Used Custom Audio BOOST LINE DRIVER Multi-FX Pedal

Custom Audio Electronics Boost/Line Driver (MC-401)

"Pure Signal, Maximum Clarity"

Built for the World’s Best Guitar Rigs

The MC-401 Boost/Line Driver is a collaboration between MXR and Custom Audio Electronics founder Bob Bradshaw, designed to solve signal loss and mismatched levels in complex pedal chains. With up to 20dB of ultra-clean boost, it’s perfect for driving long cable runs, enhancing dynamics, or pushing your amp into natural overdrive. Its transparent tone and rugged build make it a staple in pro touring rigs.

Artists Who’ve Used CAE Pedals

Bob Bradshaw’s designs have powered the rigs of guitar icons like Steve Lukather, Eddie Van Halen, and The Edge. The MC-401, in particular, has found its way into countless studio and stage setups where signal integrity is non-negotiable.

Highlights

• Up to 20dB of clean boost
• Transparent tone with minimal coloration
• Ideal for solo boosts, signal conditioning, or driving effects
• True bypass switching
• Compact, pedalboard-friendly design

Specifications

• Circuit: Analog
• Controls: Single Boost knob
• Power: 9V battery or adapter
• Current Draw: ~6mA
• Bypass: True bypass
• Dimensions: Standard MXR enclosure
• Finish: Black with CAE logo

Professional Tone Starts with a Clean Signal

Whether you're building a studio-grade pedalboard or just need a reliable boost, the MC-401 delivers uncompromising clarity and headroom. Buy today and experience the clean signal!