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

Utility Pedals

Utility pedals solve signal-path tasks rather than imposing one recognisable effect. Buffers restore level and high-frequency response lost through cable capacitance, selectors route between instruments or amplifiers, summing boxes combine paths, and isolators interrupt hum-producing ground loops. Impedance, phase, transformer isolation, active or passive circuitry and switching method determine whether the routing remains quiet and transparent.