Boss OC-5 Octave Pedal

Boss OC-5 Octave Pedal | No Limit Guitar Co, Idaho Falls

The Boss OC-5 is the does-it-all octave pedal that finally makes guitarists and bassists choose between classic mono octave tone and modern polyphonic tracking a thing of the past. Vintage mode delivers the legendary OC-2 mono octave effect — the sound that defined what an octave pedal should be since 1982 — with improved tracking that's better than ever. Poly mode adds smart polyphonic bass note enhancement under chords for solo performers and duo setups. A +1 Oct control unlocks 12-string textures and screaming octave-up lead tones in either mode. A dedicated Guitar/Bass switch tailors the tracking response to the instrument, an isolated Direct Out sends a parallel dry signal to a separate amp or front of house, and the tracking engine — based on BOSS's top-tier effects floorboards — delivers ultra-low latency and zero dropped notes. For guitar and bass players, the OC-5 is the octave pedal evolution that finally does everything.

Product Overview

The OC-5's Vintage mode is the starting point for players who know exactly what an octave pedal should sound like. Since the OC-2 Octave's debut in 1982, the classic BOSS mono octave effect has defined the way most guitarists and bassists think about octave pedals — the tight, synth-like sub-bass that adds thunder to bass lines, the one-octave-down effect that thickens lead lines without muddying them, and the characteristic character of the two octave-down control for more extreme sub-bass textures. The OC-5 delivers all of this with dedicated dry, -1 Oct, and -2 Oct controls, while the improved tracking engine reduces the latency and tracking instability that limited older octave designs — particularly at lower notes on guitar and bass, where older tracking circuits could lose lock and produce dropouts or unwanted artifacts.

Poly mode opens up a different creative territory that the OC-2 could never access. Rather than processing a single-note input for sub-bass, Poly mode intelligently tracks polyphonic input — power chords, open chords, barre chords — and adds bass-like root notes beneath them, filling out the low-frequency content of a chord voicing without a bassist. A Range knob restricts which strings and fret positions receive the polyphonic octave enhancement, giving solo acoustic performers and duo setups precise control over where the effect engages — preventing it from adding octave content to high-register single-note lines where it wouldn't be appropriate.

The +1 Oct control adds an octave-up voice that can be layered on top of either Vintage or Poly mode's octave-down controls — a versatile tool that ranges from faux 12-string textures when blended subtly with the dry signal, to the singing, harmonically rich octave-up fuzz tones associated with some of the most celebrated guitar leads in rock history. Running all the available controls simultaneously produces a thick, layered tone that spans multiple octave ranges from a single guitar signal.

The tracking engine at the heart of the OC-5 is derived from BOSS's top-tier multi-effects floorboards — producing some of the lowest-latency, most responsive octave tracking in the compact pedal format. The dedicated Guitar/Bass switch on the side of the pedal tailors the tracking response to the specific frequency range and playing characteristics of each instrument, effectively making the OC-5 two separate, well-optimized octave pedals in a single enclosure. The isolated Direct Out sends a parallel dry signal independent of the octave effect — preserving the full character of the input signal for routing to a dedicated clean amp in a wet/dry setup, or sending a clean signal to front of house while the main output feeds stage monitors or amplifiers. At 55mA current draw, the OC-5 runs approximately seven hours on a 9V battery or indefinitely on a standard center-negative pedalboard power supply.

Ideal For

• Guitarists who want the classic OC-2 mono octave effect alongside modern polyphonic chord enhancement in a single pedal
• Bass players who want the legendary BOSS octave sub-bass tone with improved tracking at low frequencies
• Solo acoustic performers who want polyphonic root note enhancement under chords to fill out their low-frequency content without a bassist
• Players who want octave-up faux 12-string textures and classic octave fuzz lead tones available alongside octave-down effects
• Wet/dry rig users and live performers who need an isolated Direct Out for parallel dry signal routing
• Guitarists and bassists in Idaho Falls looking for the most comprehensive, versatile BOSS octave pedal ever made

Key Features

Vintage Mode — Classic OC-2 Mono Octave Recreation
Vintage mode delivers the legendary OC-2 mono octave sound — dedicated dry, -1 Oct, and -2 Oct controls recreating the synth-like sub-bass and tight octave-down character that defined BOSS's iconic octave effect since 1982, now with improved tracking.

Poly Mode — Polyphonic Chord Bass Enhancement
Poly mode adds intelligent polyphonic tracking that enhances power chords, open chords, and barre chords with bass-like root notes — a Range knob restricts octave engagement to specific playing positions, making it a complete solution for solo performers who need low-frequency content under chords.

+1 Octave Control
A dedicated +1 Oct control works in both Vintage and Poly modes, adding octave-up character ranging from subtle faux 12-string texture to singing, classic rock octave fuzz lead tones — available simultaneously with the octave-down controls for thick, multi-octave tone.

Ultra-Low-Latency Tracking Engine
The OC-5's tracking engine, derived from BOSS's top-tier effects floorboards, delivers some of the lowest-latency, most stable octave tracking in a compact pedal format — producing smooth, expressive, zero-dropout octave effect performance across both guitar and bass frequency ranges.

Dedicated Guitar/Bass Switch
A side-panel switch tailors the OC-5's tracking response to the specific characteristics of guitar or bass, effectively providing two separately optimized octave effects in a single pedal enclosure.

Isolated Direct Out
A parallel dry Direct Out preserves the full character of the input signal independently of the octave effect — essential for wet/dry amp setups, front-of-house clean signal routing, and any application where the dry tone needs to remain unprocessed.

Flexible Power — Battery or DC Supply
At 55mA current draw, the OC-5 runs approximately seven hours on a single 9V alkaline battery, or indefinitely on a standard center-negative pedalboard power supply (sold separately).

What's Included

• Boss OC-5 Octave Pedal
• Free standard shipping

Note: 9V DC power supply and battery sold separately.

Technical Specifications

Get Your Hands on This Octave Pedal Today

The Boss OC-5 is available now at No Limit Guitar Co in Idaho Falls. Stop in to compare Vintage and Poly modes in person and hear the improved tracking engine for yourself, or reach out online to order yours — the octave pedal that does it all for guitar and bass alike.