Cornerstone Colosseum Dual Overdrive Pedal

A community-designed pedal blending Blues Breaker and Klon circuits.

The Colosseum merges two legendary circuits—the Blues Breaker and Klon—into a versatile dual-drive pedal. The BB side eliminates clipping diodes for enhanced clarity, while the Klon side introduces a Clip Blender, allowing you to mix germanium and silicon diodes for expanded tonal flexibility.

Special Features:

Blues Breaker Circuit: No clipping diodes for increased output and clarity.

Klon Circuit with Clip Blender: Blend between germanium and silicon diode clipping.

Clean Control: Adds dry signal for greater tonal versatility.

Order Toggle: Switches the routing of the two drive circuits.

Looper-Friendly I/O: Independent rear jacks for flexible integration.

Specifications:

• Circuit Type: Analog

• Controls: Volume, Gain, Tone, Clean Blend, Clip Blender

• Switches: Order Toggle

• Bypass Type: True Bypass

• Power Requirements: 9V DC, 150mA

• Dimensions: 4.7” x 3.7” x 1.66” (119mm x 94mm x 42mm)