The RMC9-Bass Eqwahlyzer is a bass wah pedal with a built-in five-band graphic equalizer, developed and built by Geoffrey Teese under his Real McCoy Custom brand. The maker describes it as "a dedicated bass wah with the wah envelope extending down to 100Hz with the addition of 5 bands of +/- 15db equalization"1. In other words, the wah is voiced for bass, reaching frequencies a guitar wah never touches, and the EQ lets a player shape the swept tone further.
What it does
The wah envelope extends down below 100Hz, which is the point of a bass-specific wah: the sweep follows the low fundamentals of a bass rather than skipping past them. On top of that sits a five-band graphic equalizer offering plus or minus 15 dB per band, with center-detent sliders mounted on the front slope of the case2.
The EQ is not a separate effect. As the maker puts it, "The EQ is within the wah circuit, only available when the wah is turned on, and then only if you want the EQ to be on"2. A player can engage the wah alone, or wah plus EQ, but the sliders do nothing as a standalone equalizer.
A small toggle switch located under the rocker changes the overall resonance of the wah effect from normal to enhanced, giving two levels of how pronounced the wah peak sounds2.
Controls at a glance
| Control | What it does |
|---|---|
| Rocker pedal | Standard wah rocking action, voiced for bass with the envelope extending below 100Hz2 |
| 5-band EQ sliders | Plus or minus 15 dB per band, center-detent, on the front slope of the case; active only when the wah is on2 |
| Resonance toggle | Under the rocker; switches the wah resonance from normal to enhanced2 |
Power and practical notes
The RMC9 runs on a 9VDC AC regulated Class II adapter with a 5.5/2.1mm coax plug with a negative center post, and 20mA to 200mA max current output on the adapter side. Current draw of the pedal itself is listed at under 10 mA2.
The RMC9 is listed as sold out and no longer in production, so it turns up only on the used market. The maker's buying guide still describes it as its dedicated bass wah1.
The pedal includes licensed fuzz-friendly technology alongside true-bypass switching, which matters for bass players running fuzz or distortion before or after the wah, where some wah circuits interact badly2.
Build
The RMC9 is housed in an extended wah shell with a silk-screened bottom plate, a multi-sparkle universal black finish, and a black footpad on top2.
Questions
Is the RMC9 Bass Eqwahlyzer still in production?
No. Real McCoy Custom lists the RMC9-Bass Eqwahlyzer as sold out and no longer in production. The pedal was developed and built by Geoffrey Teese, and the maker covered it with a limited one year warranty during its run. Players looking for a Real McCoy Custom wah today would need to find a used unit, since the maker's own product page marks the RMC9 as discontinued.
Is the RMC9 an analog pedal?
Yes. The maker states plainly that the RMC9 is all analog. It is a bass wah pedal with a five-band graphic equalizer built into the wah circuit, and it uses true-bypass switching with licensed fuzz-friendly technology so it can sit on a board alongside fuzz pedals without the problems some wahs have with them.
How low does the RMC9 wah sweep go?
Real McCoy Custom describes the RMC9 as a dedicated bass wah whose wah envelope extends down to 100Hz, and the product page says the envelope extends down below 100Hz. That low reach is what sets it apart from guitar wah pedals, which are voiced higher and can leave the low end of a bass sounding thin.
Is the RMC9 true bypass?
Yes. The RMC9 includes true-bypass switching along with licensed fuzz-friendly technology. That combination is aimed at players who run the pedal with fuzz or distortion, where some wah circuits cause tone loss or interaction problems when bypassed or engaged.
Can the equalizer be used on its own without the wah?
No. The five-band graphic equalizer sits within the wah circuit and is only available when the wah is turned on, and then only if you want the EQ to be on. So the EQ cannot run as a standalone equalizer with the wah effect switched off; it is an extension of the wah, not a separate block.
Sources (2)
- WHICH WAH?, Real McCoy Custom (realmccoycustom.com), 2024
- RMC9-Bass Eqwahlyzer, Real McCoy Custom (realmccoycustom.com), 2022






