into the sound)

missing is the expression pedal but hey I quibble!


top very simple but as the beast is very versatile settings are sensitive and need to have to identify its needs for outputting a sound demand.
notament the depth adjustment (mix) sensitive to the effect upstream (to preserve the precision tremolo I place my last chain effect even after the reverb)

very intuitive and well designed to live by example


very well done and contrary to what I read I find the well articulated and his monstrous possibility, quite flexible from vintage to modern (with my strat this is a trip back in time ...) ( although it is certain that the Empresse must be more "organic" ... for 3 times the price ...)

adapted to any style!
therefore neutral


for over 3 years and I am satisfied "job's done"

quality versatility unbeatable price /

more budget I may have enjoyed the empress tremolo (reference)

but for my purposes it suits me more amply I think the "gain" between the empress and Seymour does not justify the price difference for an amateur like me.

Eяяаtom's review (This content has been automatically translated from French)" A well thought out pedal"

Seymour Duncan SFX-07 Shape Shifter
Full features, or almost, he lacked more than output expression pedal.


Easy to use but it is sometimes difficult to find its settings


Correct sound quality, but I liked that Seymour Duncan focuses more on this point.


the +
. quite different possible settings, tap tempo

the -
. lack of heat on the sound of the tremolo sound identity
. a momentary switch instead of a 3PDT for the tap tempo

Xavman's review (This content has been automatically translated from French)

Seymour Duncan SFX-07 Shape Shifter
Analog Trmolo
non ditable
input / output jack
has noted a true-bypass and an ultra-strong metal box ...


4 knobs (depth, shape, wave and rate / ratio)
2 switches (bypass, tap rate ... very practical)
A mini switch to switch the mode rate ratio.
The ratio mode allows you to quantify the effect is very practical especially in recording.
everything is simple and intuitive as on many pedals.
English manual (US purchase on ebay) plus a few simple rglages original manufacturer-supplied


The effect of 60's surf rock tremolo tremolo to the most industrial metal, the range is wide rglage to satisfy any fans of tremolo.
For use with guitar or piano / synth or why not the song (if you want to express)


I have a few days, it satisfies me share the wealth of its offer, given the number of possible rglages.
The tap is the positive rate of the pedals, what happiness to be able to lock onto a tempo (the Zvex Tremolo Probe is the REFERENCE in CONTRL tempo of Contents for this type of effect). J'hsitais between tap tremolo line 6 and the shape shifter ...
I apprci Stereo output on the pedals (with a panorama mode that possde the line 6)
I n'aimaiz not the case of line 6, the more it seemed to offer less variation in tremolo.
I really like the pedals for the price (about 150 including shipping and taxes of USD), the ratio quality price is fair given the quality of the product.
I would do without this choice hsiter
Seymour Duncan does not make that guitar pickups they make also of quality of effects pedals sacred ...

Seymour Duncan SFX-07 Shape Shifter images

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  • Seymour Duncan SFX-07 Shape Shifter
  • Seymour Duncan SFX-07 Shape Shifter

Seymour Duncan SFX-07 Shape Shifter videos

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Other names: sfx 07 shapeshifter, sfx07shapeshifter, sfx07 shapeshifter, sfx07 shape shifter, sfx 07shape shifter

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