SKU: 35307797008

Electro-Harmonix Super Synth Engine With Effects And More, 9.6DC-200 PSU Included

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Description

Electro-Harmonix Super Synth Engine With Effects And More, 9.6DC-200 PSU IncludedBuilds upon Superego Synth Engine Adds Attack, Release & Threshold Knobs Adds Internal FX Engine with 11 Effects Chorus Trem, Echo, Pitch Shifting & More 4 Freeze Modes Expression Input with Preset EXP Control Send Return Jacks for External FX Loop Send Return Jacks Double as Wet Splitter Bypass Freeze Engine in Live FX Mode Power Supply Included Designed with the most adventurous instrumentalists in mind, the Electro Harmonix Superego+ is a pedal

  • Builds upon Superego Synth Engine
  • Adds Attack, Release & Threshold Knobs
  • Adds Internal FX Engine with 11 Effects
  • Chorus/Trem, Echo, Pitch Shifting & More
  • 4 Freeze Modes
  • Expression Input with Preset EXP Control
  • Send/Return Jacks for External FX Loop
  • Send/Return Jacks Double as Wet Splitter
  • Bypass Freeze Engine in Live FX Mode
  • Power Supply Included

Designed with the most adventurous instrumentalists in mind, the Electro-Harmonix Superego+ is a pedal capable of creating a multitude of effects, including glissando, infinite sustain, pitch shifting, organ-like shimmer, and much more. It builds upon the synth-engine of its predecessor, the Superego, in several ways. The original's SPEED, GLISS, DRY, and EFFECT parameters are still on hand, but added to mix are ATTACK and RELEASE knobs, as well as a THRESHOLD parameter that allows you to control the onset of processing with your dynamics.

You�ll also note a knob giving you access to 11 onboard internal effects, including flanging, phasing, rotary, tremolo, low-pass filter, and others. Each internal effect responds, in specific ways, to corresponding RATE and DEPTH knobs. A MODE footswitch provides five different freeze settings, most which can be controlled by the BYPASS switch, as well as your favorite, previously purchased expression pedal.

In many modes, the effect section of the Superego+ operates on your �freezes��i.e., on sustained notes/chords that you�ve created by means of holding down the BYPASS switch. This way, you can strum a chord, hold down the BYPASS switch, causing it to sustain; then, an onboard effect is applied to the frozen signal as you solo over this cacophonous sound-bed with your normal, unprocessed tone.

However, LIVE EFFECTS mode will allow you to run dry sound directly through the effects engine, foregoing the freezing altogether, and giving you dramatic, immediate effects on stage. Thus, you can use the pedal similarly to Electro-Harmonix's Freeze pedals, or as a direct modulation effect.

An external effects loop can be routed into the pedal by means of 1/4" send and return jacks. You can also opt to send processed signal from the send jack to another destination, such as an amplifier, or an impedance-appropriate mixer channel. When the signal is split in this manner, your freezes and processed notes will be directed out through the send jack, while unfrozen signal will route to your main amplifier.

When you use the Superego+ with an expression pedal, you can set up presets that sweep through different settings programmed into the heel and toe positions of the expression pedal. For a deep dive into this operation, as well as the effects and controls provided by the Superego+, please peruse the features section.

Controls at a Glance
DRY Knob: This controls the volume level of the dry signal. As you turn the knob clockwise, the volume of the DRY signal increases to a maximum of +3 dB.

EFFECT Knob: This controls the volume of the processed signal. Set to its lowest value, the knob will remove the effect signal entirely. Set fully clockwise, and you�ll hear maximum effect. This control operates before the send jack in the signal chain, and can be sent to a dedicated amplifier by means of this output.

ATTACK Knob: This controls the fade-in speed of the frozen signal. When set fully counter-clockwise, the frozen signal starts immediately. As the knob is turned clockwise, the frozen signal fades in more slowly. Adjust the ATTACK knob to create swell and pad effects.

DECAY Knob: This controls the fade-out speed of the frozen signal. At minimum values, the frozen signal fades out quickly. As the knob is turned clockwise, the fade-out time increases. When set to maximum, this control ensures that the frozen signal plays indefinitely until a new freeze function is triggered.

THRESHOLD Knob: This controls how sensitive the Superego+ is to the input signal. THRESHOLD is least sensitive when set fully counter-clockwise. At this setting, the input signal has to be quite strong to trigger the effect, so it will only respond to your loudest playing. As the knob is turned clockwise, the Superego+ becomes more sensitive, and the effect becomes increasingly easier to trigger. When the knob is set to maximum volumes, even light playing will trigger the effect.

LAYER Knob: In SUSTAIN, AUTO, and LATCH modes, use the LAYER knob to set the level of previous freezes as new ones are introduced. When set fully counter-clockwise, the previously frozen signal will not be present in a new freeze. At a setting of fully clockwise, 100% of the previously frozen signal is present. The LAYER knob works in a similar fashion to the feedback knob on a delay, or the overdub parameter of a looper pedal.

GLISS Knob: This controls the speed of the glissando effect. The glissando/portamento feature glides the pitch of one frozen sound into the next. This function is suitable for adding texture and smoothness to transitions.

EFFECTS SELECTOR Knob: This selects which of the 11 effects will be applied to the frozen/processed signal when the EFFECT footswitch is engaged.

RATE Knob: This controls the rate/speed of the selected effect. For effects that do not utilize a rate control, the RATE knob will have an alternate function. To provide a handy reminder, this alternate function is printed in purple below the effect name on the EFFECTS SELECTOR knob.

DEPTH Knob: This controls the depth/amount of the selected effect. For effects that do not need a depth control, the DEPTH knob will have an alternate function printed in green below the effect on the EFFECTS SELECTOR knob.

BYPASS Footswitch: This enables or disables the Superego+ pedal. Depending on the mode, this footswitch can function as a freeze trigger, or an auto trigger enable/disable switch.

EFFECT Footswitch: This turns the internal effect section of the Superego+ on and off. In LIVE EFFECTS MODE, both the EFFECT footswitch and the BYPASS footswitch engage/bypass the Superego+.

MODE Footswitch: This cycles through the five modes indicated by the mode LEDs.

I/O Explained
INPUT and OUTPUT Jacks: These 1/4" jacks operate in a manner similar to nearly every other stompbox; your instrument (or previous effect pedal) goes into the input jack, while the output jack routes signal to the next effect, or to your amplifier.

SEND Jack: If you would like the frozen signal to go through an external effects chain, use this 1/4" jack to connect to the input of an external effect. Alternately, you can use the Send jack as a �wet-only� output. When you do so, the freeze signal is muted at the Output jack. The EFFECT knob always controls the volume at the Send jack.

RETURN Jack: If you're using an external effects pedal (or loop), plug the ultimate pedal into the Return jack provided here. The signal present at the Return jack is then mixed with the dry signal and sent to the Output jack. If no signal is received by the Output jack, the Superego+ will default to using signal carried over the Send connection as a �wet-only� output.

EXP (Expression) Jack: Connect a standard TRS expression pedal or (control voltage (CV) pedal between 0 to 5V) to the EXP input, and you'll have external control over the ATTACK, DECAY, RATE, DEPTH, THRESHOLD, LAYER, and GLISS parameters. An EXP preset can be saved for each effect setting, with the SUPEREGO+ taking a �snapshot� of all 7 knob parameters at the heel-down position, followed by another snapshot at the toe-down position. Thus, the expression pedal can sweep between the two settings. You can also use an expression pedal or other CV source without programming a preset. Each internal effect has a default expression control range that is set by the factory, or after erasing your previously loaded, expression-pedal preset.

EXT (External Control) Jack: Use a TRS three-button external/auxiliary switch (such as the DigiTech FS3X, available separately) to remotely control the Superego+�s footswitches.

Effects at a Glance
DETUNE: This effect produces a shimmery pitch detune. An expression pedal will control the pitch.

ECHO: This provides pristine repeats. An expression pedal can control delay time.

DELAY: This gives you warm, analog-sounding repeats with modulation. Feedback has been preset, while an expression pedal can control delay time.

FLANGE: This gives you an Electric Mistress-style flanger with filter matrix, rate, and feedback control. DEPTH controls the feedback amount. The RATE knob controls both the filter matrix and the flange rate. With the RATE knob fully counter-clockwise, the filter matrix is at minimum. The filter range increases to its maximum setting at about 11 o�clock on the RATE knob. As you turn RATE past 11 o�clock, the flange will begin to oscillate very slowly; modulation speed increases to maximum when RATE is set fully clockwise. An expression pedal can control the RATE.

PHASE: This effect offers Small Stone-style phase shifting. An expression pedal can control the RATE.

MOD: Here you�ll find pitch-based vibrato or chorus. RATE controls speed of the chorus. DEPTH is 0 at noon. Noon to fully counter-clockwise controls pitch-vibrato depth, while noon to clockwise controls chorus depth. An expression pedal can control the RATE.

ROTARY: Here you can engage an organ-like rotary sound. Use the DEPTH knob to control tweeter/horn balance. Turning the DEPTH knob counter-clockwise adds more horn and reduces the tweeter. Turning the DEPTH Knob clockwise adds more tweeter and reduces the horn. An expression pedal can control the RATE.

TREM 1: This is your subtle sine-wave tremolo, with an expression pedal controlling RATE.

TREM 2: Here is your dramatic, start-and-stop square-wave tremolo. As above, an expression pedal can control RATE.

PITCH: This effect provides pitch shifting. The RATE knob at noon is unity. Turning the knob clockwise steps up the major scale (also including minor 3rd and minor 7th) to +1 octave. Conversely, moving the RATE knob counter-clockwise steps the pitch down to -1 octave. An expression pedal can control a +1 octave whammy-style effect over the unity-affected signal.

FILTER: This is a resonant low-pass filter. RATE controls frequency of the cut, while DEPTH controls resonance. An expression pedal can control frequency externally.

Modes Explained
MOMENT mode freezes your signal the moment you press and hold the BYPASS footswitch, and maintains the freeze until you let go.

SUSTAIN mode works similar to a piano's sustain pedal, freezing the signal�and all future notes�from the moment you depress the footswitch to the moment you release it.

AUTO mode automatically freezes notes when the pedal is on; holding down the BYPASS footswitch in this mode will prevent new signals from being frozen and processed, allowing you to lay unprocessed solos against a frozen backdrop.

LATCH mode freezes your signal the moment you hold down BYPASS, but continues to generate frozen signal even after you release the footswitch; double-tapping on the BYPASS footswitch in this mode will initiate a fade-out of the frozen signal.

LIVE EFFECTS mode disables the ability to freeze, passing your dry signal through the internal effects engine. In other words, this mode lets you apply effects to your direct signal, as you would with any other stompbox.

Electro-Harmonix Superego Plus specs

Controls DRY Knob
EFFECT Knob
ATTACK Knob
DECAY Knob
RATE Knob
DEPTH Knob
THRESHOLD Knob
LAYER Knob
GLISS Knob
EFFECT SELECTOR Knob
MODE Footswitch
EFFECT Footswitch
BYPASS Footswitch
I/O 1 x 1/4" Instrument input, phone type
1 x 1/4" Instrument output, phone type
1 x 1/4" Return input, phone type
1 x 1/4" Send output, phone type
1 x 1/4" EXP input, TRS, phone type
1 x 1/4" EXT input, TRS, phone type
Input Impedance 2.2 MOhms (Input and Return)
Output Impedance 500 Ohms (Output and Send)
Bypass Buffered
Power Supply EHX 9.6 VDC 200 mA AC Adapter, included
Dimensions and Weight Not specified by manufacturer
In the Box
Electro-Harmonix Superego+ Freeze, Synth Engine & Multi-Effects Pedal with Power Supply
  • Power Supply
  • Limited 1-Year Warranty

All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 35307797008

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Andre Glover
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★★★★★ 5
Love it
Size: Pair
These are nice for any audiophile. They look and sound amazing.
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Reviewed in the United States on May 14, 2026
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Lee W. Sellman
Draper, US
★★★★★ 5
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Great things sometimes come in little packages. Powerhouse sound with virtually no input at all. Tight, crisp, and well-made as usual from Klipsch. If you are looking for a powerhouse monitor these are what you want.
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Reviewed in the United States on April 22, 2026
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YALE70
Houston, US
★★★★★ 4
Great starter speakers - for the right price.
Size: Pair
A good all-around pair of starter speakers if you're planning on using them as standalones. These will have zero trouble filling a small to medium sized space with rich and detailed sound at low to mid volumes. The bass is adequate for their size. They're not going to knock your socks off on more thumpy genres. I would imagine pairing them with a subwoofer would make quite the difference but for rock and some synth pop, they're pretty sweet. Plus the copper woofers look very striking without the faceplates. That said, I say these are best suited at low to mid volumes because cranked, the higher frequencies can be awfully fatiguing coming out of these speakers. I would not pay anywhere close to the $349 MSRP for these (you can probably find a pair of far superior RP-600Ms for around that price nowadays). Around $150 seems like a sweet spot for the R-51Ms, but the Sony SSCS5s and Fluance Signature bookshelfs are very comparable, if not better sounding for around the same price. Still, these will probably more than satisfactory if you're not expecting to be blown away by them. UPDATE 5/20/25: Can confirm that the subwoofer made a big difference. I was going to retire these since I replaced them with some bigger floor speakers on my main setup but I decided to try them out in place of the factory speakers on the Klipsch ProMedia 2.1 I have hooked up to my computer. Not only does the onboard amp seem to drive them okay at not-insane levels of volume - they sound really sweet paired with the 6.5-inch subwoofer. While I won't change my rating, I do highly recommend getting a sub along with these speakers.
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Reviewed in the United States on April 11, 2025
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Ramona O.
Carnegie, US
★★★★★ 5
Great speakers, rich full sound
Size: Pair
These are really great speakers. I got them to go with my husband's new record player for Christmas. These really sound fantastic. A rich range, with a nice bass that's not too much. They were easy to connect to the player. I like a rich sound better then bright (I think if it's too bright it doesn't have enough bass), and these definitely fit the bill. I got these on a black Friday deal which was even better. They are a good value for the quality.
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Reviewed in the United States on January 9, 2026
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Q W Lott
Carnegie, US
★★★★★ 5
The new amp/speaker configuration made a very noticeably positive difference.
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I bought a Denton amp / Klipsch 7 speaker bundle for Christmas last year. It sounded impressive. For this year, I recently replace the Denon AVR-S970H, a 5.2.2 POS-Amp that quit after less than a year. Then I also added a 70” TV and a set of R-51M’s on the sides. I could never hear this amp driving the Dolby Atmos speakers on top of the R-625FA towers, so I decided that back speakers would be more beneficial to this 7-channel system. I’d been using the R-41M’s that came in the bundle as side surround speakers, but I was thinking that they would be more suited for use in back. So I replaced them with a new set of R-51M’s that I thought would be better surround sides because of their fuller stronger sound. As of now, at the front of this theater system is an Onkyo TX-RZ 820 AVR amp, a 70 inch LED 4K smart TV, a set of Klipsch R-625FA towers, an R-52C Center Channel Speaker, and two R-12SW Subwoofers. For the surround sides is the newly purchased set of R-51M’s on stands, and mounted on the back-wall is the set of R-41M’s, using BS-218pro Wall Mounts. For good reason, this is a very powerful amp driving a complete set of purely Klipsch speakers. I built this THX 7.2.0 surround sound system to go in my wife’s 11’ X 12’ privacy room, specifically because she is hard of hearing. She said, that with the new additions, the sound is much cleaner, stronger, the 3D surround effect is more noticeable, and the vocals are easier for her to understand. I get to use it sometimes when she’s not at home. Thunder in movies sounds as crisp sharp and loud as real thunder. All around, the system is very realistic sounding. And it can play music, shaking the house at live levels. At present, my wife and I are extremely happy with this system. It sounds as good as it looks. The Klipsch speakers & Onkyo amp configuration makes a very noticeably positive difference.
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Reviewed in the United States on January 5, 2026

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