With a powerfully-adjustable 3 band EQ and sweep Mid-Freq knob, Extreme Metal provides a strong low frequency and clear, transparent high frequency. Play the rhythms and leads that cut through the mix!
EHX Metal Muff Clone

Product Page

Review by reddit /guitarpedals

Demo by Taylor Danley

Demo by Juanter

Review by martinsmith99, ultimate-guitar.com

Manual

JF-17 Extreme Metal

The Little Blaster sounds dirty and mean, but never loses its clarity. It just cuts through a mix like a knife a leaves ample room for the bass player to do his job. When it comes to rock and punk rhythm work, the Little Blaster delivers.

Demo by EytschPi42

Demo by intheblues

Review by Total Guitar, musicradar.com

JF-303 Little Blaster

Its classic vintage overdrive circuit adopts 1+1 dual channel design, can be used alone or connected in series, you’ll get warm OVERDRIVE, fierce CRUNCH or vintage DISTORTION by 1+1 connected in series.

Demo by Rich. Words. Music.

Review by stephan, gearnews.de

Demo by Joyo Pedals

Official Product Video

R-20 King Of Kings

The JOYO JF-38 Roll Boost is a compact, true bypass guitar effect pedal designed to provide a clean and clear boost for your electric guitar. 

Review by Strat-Talk

Demo by Coleman's Music

Demo by PJ and the Beard

Review by Trevor Curwen, musicradar.com

JF-38 Roll Boost

The British classic rock distortion. It has great response and sustain, and the controls make precision fine-tuning a breeze.

Demo by J Batista

Review by Adam Harkus