- California Sound, simulates Mesa boogie MK II amplifier, and can get natural permeable original sound & very full principal tone.
- Material: Aluminium alloy with stoving vanish.
- Dimension: 11.80 (L) * 8.70 (W) * 3.80 (H) cm
- (2011-04-17) JOYO California Sound JF-15 Mesa Boogie Sound by MrSanSystem
- (2012-01-05) JOYO.JF-15 by Joyo
- (2012-01-14) Joyo - California Sound - Mesa Amp Simulating Pedal - JF15 by cranbournemusic
- (2012-06-27) Joyo California Sound direct into iPad demo by thealbinored1
- (2012-10-23) Joyo California sound demo.. by jamesm5744
- (2012-10-27) Joyo 'California sound' demo no.2 by jamesm5744
- (2013-01-19) Joyo JF-15 California by KDM Pedals
- (2013-01-25) Joyo JF-15 California Sound by musicexpresscanada
- (2013-10-25) Joyo JF-15 California Sound Guitar-Effekt-Pedal fra DanGuitar.dk by DG - DanGuitar
- (2014-01-21) Review Joyo California Sound JF-15 by Joyo Argentina
- (2014-09-14) Joyo California Sound (Mesa Boogie) Pedal Demo by intheblues
- (2015-02-04) Joyo Quickies - California - Series 1 by EytschPi42
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