Guide: What Is True Bypass

A chromatic pedal tuner will be considered True Bypass when the circuit allows the signal to go directly from the input jack through the switch to the output jack with no connection to the circuitry in the box.

This connection does not degrade the signal output to other pedals or amplifiers. The jacks, wires and switches let only micro-ohm resistance flow inline with the signal which will not affect tone or volume.

Joyo JF-01 "Vintage Overdrive" Pedal with True Bypass, Quality Switch, and Tone, Volume and Drive Knobs Joyo JF-01 "Vintage Overdrive" Pedal with True Bypass, Quality Switch, and Tone, Volume and Drive Knobs
List Price: $39.99
Sale Price: $27.52
You save: $12.47 (31%)
 

Features

  • 9V Battery is included, also has 9V DC power connection
  • JF-01 Vintage Overdrive (distortion pedal)
  • Quality components include LED, notched knobs and wiring
  • Stomp box style DPDT switch for clean, quiet switching
  • Single ¼ inch (instrument cable) input and output jacks

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This question is often answered by Chromatic Pedal Tuner manufacturers through their clever marketing insinuations. According to http://www.stinkfoot.se/andreas/diy/articles/tuners.htm “Very few actually do produce any tuners with a true bypass arrangement. The only one I have confirmed to be true bypass is the Korg PitchBlack. As for the others... in many cases, I know they aren't, and in others, it hasn't been confirmed to be either way.”

This leads to the Other Question, Which Chromatic Pedal Tuners have True Bypass?
Stinkfoot claims to have checked out most of the Pedal Tuners Brands and found very few with the True Bypass circuitry. Some models are sort of true bypass while other models are not even close. The Korg PitchBlack pedalboard tuner is the only confirmed to be true bypass.

The Peterson Strobostomp is understood to be True Bypass, but it seems to have a 1M resistor in the bypass path that may disqualify this Pedal Tuner. A simple test to confirm if a Pedal Tuner is True Bypass is to plug in the Pedal Tuner. If you can tune your guitar/bass, whether the switch is activated or not, the Pedal Tuner you are testing is not True Bypass.

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Remember the definition of True Bypass. The signal must pass straight through the box without going through the circuitry when the effect is bypassed. A failsafe True Bypass can be achieved by wiring a bypass switch inside a separate true bypass box. When this switch is activated, the signal is completely disconnected from the input signal.

When the input to the circuit board is still connected to the signal path and the input impedance of the circuit is loading the signal line, it can cause loss of high frequencies and overall volume. You can test this by connecting the true bypass box to bypass the entire pedal chain so that you have either the straight signal through the bypass box or the buffered signal through the pedal chain. You should be able to hear a difference in sound quality with the bypass box on then off. Let your ears recognize if you need to make adjustment.

The True Bypass Rule is to eliminate the effect of a pedal's input load on the signal when the switch is bypassed. Using a Chromatic Pedal Tuner by itself may not cause any issues, whether it is True Bypass or not. Stacking a series of buffered pedals can lead to signal degradation. To rule out one possible signal underperformance, use a quality cable between the guitar and the pedalboard.

Keep the music LIVE.

Joyo JF-01 "Vintage Overdrive" Pedal with True Bypass, Quality Switch, and Tone, Volume and Drive Knobs
Joyo JF-01 "Vintage Overdrive" Pedal with True Bypass, Quality Switch, and Tone, Volume and Drive Knobs
List Price: $39.99
Sale Price: $27.52
You save: $12.47 (31%)
  Eligible for free shipping!

Features

  • 9V Battery is included, also has 9V DC power connection
  • JF-01 Vintage Overdrive (distortion pedal)
  • Quality components include LED, notched knobs and wiring
  • Stomp box style DPDT switch for clean, quiet switching
  • Single ¼ inch (instrument cable) input and output jacks

Reviews

Donner DT-1 Chromatic Guitar Pedal Tuner, True Bypass
Donner DT-1 Chromatic Guitar Pedal Tuner, True Bypass
Sale Price: $19.99
  Eligible for free shipping!

Features

  • Chromatic which is suitable for wide range tuning
  • LCD display leads clear results of tuning
  • True bypass, real signal, no loss of tune

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Joyo JT-305 Guitar Bass Chromatic Pedal Tuner, True Bypass, 4 Display Modes
Joyo JT-305 Guitar Bass Chromatic Pedal Tuner, True Bypass, 4 Display Modes
Sale Price: $33.07
  Eligible for free shipping!

Features

  • Easy to use
  • Durable Metal Casing
  • True Bypass
  • Four Display Modes
  • Bright LED Display

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Donner True Bypass Surge Rotater Reverb Effect Pedal
Donner True Bypass Surge Rotater Reverb Effect Pedal
Sale Price: $51.99
  Eligible for free shipping!

Features

  • 3 Reverb modes: Room, Plate, Spring
  • Whole aluminum-alloy chassis, stable and strong
  • True bypass provide transparent tone
  • LED indicator shows the working state

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NUX Time Core 7 Delay Effects Guitar Effect Pedal True Bypass Pedal Orange
NUX Time Core 7 Delay Effects Guitar Effect Pedal True Bypass Pedal Orange
Sale Price: $51.22
  Eligible for free shipping!

Features

  • Effect types:7 modeling delay models
  • Presets:1 storable user preset
  • Sampling Frequency: 44.1 kHz
  • A/D converter: 24-bit
  • Signal Processing:32-bit

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Donner Yellow Fall Vintage Pure Analog Delay Guitar Effect Pedal True Bypass
Donner Yellow Fall Vintage Pure Analog Delay Guitar Effect Pedal True Bypass
Sale Price: $34.99
  Eligible for free shipping!

Features

  • Pure analog Whole circuit delay, clear, plump and smooth New Delay effect
  • Aluminium-alloy classic, stable and strong
  • True bypass provide transparent tone
  • LED indicator shows the working state
  • Small, light weight and exquisite guitar effect

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Digitech BWHAMMY Bass Pitch Effect Pedal with True-Bypass and MIDI Input
Digitech BWHAMMY Bass Pitch Effect Pedal with True-Bypass and MIDI Input
List Price: $299.95
Sale Price: $199.95
You save: $100.00 (33%)
  Eligible for free shipping!

Features

  • Iconic Whammy effect
  • Two different classic and chord (polyphonic) tracking modes
  • 21 different pitch settings, MIDI input for control, True bypass
  • Optimized for bass frequencies
  • Updated original Bass Whammy settings and more, power supply included

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Donner Stylish Fuzz Guitar Effects Pedal True Bypass
Donner Stylish Fuzz Guitar Effects Pedal True Bypass
List Price: $109.00
Sale Price: $29.99
You save: $79.01 (72%)
  Eligible for free shipping!

Features

  • Small, light weight and exquisite guitar effect
  • Traditional fuzz effect, plump and rich
  • The whole item is made of aluminum alloy. Classic, stable and strong
  • True bypass, provide transparent tone
  • LED indicator shows the working state

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Keeley True-Bypass Looper and Switcher Guitar Effects Pedal
Keeley True-Bypass Looper and Switcher Guitar Effects Pedal
List Price: $99.00
Sale Price: $79.00
You save: $20.00 (20%)
  Eligible for free shipping!

Features

  • Make an effect or group of effects True-BypassUse as a tuner switch to mute during tuningUse as an effects looper switcher, switch in multiple effects!Operates with or without powerDual LED indicators to let you know what mode you are inResistors added to keep switch pop to a minimumStamped Serial Number

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Donner True Bypass Harmony Effect Pedal, Normal & Tri Chorus
Donner True Bypass Harmony Effect Pedal, Normal & Tri Chorus
Sale Price: $38.99
  Eligible for free shipping!

Features

  • Normal and Tri chorus
  • Tone Lock function and one preset save/recall
  • New generation 32-bit DSP, high performance 24-bit
  • 44.1 kHz AD/DA convert
  • True bypass / Runs on battery or AC power

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