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Product Details
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RoShi Pedal's first wah pedal, the "MELLOW WAH," is now in stock! Comes with a collectible card!

*Please note that we only have a limited supply, so please forgive us if it sells out.

This is a special custom wah pedal using the VOX V847-A housing. The sound is truly mellow. Its super-multi-purpose features emphasize practicality, allowing you to adjust input gain, bass volume, and Q. Highly recommended for those looking for real-world use!

(From the manufacturer's website)

An extension of your fingertips, coloring the space.

The MELLOW WAH was designed as a tool to express the player's emotions more delicately and three-dimensionally. Rather than a powerful weapon that asserts itself with drastic sound changes, it aims to directly reflect the performer's feelings in the sound, like a choking effect. It's an envelope-like wah that controls the "ambience" rather than the tone. It delivers a thicker, mellower sound with less distortion than a typical wah pedal.

Not only is it capable of delicate expression in guitar solos, but it also maintains the bass definition and chord transitions, providing a "wrap-around" feel never before seen in a wah pedal.

Circuit Approach

From here on, things get a little more nerdy. Only those who enjoy it are welcome. So, I'll explain it quickly (lol). In addition to the classic inductor-based wah circuit, there are also types that use op-amps. The op-amp approach is far superior in terms of product stability (individual differences) and cost. Initially, we considered an op-amp approach for the mellow wah, as we were aiming for a low-distortion sound. However, we ultimately decided on a circuit using an inductor. While this may sound vague, we felt that the inductor's sound blended more musically and the transitions when the pedal was depressed. We chose an out-buffer for two reasons: "to facilitate matching with the next device" and "to avoid phase inversion." This makes it much easier to implement when using a wah in a real-world situation.

A MOD Designed for Practical Use

- The chassis is based on the VOX V847
- Added three controls: GAIN, BASS, and DEEP
- Added an output buffer
- Added an indicator (LED)
- Through bypass

・Side Knobs
- GAIN: Adjusts input gain. Adjusts volume, distortion, and matching with the equipment connected before the WAH.
- BASS: Adjusts the amount of bass.
- DEEP: Adjusts the amount of Q change.

- Transistor: BC108
Also used in SMUG FACE. This selection prioritized brilliant high frequencies over availability.
- Main board: New original board

※Includes a collectible card now! "Seikatsu-san," known for his popular illustrations of girls holding guitars, has created the image character for MELLOW WAH. Her name is "Mellow Girl"!

MADE IN OKINAWA, JAPAN

Year: 2026

Accessories: Box, card

Contact: Sano

*The warranty period is one month from the date of purchase.
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Please note that all items are for sale in our Tokyo store.
There is a chance they might be sold out. All items are shipped tracked and insured. All import duties or customs fees are the buyers responsibility - please be aware of the requirements for your country. If you have any questions please ask.

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ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
Brand
  • RoShi Pedals
Model
  • MELLOW WAH (NEW) w/Collection Card
Categories
Year
  • 2026

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TC GAKKI

Shinjuku-Ku, Japan
Joined Reverb:2018

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