StewMac Two Kings Pre-Built DIY Dual Boost Overdrive

Recently, we took a look at the new lineup of pre-made pedal kit effects from our friends at StewMac, which included the Sun Fuzz, Ghost Drive Transparent Overdrive, Two Kings Dual Boost Overdrive and the Lightcycle Phasor II Optical Phaser. We’re going to take a solo look at the third pedal in the lineup today, after checking out the Sun Fuzz and Ghost Drive earlier this month. The Two Kings Pre-Built DIY Dual Boost Overdrive brings a rare, expensive and years-on-the-waitlist effects unit to ANYONE who wants to bathe in these sweet overdriven tones…

For years, players have chased a rare dual overdrive pedal—two independent channels in one box, each capable of clean boost or warm, touch-sensitive drive. Stack them together and the possibilities feel endless: subtle push, gritty crunch, or harmonically rich leads. But with boutique builders’ waitlists stretching for years and used prices climbing into the high hundreds, this tone has been out of reach for most players. You shouldn’t have to wait—or overpay—for that kind of versatility. That’s why StewMac built the Two Kings Boost: to deliver this legendary sound without the waitlist or the crazy price tag.

The Two Kings Boost gives you the tones players have chased for years—without the waitlists or inflated prices. Two channels, endless versatility: from clean boost to rich overdrive, always responsive to your touch and true to your guitar and amp. It’s the kind of pedal that doesn’t just sit on your board—it stays there.

Circuit Features:

Internal Trim Pot
Adjusts brightness of the signal.
Counterclockwise → Brighter tone
Clockwise → Darker tone

DIP Switches (one set per side)
All switches down → Clean Mode
Switches 1 & 3 up → Overdrive Mode (soft clipping)
Switches 2 & 4 up → Distortion Mode (hard clipping)
Note: More clipping = lower output volume

Front Panel Controls
Volume – Sets overall output level (CW = louder, CCW = quieter)
Drive – Controls how much the signal hits the clipping stage
Tone – Adjusts top-end brightness (CW = brighter, CCW = darker)

Specifications
Compatible with 9VDC, standard 2.1mm negative center input (no battery option). Warning: Do not exceed 9VDC.
Enclosure Size: 120.5mm × 94.5mm × 34.25mm
Bypass: True Bypass
Current Draw: 33.7mA
Input Impedance: 1MΩ
Output Impedance: 600Ω
Max Input Level: -10 dBm
Noise Floor: -72 dBm

The Two Kings Dual Boost Overdrive is now a pre-built pedal, giving you that Centaur tone without the five-figure collector’s budget, the speculative hype, or the soldering iron. Just plug in, step on it, and hear why this circuit became a legend. Be sure to visit the StewMac website for ordering, more info, and the entire new lineup of pre-built boutique effects pedals – cheers!!