MXR MC402 Custom Audio Electronics Boost/Overdrive Pedal
 
Dual-function boost and overdrive pedal with independent clean boost, dynamic drive response, and classic CAE/MXR design
The MXR MC402 Boost/Overdrive was developed under the Custom Audio Electronics name, associated with Bob Bradshaw’s pro-level switching and guitar rig systems. It combines two useful gain tools in one pedal: a clean boost section for pushing amps, solos, or other pedals, and an overdrive section for adding warmth, sustain, punch, and gain.
The boost side provides up to +20 dB of clean boost, making it useful as a volume lift, line driver, buffer-style signal helper, or front-end amp pusher. The overdrive side ranges from mild blues-style breakup to heavier crunch, with Output, Tone, and Gain controls for shaping level, brightness, and saturation. The two-footswitch layout makes it easy to use the boost and overdrive independently or together.
This is a practical choice for players who want one sturdy pedal to cover clean boost, always-on drive, lead boost, amp push, classic rock gain, blues overdrive, and heavier rhythm crunch.
 
Condition:
Good used condition with visible cosmetic wear from normal pedalboard use. The casing shows scuffs, scratches, finish wear, and marks around the face, sides, footswitches, and bottom plate. The underside has adhesive/Velcro residue from previous mounting.
No box, power supply, battery, cables, or paperwork included. Pedal only.
 
Includes:
MXR MC402 CAE Boost/Overdrive pedal
Not Included: Original box, power supply, 9V battery, instrument cables, paperwork, or additional accessories
 
Key Details:
Brand: MXR / Custom Audio Electronics
Model: MC402 CAE Boost/Overdrive
Effect Type: Boost / Overdrive
Controls: Boost, Output, Tone, Gain
Footswitches: Boost and Overdrive
Boost Range: Up to +20 dB
Power: 9V battery or 9V DC adapter
Bypass: True hardwire bypass
Current Draw: Less than 5.5 mA
Made In: USA
Status: Legacy / no longer in production
 
Key Features:
Two Pedals in One: Combines a clean boost and overdrive section in a single MXR-sized enclosure.
Independent Clean Boost: The boost side can be used alone to raise volume, push an amp, tighten a signal chain, or lift solos.
Dynamic Overdrive Section: Designed to respond well to picking attack and guitar volume changes, from light breakup to stronger crunch.
Stackable Gain Layout: The boost and overdrive can be used separately or together for extra push and sustain.
Simple Stage-Friendly Controls: Dedicated Boost, Output, Tone, and Gain knobs keep the pedal easy to adjust quickly.
Pro-Rig CAE Design: Part of the MXR Custom Audio Electronics line, aimed at players who want practical, reliable gain tools for live or studio rigs.
 
Frequently Asked Questions:
Q: Is this only a boost pedal?
No. It has both a clean boost section and an overdrive section.
Q: Can the boost and overdrive be used separately?
Yes. Each side has its own footswitch.
Q: Does it come with a power supply?
No. Pedal only. Power supply and 9V battery are not included.
Q: What condition is it in?
Good used condition with visible cosmetic wear, scuffs, finish marks, and adhesive residue on the bottom.
Q: What style of music is it best for?
Blues, rock, classic rock, hard rock, worship, session work, lead boost, amp pushing, and general pedalboard gain stacking.