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LEVEL – Controls the output level.  

TONE – Allows specific adjustment of high-end/treble frequencies. 
Turn clockwise to increase high/treble frequencies and counterclockwise to 
decrease high/treble frequencies.

DISTORTION – Adjusts the distortion output. Turn clockwise to increase the 
amount of distortion. As it is increased, the signal becomes louder, thicker, 
and more distorted. Turn counterclockwise to decrease the amount of 
distortion.    

Si/LED KNOB – Blend between Silicon and LED clipping. When the knob 
is set to the left, the distorted signal will be using Silicon clipping diodes 
adding in a high amount of compression. Rotating the knob to the right 
will bring in LED clipping and a smaller amount of compression. Putting the 
knob at noon will blend between the two using different ratios of the Silicon 
and LED clipping diodes for more complex clipping sounds.

Note: Since the Si/LED knob is changing the internal gain and clipping style, 
the other controls will behave slightly differently as well. You will need to 
use the volume knob to adjust the overall output up or down depending on 
where you have the knob set.

GOT THAT RHYTHM

PUNK ENOUGH

Tele, Single coils, neck position.

SG, Humbuckers, bridge position

vol

vol

tone

tone

distortion

distortion

The Iron Horse is our take on a classic 
distortion circuit that’s thick, punchy, 
riffy, and rowdy. With the help of the 
Si/LED knob and wide range of the 
distortion knob, this true bypass, high-
gain behemoth can be finely tuned for 
clear overdriven sounds or let the reigns 

loose for a full-on distorted onslaught.  

Top mount jacks with soft switch 
bypassing and art by David Hüttner 
complete the package for a pedal board-

ready distortion machine.

Need a place to start?

Here’s a few settings we like:

SHREDDY MCSHRED

LP, P90s, bridge position.

vol

tone

distortion

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