Brand

Joyo

JOYO Technology is a Shenzhen music-gear company whose range goes well beyond stompboxes. Its official catalogue covers guitar and bass amplifiers, acoustic and busking amps, effects, power supplies, interfaces, wireless systems and accessories. JOYO also says it develops acoustic-core technology and has applied for utility patents. JustPedals listings include the JF-21 Splinter distortion and JF-319 Green Legend overdrive, alongside mini amps and power adapters. That breadth matters when comparing products under the JOYO name: some are effects, while others support the rest of a guitar or bass rig.

Category

Compressor Pedals

Compression reduces the difference between louder and quieter parts of the signal. It can restrain peaks, lift decaying notes and make picking feel more even, but strong settings also change the attack and add audible sustain or pumping. Threshold, ratio, attack, release and blend determine when gain reduction begins, how firmly it acts and how much natural transient detail remains.