The Echo Fix EF-P3 Chorus Vibrato is an analog BBD chorus pedal with a vibrato mode, made by the Australian company Echo Fix12. BBD stands for bucket brigade device, the analog delay chip that classic chorus and flanger circuits were built around: the pedal delays your signal slightly and wobbles that delay with a low frequency oscillator, which is what produces the chorus effect. Echo Fix positions it as a premium effect alongside its EF-X2 tape echo and EF-P2 spring reverb1.
Where a basic chorus gives you two or three knobs, the EF-P3 extends each control's range for what the maker calls sonic flexibility, from subtle pitch glides to fast Leslie-style wobbles1. Delicious Audio's Paolo De Gregorio described it as "a rather standard chorus/vibrato built with the best possible components," with controls that have extended range and increased internal voltage for extra dynamic range2.
The controls: Rate, Depth, Resonance and Wave Shape
The EF-P3 has four knobs, and Echo Fix says each has been extended in range compared with a conventional chorus1.
| Control | What it does |
|---|---|
| Rate | Sets the speed of the modulation1 |
| Depth | Sets how deep the modulation goes1 |
| Resonance | Increases the intensity of the effect2 |
| Wave Shape | Shapes the LFO wave from Sine to Triangle2 |
The Wave Shape knob is the one that works differently from a standard chorus. As De Gregorio explained, "The Waveshape knob is the only one that needs a little explanation: it shapes the LFO wave from Sine to Triangle"2. For a player, that means a choice in the character of the wobble: a sine wave sweeps smoothly, while a triangle wave moves more linearly between its extremes, which changes how the pitch bend feels at the same Rate and Depth settings.
Pedal of the Day's reviewer, writing in January 2024, called it "a simple control section, but one that's filled with gorgeous, vintage-tinged sonic options"4.
Vibrato mode and switching
The pedal has two footswitches. One handles bypass, and the other is a Direct Mute footswitch for vibrato mode1. As Delicious Audio describes it, that second switch "removes the clean signal from the path, in essence switching from Chorus (direct On) to Vibrato (direct Off, i.e. full wet)"2.
In other words, chorus is the modulated signal blended with your untouched dry signal, and vibrato is the modulated signal on its own, with no dry signal to anchor the pitch. That is the same distinction players draw between a chorus with the blend pulled back and a true pitch-wobble effect, and here it is one footswitch away rather than a knob to re-dial.
Both footswitches use soft momentary switching, which Pedal of the Day listed as noiseless bypass and Direct Mute switching4.
Power and practical details
The EF-P3 runs on 9V DC with a center negative plug and draws a minimum of 200mA1. That current draw is worth noting when planning a pedalboard: it is higher than many compact analog pedals, so it needs a supply tap that can deliver it, and it rules out a battery.
Other details from Echo Fix:
- Input impedance 1MΩ, output impedance 1KΩ1
- Dimensions 100mm x 130mm x 60mm (3.93" x 5.11" x 2.36")1
- 12 months limited warranty1
- Ships worldwide in 1 business day from purchase date1
Price and buying from Australia
Gearnews listed the EF-P3 at $272.00 in March 20243. Because Echo Fix sells direct from Australia, the tariff question matters to US buyers, and the maker addresses it directly: for USA customers, Echo Fix covers tariff and custom charges via its express courier, and the checkout price is all inclusive1.
What reviewers said
Published coverage has been positive. Pedal of the Day found that "from subtle pitch glides to fast Leslie-style wobbles, the wide range of controls makes this pedal extremely versatile and creative"4. Delicious Audio framed it as a straightforward chorus/vibrato circuit executed with high-grade components and an extended control range2.
Videos
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R.J. Ronquillo
Mark Johnston
Questions
Is the Echo Fix EF-P3 analog?
Yes. Echo Fix describes the EF-P3 as an analog BBD chorus pedal, meaning the modulation is produced by a bucket brigade delay chip rather than digital processing. Delicious Audio likewise calls it an analog BBD-based chorus built with what it describes as the best possible components.
How do you get vibrato on the Echo Fix EF-P3?
The pedal has a Direct Mute footswitch dedicated to vibrato mode. Pressing it removes the clean signal from the path, so instead of chorus, where the direct signal stays on, you get vibrato with the direct signal off, which is a full wet effect.
What does the Resonance knob do on the EF-P3?
According to Delicious Audio, the Resonance control increases the intensity of the effect. It is one of four controls, alongside Rate, Depth and Wave Shape, and Echo Fix says each control has been extended in range for sonic flexibility.
How much power does the Echo Fix EF-P3 need?
The EF-P3 runs on 9V DC with a center negative plug and draws a minimum of 200mA. That current draw is on the high side for an analog pedal, so it is worth planning for on a shared power supply.
Does Echo Fix charge US tariffs on the EF-P3?
No. Echo Fix states that for USA customers it covers tariff and custom charges via its express courier, and that the checkout price is all inclusive. Gearnews listed the price at $272.00 in March 2024.
Sources (4)
- EF-P3 Chorus Vibrato Pedal, Echo Fix
- Echo Fix EF-P3 Chorus, Delicious Audio, 2025-06-30
- Classic Gear: The Roland Space Echo RE-201, gearnews.com, 2024-03-11
- Echo Fix EF-P3 Chorus Vibrato, Pedal of the Day, 2024-01-17
