Cornerstone Colosseum

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Cornerstone’s take on the Blues Breaker and Klon.


So, What is it?
It is a dual overdrive pedal based on my interpretation of the Blues Breaker and Klon circuits. While I used the original pedals to have an accurate sound reference (even an original Klon), the end result of Colosseum is a unique pedal.

The Blues Breaker circuit on another level:
On the BB side there is no clipping diodes: forget about the common “issues” that affect a classic BB, such as low volume and dark tone. Removing the clipping diodes will solve them.
I also added our “signature” Clean control taken from the Gladio, to add the clean sound on top of the overdriven signal for more tonal versatility.

The new Klon’s magic:
The Klon side stayed pretty much the same, except for one important detail: the clip blender.
We all know that the Klon has built quite a reputation around two “mythical” 1N34A Germanium diodes. We are still using them, measuring each one of them and picking the ones with the correct value of forward voltage, but… with the addition of a pair of hand selected silicon diodes. With this blend feature you have a wide range of tonal flexibility, an entirely new flavor of Klon at your feet, all while still being able to harness the sound of the original.

Looper lovers unite!
At the back you have 4 jacks to connect each side of the pedal with your favorite looper. You can use the sides independently or put any other pedal in between.

Anything else?
A little toggle switch will change the order of the two channels very easily for a lot of tone variations!

More Information
Manufacturer Cornerstone
Condition New
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