Boss OC-2 Octave MIJ Black Label Vintage Made in Japan ACA

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Boss OC-2 Octave – 1986 Black Label

Condition

This effects pedal is in Excellent condition. There are a minor paint chips, scuffs and scratches on the exterior. During inspection, four aging electrolytic capacitors in the input/tracking section were replaced with correct-spec components. The aging rubber screw grommet was also replaced. See included photos for completed service. The pedal was then extensively tested on guitar and bass, with tracking and overall operation verified.  This unit has been thoroughly cleaned and tested with 9v battery and compatible power supply. All functions are operational. Build date of March 1986. The original packaging and instructions are not included. This unit requires a BOSS ACA power supply or a 9V battery. Have questions about powering Boss ACA 12v pedals? Message us!

Professor’s Notes

The black label OC-2 is the octave pedal that doesn’t just “add an octave”, it gives your signal a second shadow that moves like an instrument. It’s warm, slightly unstable in the best way, and instantly musical: single notes turn into synth-bass lines, and simple riffs become hooks. If you’ve ever wanted your rig to feel bigger without getting louder, this is one of the all-time great answers.

Professor’s Tips

• Start monophonic on purpose. The OC-2 tracks best with single notes and clean-ish technique. Think bass player mindset: one note at a time, confident attack, clean muting.
• Classic “synth bass” recipe:
  • OCT-1: ~1:00–2:00
  • OCT-2: ~9:00–11:00
  • DIRECT: ~10:00–12:00
    This gives you weight + a hint of sub without turning into a foghorn.
• Guitar vs bass balance:
  • On guitar, keep DIRECT a bit higher so it stays articulate.
  • On bass, you can lean harder on OCT-1 for that famous OC-2 thump.
• Placement is everything:
  • Early in chain (before drive/mod/delay) for the best tracking and most “synthy” response.
  • If you want a gnarlier, glitchier character, put a mild drive after it.
  • If it gets warbly, simplify. Roll back tone, play higher up the neck, and reduce chord content. The OC-2 rewards restraint.
  • Use OCT-2 as spice, not the meal. A little sub makes everything feel expensive; too much can swallow your low mids fast.

Specifications

Power: Battery 9V (x 1) AC Adaptor: ACA-Series (ACA-120, Optional)

Consumption Current Draw: 4mA at 9V

Controls: DIRECT LEVEL, OCTAVE 1, OCTAVE 2

Others: NORMAL/EFFECT Select Switch (FET Electric Switching System)

Jacks: INPUT, OUTPUT

Residual Noise: -100dBm (IHF-A)

Maximum Input Level: -5dBm

Maximum Output Level: 0dBm

Input Impedance: 1M Ohm (FET Input)

Output Load Impedance: 10k Ohms or more

Minimum Operating Input Level: -60dBm at 250Hz

Dimensions: 70(W) x 55(H) x 125(D) mm, 2 3/4(W) x 2 3/16 (H) x 4-15/16(D) inches

Weight: 400g/14oz