The 1 SPOT is 9VDC (not AC), with a barrel-style output plug which is center negative.
The Converter Plugs (CL6, C35, CYR, CBAT) allow the 1 SPOT to work with other types of DC power jacks and opposite polarity.
Will the 1 SPOT power my pedal? If your pedal can operate with a single 9V battery, yes. If the power jack on the pedal is labeled 9VDC and uses less than 1700mA (virtually all pedals use far less current than that), yes, the 1 SPOT can power it. Most pedals use the barrel-style power jack with the polarity described above. For most others, one of the 1 SPOT Converter Plugs should work. Occasionally, some pedals do not share power very well with other pedals, but this is rare. In most cases, you can link your pedals with Multi-Plug 5 or 8 cables, having all of them sharing a 1 SPOT.
Partial Compatibility Chart:
Akai – All pedals
Aphex – All pedals
Arion – All pedals
Austone – All pedals
Boss – All pedals
Barber – All pedals
Carl Martin (all models without AC cord) Casio Keyboards
Danelectro – All pedals Demeter Tremulator – C35 Digitech
X series pedals
RP50, BP50, BP80
RP100, BP100 – CL6
RP200 and higher – not compatible
DOD – All pedals (older models require C35) Dunlop –
Crybaby Wahs Rotovibe
Uni-Vibe Stereo Chorus
EBS – All pedals Electro-Harmonix –
Big Muff – C35 (USA), CBAT (Russian)
Bass Balls – C35
Holy Grail – C35 (requires separate 1 SPOT to avoid noise)
Small Clone – C35
Small Stone – C35
Holier Grail, Frequency Analyzer, MicroSynth, Q-Tron, Tube pedals – not compatible
Expandora
Frantone – All pedals (except Glacier); for pre-2002 models, use C35
Fulltone – All pedals (except 69, Soul Bender, Octafuzz – these require CYR on a separate 1 SPOT from other “normal” pedals.)
Guyatone – All pedals
Ibanez – All pedals (some older models require C35)
Jacques – All pedals C35
Line 6 - POD – not compatible
Modeling Pedals – CL6
Tone Core Pedals – Yes, but not recommended for more than one Tone Core plus other brands of pedals Marshall – All pedals
Maxon – All pedals
Moogerfooger – All pedals – CYR (each Moogerfooger pedal requires separate 1 SPOT to avoid noise) Morley – All pedals