Sonicake FlipWah Review & Guide A full-size combo pedal for classic wah and active volume control


Figure 1. Sonicake FlipWah product




Key Specifications

Item

Official specification

Type

Wah / Active Volume combo pedal

Mode selection

Footswitch with dual-color LED

Wah control

Q knob between INPUT and power: resonance and bandwidth

Connections

INPUT, OUTPUT and THRU

Power

DC 9V, 5.5 × 2.1mm, center negative / 22mA

Housing

Full zinc alloy

Size / weight

148.5 × 65.5 × 61mm / 910g

 

1. What Is the FlipWah?

The Sonicake FlipWah (QEP-10) combines a classic wah effect and an active volume pedal in one full-size housing. A footswitch selects Wah or Volume mode, while a dual-color LED shows the active function. It is designed for players who want to save one pedal position without giving up the longer treadle movement of a full-size unit.

2. Main Functions and Controls

In Wah mode, treadle movement sweeps the filter center frequency to create the familiar vocal-like wah sound. The small control located between the INPUT jack and the 9V DC power jack is the Q knob. It adjusts the resonance emphasis and bandwidth of the wah filter. A higher Q setting gives a narrower, more pronounced peak for a sharper and more articulate wah voice; a lower setting produces a broader, smoother sweep that blends more naturally into rhythm playing. Because the knob has no calibrated scale, begin near the middle and adjust it gradually by ear. The Q knob shapes Wah mode; it does not set the minimum or maximum level of Active Volume mode. Active Volume mode controls output level for swells, muting and level changes. Sonicake specifies blue for Active Volume mode and green for Wah mode.

Figure 2. Q knob between the INPUT jack and the 9V DC power jack

How It Differs from a Conventional Wah Pedal

In this comparison, “conventional wah” means a traditional single-function model without a separate volume mode or an external Q control. Premium wah pedals may add Q, range and boost controls, so these distinctions do not apply to every wah on the market.

Comparison

FlipWah

Typical traditional wah

Core function

Footswitch selects wah or active volume

Primarily a dedicated wah

Tone shaping

External Q knob adjusts sharp or smooth response

Basic models often use a fixed factory voice

Signal routing

Separate THRU jack provides a direct signal

Usually INPUT and OUTPUT only

Status feedback

Blue and green LEDs identify the current mode

Often no mode LED or only a basic on indicator

Operation

One treadle alternates between two functions

No function-selection step

Main advantage

Can replace two pedals and simplify wiring

Simple, focused wah operation

Main limitation

Wah and volume are not independently simultaneous

A separate volume pedal is required

 

3. Connection and Basic Operation

Lower the amplifier volume and switch off power before wiring. Connect the guitar or preceding pedal to INPUT, then connect OUTPUT to the next pedal or amplifier. The THRU jack can feed a tuner or another device that needs the direct signal. Power the unit with a 9V center-negative adapter or an internal 9V battery, select a mode with the footswitch and confirm the LED color. Start Wah setup from heel-down and adjust Q; in Volume mode, check the minimum, maximum and swell travel.

Step-by-Step Setup

·    1) Mute the amplifier before wiring

·    2) Connect INPUT and OUTPUT

·    3) Connect a 9V center-negative supply

·    4) Select a mode with the footswitch

·    5) Confirm the LED and adjust Q and treadle range

4. Strengths

The two-in-one format reduces cabling compared with separate wah and active-volume pedals. Its full-size treadle supports finer foot movement and provides a broad non-slip surface. The Q control adds useful tonal flexibility, while the separate THRU jack makes tuner routing easier. A full zinc-alloy housing and approximately 910g weight also help the pedal stay planted during performance.

Figure 3. Full-size treadle and zinc-alloy housing

5. Limitations and Buying Checks

The two functions are selectable rather than simultaneously independent: the footswitch changes the treadle between Wah and Volume. The 910g full-size design may be heavy for an ultra-light board. The switch under the front of the treadle can require a short adjustment period. Because the volume circuit is active, the pedal needs power, and an incorrect power supply may damage it.

6. Who Is It For?

FlipWah suits guitarists who alternate between traditional wah tones and volume swells, players who dislike the short travel of mini wah pedals, and boards that benefit from a tuner THRU output. Separate wah, volume and expression pedals are a better choice when both functions must remain independently available or when expression-input control is essential.

7. Practical Tips and Safety

Fuzz circuits can react very differently before or after a wah, so test both orders. Wah before drive often sounds more defined; after drive it can become more dramatic. Volume before drive changes input gain as well as level, while volume after drive behaves more like master level control. Mute the amplifier before connecting cables, use only the specified center-negative supply and remove the 9V battery for long storage.

FAQ

Q. Is FlipWah the same as FlipVol?

No. FlipWah is a powered Wah/Active Volume combo; FlipVol is a passive Volume/Expression product.

Q. Can wah and volume be used simultaneously?

The treadle is switched between the two modes, so it does not provide two independently operated functions at the same time.

Q. Can it be used with bass?

It can pass a bass signal, but the wah response is voiced around a classic guitar-wah concept. Test it with the intended bass range before buying.

Conclusion

Sonicake FlipWah is a practical fit for players who use both wah and volume occasionally but want a simpler pedalboard. The full-size feel, adjustable Q, clear LED status and THRU output improve usability. Satisfaction depends on understanding that the functions are switched rather than independently simultaneous and that the active circuit requires 9V power.

Sources

Sonicake official FlipWah product page — https://www.sonicake.com/products/flipwah

Dunlop official Cry Baby guide and Classic Wah page — https://lifestyle.jimdunlop.com/find-your-cry-baby-wah/ · https://www.jimdunlop.com/cry-baby-classic-wah/

Sonicake FlipWah QEP-10 official images and specifications, accessed 2026-09-02

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