Looping Pedals Randolf Arriola’s oompah loompah board circa Jan 2012 60 Second Deluxe 856 for ZELLERSASN Akai Headrush ammoon STEREO LOOPER Boomerang 1+2 Boomerang 3 Digitech JamMan (original) Digitech JamMan Delay Digitech JamMan Express Digitech JamMan Solo XT Digitech JamMan Stereo Digitech Trio EH 16 Second delay EH Stereo Memory Man Electro-Harmonix 2880 Hologram Microcosm Hotone Skyline WALLY Looper Line6 DL4 Line6 JM4 Looperlative LP2 Mini Looper Maneco Looper Pigtronics Infinity RiffBox Roland Boss DD-20 GigaDelay Roland BOSS RC-3 (RC-2) Roland BOSS RC-30 (RC-20) Roland BOSS RC-300 Roland BOSS RC-50 Roland BOSS VE-20 Rowin Twin Looper SingularSound Aeros T.C. Ditto Looper T.C. Ditto X4 Looper T.C. Flashback T.C. Flashback X4 TC-Helicon VoiceLive TimeFactor TimeLine Vox Dynamic Looper VDL-1 Vox Lil’ Looper Per Boysen maintains a great overview here: Looping Devices Comparison Chart