PedalCurrent drawVoltage info
1484 Twin Twelve (Silvertone)?9-18vDC (9vDC likely preferred*)
Amp Mode10 mA9-18vDC
Asabi120 mA9vDC only
Belle Starr20 mA9-18vDC
Bloom v2300 mA9vDC only
Blossom20 mA9-18vDC
Broken Arrow v2150 mA9vDC only
Fuzz Modular Fuzz50 mA9vDC only
Golden Boy150 mA9vDC only
New Wave300 mA (adapter spec)18vDC
Optimist150 mA9vDC only
Prism100 mA9vDC only
Twin Trem (Silvertone)9vDC only (though some pedals may say 9-18vDC on them)*

Note: Most of the pedals marked ”9vDC only” have internal voltage booster circuitry, and will be damaged by higher input voltages. In one or two cases, the pedal will not be damaged (up to 18vDC input), but nothing will be gained from raising the voltage. So unless the list says ”9-18vDC”, stick to 9vDC!

*Note 2: In addition to the above, the Twin Twelve (and possibly the Twin Trem) says ”internally regulated and boosted”, likely meaning that there’s no practical benefit to giving it more than 9vDC, even though it can handle up to 18vDC. The incoming voltage is regulated and converted internally, to whatever the circuit wants to see.


ISP Technologies
JAM pedals