---
product_id: 43752754
title: "Donner Octave Guitar Pedal, Harmonic Square Digital Octave Mini Pedal Pitch Shifter 7 Shift Types 3 Tone Modes Sharp Detune Flat True Bypass"
brand: "donner"
price: "€ 107.30"
currency: EUR
in_stock: true
reviews_count: 13
category: "Donner"
url: https://www.desertcart.sk/products/43752754-donner-octave-guitar-pedal-harmonic-square-digital-octave-mini-pedal
store_origin: SK
region: Slovakia
---

# True bypass for transparent tone 7 shift types for versatile pitch control 3 tone modes: Sharp, Flat, Detune Donner Octave Guitar Pedal, Harmonic Square Digital Octave Mini Pedal Pitch Shifter 7 Shift Types 3 Tone Modes Sharp Detune Flat True Bypass

**Brand:** donner
**Price:** € 107.30
**Availability:** ✅ In Stock

## Summary

> 🎸 Elevate your soundscape—21 ways to stand out on every stage!

## Quick Answers

- **What is this?** Donner Octave Guitar Pedal, Harmonic Square Digital Octave Mini Pedal Pitch Shifter 7 Shift Types 3 Tone Modes Sharp Detune Flat True Bypass by donner
- **How much does it cost?** € 107.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/43752754-donner-octave-guitar-pedal-harmonic-square-digital-octave-mini-pedal)

## Best For

- donner enthusiasts

## Why This Product

- Trusted donner brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Customizable Blend:** WET and DRY knobs let you balance harmonic and dry signals for perfect mix.
- • **Built to Gig & Last:** Durable aluminum alloy chassis with LED indicator ensures stage-ready reliability.
- • **Precision Pitch Control:** Fine-tune your sound with Sharp, Flat, and Detune modes to craft your signature tone.
- • **True Bypass Transparency:** Preserve your pure guitar tone when pedal is off—no signal loss, no compromises.
- • **21 Unique Sound Variations:** Unlock 7 shift types combined with 3 tone modes for endless sonic creativity.

## Overview

The Donner Octave Guitar Pedal, Harmonic Square, is a compact, aluminum-alloy pitch shifter offering 7 shift types and 3 tone modes (Sharp, Flat, Detune) for 21 unique sound options. Featuring WET and DRY knobs for signal blending and true bypass for transparent tone, it’s designed for durability and professional performance. Perfect for guitarists seeking versatile octave and pitch effects with reliable stage-ready build quality.

## Description

Buy Donner Octave Guitar Pedal, Harmonic Square Digital Octave Mini Pedal Pitch Shifter 7 Shift Types 3 Tone Modes Sharp Detune Flat True Bypass: Electric Guitar Effects - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Compact, inexpensive, and sounds great. - For the cost I cannot find anything to complain about with this pedal. The Donner Distortion pedal allows me to produce a wide range of distortions, from a relatively mild, overdrive tone, to hair metal. Adjusting the tone and volume using the knobs is simple, and the noise level is not overwhelming, and disappears completely when using a noise gate. I've been practicing and gigging with this pedal and it has held up great so far. It is powered by a standard, 12v power supply (not included) If you're looking for a compact, inexpensive, distortion pedal for your board, I highly recommend this one, it does a nice job at a great price.
Review: Two Harmonic Squares together are AMAZING!!! - So I ended up with 2 Harmonic Square Pedals. Wanting to gift one to a friend, I plugged them both in at the same time, you know... keep the 'good one' hehe. WOW!!!!!! I cannot describe how nice they sound together -running one into another. Used separately they work very well and do what they should (including a killer chorus in the 'detune' setting) but together they sound so rich, deep, full, shimmery and expensive. With both of these on at the same time there is near endless settings just flipping the switch and turning the pitch knob. Easily sounds like a $450 effect. Run these into a tad of reverb/delay and it's absolutely amazing ambient heaven. It could be one of the coolest pedal combo's for shimmer/pitch/chorus/octaving/doubling... SO GLAD I ACCIDENTLY TRIED THIS. So in short, I'm buying my buddy a new one.

## Features

- [Octave/Pitch shifter Pedal] With 7 shift types and 3 tone mode toggles, Harmonic Square guitar pedal gives you 21 options of semitonal, octave and detune sounds
- [3 Tone Modes]: 3 tone modes including Sharp, Flat, and Detune; Sharp: Pitch up; Detune: Adjustable pitch signal shifted by 10 cents; Flat: Pitch down
- [WET and DRY Knobs]: WET Knob: Adjust the harmonic signal level; DRY Knob: Adjust the dry signal level
- [Buit to Last]: Whole Aluminium-alloy classic, stable and strong; LED indicator shows the working state
- [True Bypass ]: Digital circuit design, true bypass provides a transparent tone
- [Kind reminder]: Please power the pedal with a 9V DC adapter (NOT Included), center negative polarity, and a minimum of 500mA current for optimal performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072LG2BZ9 |
| Best Sellers Rank | #75 in Musical Instruments ( See Top 100 in Musical Instruments ) #1 in Electric Guitar Pitch & Octave Effects |
| Body Material | Aluminum Alloy |
| Color Name | Red Octave |
| Connector Type | 1/4 inch audio |
| Customer Reviews | 4.2 4.2 out of 5 stars (21,930) |
| Date First Available | May 10, 2017 |
| Hardware Interface | 1/4-inch Audio |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8.8 ounces |
| Item model number | EC966 |
| Power Source | Adapter |
| Product Dimensions | 2.36 x 2.44 x 3.94 inches |
| Signal Format | Analog |
| Voltage | 9 Volts |

## Product Details

- **Brand:** Donner
- **Color:** Red Octave
- **Item Weight:** 0.25 Kilograms
- **Product Dimensions:** 3.7"L x 1.7"W x 2"H
- **Style:** Octave Pedal, Pitch Shifter, Guitar, Bass

## Images

![Donner Octave Guitar Pedal, Harmonic Square Digital Octave Mini Pedal Pitch Shifter 7 Shift Types 3 Tone Modes Sharp Detune Flat True Bypass - Image 1](https://m.media-amazon.com/images/I/71VJr1J6+wL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Compact, inexpensive, and sounds great.
*by B***. on December 6, 2025*

For the cost I cannot find anything to complain about with this pedal. The Donner Distortion pedal allows me to produce a wide range of distortions, from a relatively mild, overdrive tone, to hair metal. Adjusting the tone and volume using the knobs is simple, and the noise level is not overwhelming, and disappears completely when using a noise gate. I've been practicing and gigging with this pedal and it has held up great so far. It is powered by a standard, 12v power supply (not included) If you're looking for a compact, inexpensive, distortion pedal for your board, I highly recommend this one, it does a nice job at a great price.

### ⭐⭐⭐⭐⭐ Two Harmonic Squares together are AMAZING!!!
*by A***R on November 26, 2025*

So I ended up with 2 Harmonic Square Pedals. Wanting to gift one to a friend, I plugged them both in at the same time, you know... keep the 'good one' hehe. WOW!!!!!! I cannot describe how nice they sound together -running one into another. Used separately they work very well and do what they should (including a killer chorus in the 'detune' setting) but together they sound so rich, deep, full, shimmery and expensive. With both of these on at the same time there is near endless settings just flipping the switch and turning the pitch knob. Easily sounds like a $450 effect. Run these into a tad of reverb/delay and it's absolutely amazing ambient heaven. It could be one of the coolest pedal combo's for shimmer/pitch/chorus/octaving/doubling... SO GLAD I ACCIDENTLY TRIED THIS. So in short, I'm buying my buddy a new one.

### ⭐⭐⭐⭐ Sounds AWESOME!
*by M***. on December 2, 2025*

I really enjoyed using the looper pedal by Donner. Once again this brand delivers an excellent product at an extremely low price point! The controls are very easy to use, though I did notice a slight difference in sound quality when being played back through my amp, not too bad though. I removed a star because I noticed another persons pre recordings were saved to the device but that’s hardly a complaint. I would definitely buy again!

## Frequently Bought Together

- Donner Octave Guitar Pedal, Harmonic Square Digital Octave Mini Pedal Pitch Shifter 7 Shift Types 3 Tone Modes Sharp Detune Flat True Bypass
- Donner DPA-1 Guitar Pedal Power Supply Adapter 9V DC 1A Tip Negative 5 Way Daisy Chain Cables for Guitar Effect Pedal
- Donner 6 Inch Guitar Patch Cable Guitar Effect Pedal Cables Black 6 Pack

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-03*