Based on Electro-Harmonix Big Muff PI circuit  

Product Page

Review by reddit /guitarpedals

Demo by Budget Pedal Chap

Demo by Pedal Experiments

Big Fuzz

Headpbone Amplifier based on MXR Headphone Amplifier

Official Website

Demo by northtownsound

AMP Headphone

Review by gigs and guitars.com

Demo by AstralToneworx

Demo by guitarist will lane

Golden Horse Overdrive

Demo by Jp Seong

Demo by ChoptonesOfficial

Crazy Tone Distortion

GREEN DRIVE BJF DESIGN HIGH HEADROOM OVERDRIVE WITH ADJUSTABLE LOW/MID EQ BALANCE.
Premium quality classic blues/rock pedal that works very well with complex overdriven amp sound.
It’s a low compression, high headroom overdrive with high output, and it has a Body knob for adjusting low-mid content and treble.

The pedal was made to be a stackable overdrive that could go anywhere in the pedal chain and the compression normally associated with this type of circuit is reduced same as several distortion mechanisms.

Demo by Ryan Lutton