| Pedal | Current draw | Adapter* |
|---|---|---|
| Compact pedals | ||
| AC-2 Acoustic Simulator | 18 mA | PSA |
| AC-3 Acoustic Simulator | 39 mA | PSA |
| AD-2 Acoustic Preamp | 55 mA | PSA |
| AW-2 Auto Wah | 15 mA | PSA |
| AW-3 Dynamic Wah | 45 mA | PSA |
| BB-1X Bass Driver | 54 mA | PSA |
| BC-1X Bass Comp | 90 mA | PSA (9vDC only) |
| BC-2 Combo Drive | 45 mA | PSA |
| BD-2 Blues Driver | 13 mA | PSA |
| BD-2w Blues Driver (Waza Craft) | 18 mA | PSA |
| BF-2 Flanger | 15-18 mA (fluctuating) | ACA/PSA |
| BF-2B Bass Flanger | 14 mA | ACA 12v |
| BF-3 Flanger | 40 mA | PSA |
| BP-1w Booster/Preamp (Waza Craft) | 60 mA | PSA |
| CE-2 Chorus | 9 mA | ACA 12v |
| CE-2B Bass Chorus | 9-11 mA (fluctuating) | ACA 12v |
| CE-2w Chorus (Waza Craft) | 25 mA | PSA |
| CEB-3 Bass Chorus | 18 mA | PSA |
| CE-3 Chorus | 13 mA | ACA 12v |
| CE-5 Chorus Ensemble | 20 mA | PSA |
| CH-1 Super Chorus | 15 mA | PSA |
| CP-1X Compressor | 90 mA | PSA (9vDC only) |
| CS-1 Compressor | 5 mA | ACA 12v |
| CS-2 Compressor | 4 mA | ACA 12v |
| CS-3 Compressor | 10 mA | PSA |
| DA-2 Adaptive Distortion | 45 mA | PSA |
| DC-2 Dimension C | 30 mA | PSA |
| DC-2w Dimension C (Waza Craft) | 51 mA | PSA |
| DC-3 Digital Dimension / Digital Space-D | 60 mA | PSA |
| DD-2 Digital Delay | 57 mA | PSA |
| DD-3 Digital Delay | 45-57 mA (depending on version) | PSA |
| DD-5 Digital Delay | 57 mA | PSA |
| DD-6 Digital Delay | 55 mA | PSA |
| DD-7 Digital Delay | 52 mA | PSA |
| DD-8 Digital Delay | 100 mA | PSA |
| DF-2 Super Feedbacker & Distortion | < 5 mA | ACA 12v |
| DM-2 Delay | <5 mA (11mA stated) | ACA 12v |
| DM-2w Delay (Waza Craft) | 35 mA | PSA |
| DM-3 Delay | 11 mA | ACA 12v |
| DN-2 Dyna Drive | 36 mA | PSA |
| DS-1 Distortion | 4 mA (20 mA stated) | ACA/PSA |
| DS-1w Distortion (Waza Craft) | 15 mA | PSA |
| DS-1X Distortion | 45 mA | PSA |
| DS-2 Turbo Distortion | 13 mA | PSA |
| DSD-2 Digital Sampler/Delay | 55 mA | PSA |
| DSD-3 Digital Sampler/Delay | 55 mA | PSA |
| EH-2 Enhancer | 24 mA | PSA |
| FBM-1 Fender ’59 Bassman (COSM) | 36 mA | PSA |
| FDR-1 Fender ’65 Deluxe Reverb (COSM) | 40 mA | PSA |
| FRV-1 Fender Reverb | 37 mA | PSA |
| FT-2 Dynamic Filter | 16 mA | ACA 12v |
| FZ-1w Fuzz (Waza Craft) | 16 mA | PSA |
| FZ-2 Hyper Fuzz | 14 mA (65mA stated) | PSA |
| FZ-3 Fuzz | 6 mA | PSA |
| FZ-5 Fuzz (COSM) | 36 mA | PSA |
| GE-6 Equalizer | 7 mA | ACA 12v |
| GE-7 Equalizer | 8 mA | ACA/PSA |
| GE-7B Bass Equalizer | 16 mA | ACA 12v |
| GEB-7 Bass Equalizer | 17 mA | ACA/PSA |
| HF-2 Hi Band Flanger | 18 mA | ACA 12v |
| HM-2 Heavy Metal | <5 mA | ACA 12v |
| HM-2w Heavy Metal (Waza Craft) | 30 mA | PSA |
| HM-3 Hyper Metal | 12 mA | PSA |
| HR-2 Harmonist | 75 mA | PSA |
| IR-2 Amp & Cabinet | 160 mA | PSA |
| JB-2 Angry Driver | 50 mA | PSA |
| LM-2 Limiter | 12mA | ACA 12v |
| LM-2B Bass Limiter | 16 mA | ? |
| LMB-3 Bass Limiter Enhancer | 17 mA | PSA |
| LS-2 Line Selector | 23 mA | PSA |
| MD-2 Mega Distortion | 18 mA | PSA |
| ML-2 Metal Core | 31 mA | PSA |
| MO-2 Multi Overtone | 40 mA | PSA |
| MT-2 Metal Zone | <5 mA (20 mA stated) | PSA |
| MT-2w Metal Zone (Waza Craft) | 35 mA | PSA |
| MZ-2 Digital Metalizer | 70 mA | PSA |
| NF-1 Noise Gate | 4 mA | ACA 12v |
| NS-1x Noise Suppressor | 60 mA | PSA |
| NS-2 Noise Suppressor | 20 mA | PSA |
| OC-2 Octave | 4 mA | ACA/PSA |
| OC-3 Super Octave | 45 mA | PSA |
| OC-5 Octave | 55 mA | PSA |
| OD-1 OverDrive | 4.5 mA | ACA 12v |
| OD-1X OverDrive | 45 mA | PSA |
| OD-2 Turbo Overdrive | 10 mA | ACA 12v |
| OD-2R Turbo Overdrive | 16 mA | PSA |
| OD-3 Overdrive | 9 mA | PSA |
| ODB-3 Bass Overdrive | 13 mA | PSA |
| OS-2 Overdrive/Distortion | <5 mA | PSA |
| PH-1 Phaser | 7 mA | ACA 12v |
| PH-1R Phaser | <5 mA | ACA 12v |
| PH-2 Super Phaser | 16 mA | ACA/PSA |
| PH-3 Phase Shifter | 44 mA | PSA |
| PN-2 Tremolo/Pan | 20 mA | PSA |
| PQ-3B Bass Parametric EQ | 25 mA | PSA |
| PQ-4 Parametric EQ | 21 mA | PSA |
| PS-2 Digital Pitch Shifter/Delay | 60 mA | PSA |
| PS-3 Digital Pitch Shifter/Delay | 70 mA | PSA |
| PS-5 Super Shifter | 50 mA | PSA |
| PS-6 Harmonist | 45 mA | PSA |
| PSM-5 Power Supply & Master Switch | < 5 mA | PSA |
| PW-2 Power Driver | 15 mA | PSA |
| PW-10 V-wah | 55 mA | PSA |
| RC-1 Loop Station | 72 mA | PSA |
| RC-2 Loop Station | 50 mA | PSA |
| RC-3 Loop Station | 70 mA | PSA |
| RC-5 Loop Station | 170 mA | PSA |
| RE-2 Space Echo | 75 mA | PSA |
| RV-2 Digital Reverb | 130 mA | PSA |
| RV-3 Digital Reverb/Delay | 63 mA | PSA |
| RV-5 Digital Reverb | 50 mA | PSA |
| RV-6 Reverb | 65 mA | PSA |
| SD-1 Super Overdrive | 5 mA | ACA/PSA |
| SD-1(C) (latest Malaysian made version) | 9 mA | PSA |
| SD-1w Super Overdrive (Waza Craft) | 15 mA | PSA |
| SD-2 Dual Overdrive | 21 mA | PSA |
| SDE-3 Dual Digital Delay | 75 mA | PSA |
| SG-1 Slow Gear | 7 mA | ACA 12v |
| SL-2 Slicer | 95 mA | PSA |
| SP-1 Spectrum | 23 mA | ACA 12v |
| ST-2 Power Stack | 36 mA | PSA |
| SY-1 Synthesizer | 85 mA | PSA |
| SYB-3 Bass Synthesizer | 76 mA | PSA |
| TB-2w Tone Bender | 60 mA | PSA |
| TE-2 Tera Echo | 53 mA | PSA |
| TR-2 Tremolo | 19 mA | PSA |
| TU-2 Tuner | 31 mA | PSA |
| TU-3 Tuner | 24 mA (52 mA in bright mode) | PSA |
| TU-3S Chromatic Tuner | 35 mA max (95 mA max in bright mode) | PSA |
| TU-3w Tuner (Waza Craft) | 60 mA max (110 mA max in bright mode) | PSA |
| TW-1 Touch Wah / T Wah | <5 mA | ACA 12v |
| VB-2 Vibrato | 14 mA | ACA 12v |
| VB-2w Vibrato (Waza Craft) | 35 mA | PSA |
| VO-1 Vocoder | 65 mA | PSA |
| XT-2 Xtortion | 15 mA | PSA |
Twin pedals | ||
| CE-20 Chorus Ensemble | 165 mA | PSA |
| DD-20 Digital Delay | 172 mA | PSA |
| EQ-20 Advanced Equalizer | 120 mA | PSA |
| GP-20 Amp Factory | 85 mA | PSA |
| OC-20G Poly Octave | ? | PSA |
| OD-20 Drive Zone | 85 mA | PSA |
| RC-20 Loop Station | 85 mA | PSA |
| RC-20XL Loop Station | 106 mA | PSA |
| RC-30 Loop Station | 195 mA max | PSA |
| RE-20 Space Echo | 64 mA | PSA |
| RT-20 Rotary Processor | 85 mA | PSA |
| SL-20 Slicer | 110 mA | PSA |
| VE-20 Vocal Performer | 180 mA max | PSA |
| WP-20G Wave Processor | ? | PSA |
200 series | ||
| DD-200 Digital Delay | 225 mA | PSA-S |
| EQ-200 Graphic Equalizer | 170 mA | PSA-S |
| IR-200 Amp & IR Cabinet | 335 mA | PSA-S |
| MD-200 Modulation | 225 mA | PSA-S |
| OD-200 Hybrid Drive | 220 mA | PSA-S |
| RE-202 Space Echo | 140 mA | PSA-S |
| RV-200 Reverb | 260 mA | PSA-S |
| SY-200 Synthesizer | 230 mA | PSA-S |
500 series | ||
| DD-500 Digital Delay | 200 mA | PSA-S |
| MD-500 Modulation | 225 mA | PSA-S |
| RC-500 Loop Station | 240 mA (330 mA w phantom power) | PSA-S |
| RV-500 Reverb | 225 mA | PSA-S |
| VE-500 Vocal Performer | 210 mA (310 mA w phantom power) | PSA-S |
Others | ||
| AD-3 Acoustic Instrument Processor | 90 mA | PSA |
| AD-8 Acoustic Guitar Processor | 120 mA | PSA |
| AD-10 Acoustic Preamp | 300 mA | PSA-S |
| BE-5 Guitar Multiple Effects | 96 mA | PSA |
| DM-101 Delay Machine | 260 mA | PSA-S |
| DR 550 Dr. Rythm | 65 mA | PSA |
| ES-5 Effects Switching System | 125 mA | PSA-S |
| ES-8 Effects Switching System | 400 mA | PSA-S |
| FW-3 Foot Wah | 5 mA | PSA |
| GT-1 Guitar Effects Processor GT-1B Bass Effects Processor | 200 mA | PSA-S |
| HC-2 Hand Clapper | 11 mA | PSA |
| MS-3 Multi Effects Switcher | 280 mA | PSA-S |
| PW-3 Wah Pedal | <5 mA | PSA |
| PW-10 V-wah | 55 mA | PSA |
| RC-10R Rhythm Loop Station | 250 mA | PSA-S |
| RC-300 Loop Station | 350 mA max | PSA-S |
| RRV-10 Digital reverb (mini rack) | 125 mA | PSA |
| SDE-3000D, SDE-3000EVH | 450 mA | PSB-1U |
| SY-300 Guitar Synthesizer | 400 mA | PSA-S |
| VE-8 Acoustic Singer | 360 mA | PSA-S |
* Note:
All Boss pedals have a sticker near the adapter jack, which indicates which adapter is needed. PSA pedals wants to see a regulated 9vDC adapter, while ACA pedals needs regulated 12vDC (the original ACA adapter was 9vDC unregulated, which turns out to about 12vDC at the loads these pedals put on it). Since august 1997, all Boss pedals (including surviving ACA designs) use 9 volts DC and are labeled ”PSA”.
Therefore, adapter listings that read ”ACA/PSA” means that if the pedal is older than mid 1997 (ACA sticker), it wants the old-style ACA adapter/12vDC regulated. If it is newer (PSA sticker), or if it has been modified to PSA specs, it works fine with the 9vDC PSA adapter. To find out (if the sticker isn’t there), plug your regular 9vDC supply into the pedal in question (alone, without daisy chain) – if the LED barely lights up, the pedal is definitely an ACA model.
Also, old (pre august 1997) ACA pedals will work fine from 9vDC, if they are daisy-chained with regular PSA pedals, and have signal cables connected between them. There’s a more indepth article about it here, if you’re so inclined. But whatever you do, do not confuse ACA with ”AC” – the pedal still expects a DC input voltage, and feeding it 9vAC will fry it.
A later version of the PSA adapter is the ”PSA-S”, with 500 mA capacity. This one is used for higher current effects, but will also work with lower current PSA-spec pedals.