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Boss OC-5 Guitar & Bass Octave Pedal

Featuring Vintage/Polyphonic Modes, Lightning-Fast Tracking & Guitar/Bass Switch!

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Product Description

Japanese guitar pedal giant BOSS are constantly refining their effects formulas to meet the demands of modern players. The OC-5 is their latest octave stompbox creation, merging classic pitch-shifting tones with enhanced tracking technologies to set a new standard in octave pedal performance.

Key appointments include vintage/polyphonic modes, providing legendary OC-2 sounds and chord-friendly effects, along with the addition of an octave-up feature for a total span of 3 octaves. Let your creativity flow with the BOSS OC-5 - one of the most versatile compact octave pedals on the market!

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Lightning-Fast Tracking

A newly-designed tracking engine gives the BOSS OC-5 incredible processing performance, ensuring zero latency, sublime accuracy and phenomenal expression. It also offers a wider range and improved polyphonic capabilities than previous OC models, covering all of your octave needs.

Vintage OC-2 Sounds

Released in 1982, the BOSS OC-2 was the world's first modern octave pedal for guitar and bass. Adored for its warm yet articulate tone, the OC-2 has been used on countless records by some of the best in the business. With the BOSS OC-5, you can recapture the OC-2's iconic mono voice via the 'Vintage' mode - enhanced with the new tracking engine for a super-fast response.

Improved Polyphonic Performance

BOSS' OC-5 also boasts an updated version of the smart 'Poly' mode that first featured on the OC-3 Super Octave pedal. This allows you to play full chords with breathtaking octave effects!

The variable 'Range' control is a clever appointment, as it restricts the effect to just the lower notes on your instrument - ideal for playing octave-affected bass lines with normal chords and melodies in the higher register. With the new tracking refinements, you can even isolate the octave effect to just the bottom note in a chord - simply turn the 'Range' knob to the "lowest" setting.

Octave Up!

Another noteworthy update for the OC-5 is the new octave-up feature, which can be engaged for both the 'Vintage' and 'Poly' modes. Bring in this sweet effect by turning the dedicated '+1 OCT' knob. You can even use the octave-up sound on its own, which is perfect for achieving 12-string-esque sounds. Alternatively, you could blend this with the '-1 OCT' and '-2 OCT' sub-octave effects for fat organ-like tones!

Guitar/Bass Switch & Direct Out

A switch at the back of the OC-5's enclosure allows you to optimise its tracking performance for either guitar or bass. And a 'Direct Out' jack also makes it easy to route dry and effect signals to different sound sources, such as two amplifiers or discrete channels on a mixer/audio interface!

Key Features

  • The industry-standard octave pedal, updated with enhanced features 
  • Newly developed tracking technology provides more accurate response and natural feel with no latency
  • Vintage mode faithfully reproduces the mono sound of the original OC-2
  • Poly mode for chord playing; Range knob sets the note range where the effect is applied
  • Lowest Range setting in Poly mode applies the octave effect to only the lowest note in a chord  
  • New octave-up effect, available on its own or blended with octave-down effects
  • Mode switch optimizes the tracking engine for guitar or bass
  • Direct out for wet/dry setups
  • BOSS five-year warranty  


  • Nominal Input Level: -20 dBu
  • Input Impedance: 1 M ohm
  • Nominal Output Level: -20 dBu
  • Output Impedance: 1 k ohm
  • Recommended Load Impedance: 10 k ohms or greater
  • Bypass: Buffered
  • Indicator: Check indicator (serves also as battery check indicator) 


  • Pedal switch
  • GUITAR/BASS switch
  • VINTAGE/POLY switch
  • +1OCT knob
  • -1OCT knob
  • -2OCT/RANGE knob


  • INPUT jack: 1/4-inch phone type
  • OUTPUT jack: 1/4-inch phone type
  • DIRECT OUT jack: 1/4-inch phone type
  • DC IN jack


  • Alkaline battery (9 V, 6LR61 or 6LF22)
  • AC adaptor (PSA series: sold separately)
  • Current Draw: 55 mA


  • 73 (W) x 129 (D) x 59 (H) mm
  • 2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches


  • 440g
  • 1lb


  • Owner's Manual
  • Leaflet
  • Alkaline battery (9 V, 6LR61 or 6LF22)
Elliot Stent author picture

Written by Elliot Stent

Customer Reviews


49 reviews





Trusted Customer23rd Feb 2024

Took me a little while to get the settings right..!

Value 4Looks 4Durability 4Sound 5

Mr John Clamp25th Jan 2024

Value 4Looks 5Durability 5Sound 5

Peter Wright31st Oct 2023

Tom Bewes23rd Oct 2023

Great fun pedal. Sounds amazing.

Value 5Looks 5Durability 5Sound 5

Peter Grandidge17th Oct 2023

Great pedal. Everything I needed

Value 5Looks 5Durability 5Sound 5

Trusted Customer5th Oct 2023

Mr J McDonald7th Sep 2023

Mr Laurence Cremetti10th May 2023

It's very good when two things happen. 1/ You get the settings correct 2/ You get your technique very slightly tighter.

Value 4Looks 4Durability 5Sound 4

Mr Barry Clark22nd Apr 2023

Just a must for an acoustic guitar when using amp. If you want a bit of fat and gravy for your sound this is for you.

Value 5Looks 5Durability 5Sound 5

Mr Peter Stone11th Apr 2023

Value 5Looks 5Durability 5Sound 5

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