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.



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.

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True-Bypass Looper Effect Pedal Guitar Effect Pedal Looper Switch true bypass guitar pedal Mini Aluminum Loop switch
True-Bypass Looper Effect Pedal Guitar Effect Pedal Looper Switch true bypass guitar pedal Mini Aluminum Loop switch
Sale Price: $16.99
  Eligible for free shipping!

Features

  • Mini True-Bypass Looper

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Donner DT-1 Chromatic Guitar Pedal Tuner True Bypass
Donner DT-1 Chromatic Guitar Pedal Tuner True Bypass
List Price: $35.87
Sale Price: $19.99
You save: $15.88 (44%)
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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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Donner Blues Drive Classical Electronic Vintage Overdrive Effect Pedal True Bypass Warm/Hot Modes
Donner Blues Drive Classical Electronic Vintage Overdrive Effect Pedal True Bypass Warm/Hot Modes
List Price: $42.77
Sale Price: $30.99
You save: $11.78 (28%)
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Features

  • Two models: Reproducing the classical electronic overdrive with plump, warm and sweet effect; Enlarging the output to get the tightened electromagnetical sound
  • The whole item is made of aluminum alloy. Classic, stable and strong
  • True bypass provides transparent tone
  • LED indicator shows the working state
  • Small, light weight and exquisite. Size: 9.5*4.8*4.4mm

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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: $32.88
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Features

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

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Electric Guitar 3PDT Effects Stomp Foot Pedal Switch True Bypass with Solder Terminals Pack of 2
Electric Guitar 3PDT Effects Stomp Foot Pedal Switch True Bypass with Solder Terminals Pack of 2
Sale Price: $6.33
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Features

  • The item can be used to rewire vintage pedals or effects boxes
  • The third pole can be wired to control an LED status light or other custom function.
  • It's also a very tough switch that will last a very long time

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Keeley True-Bypass Looper and Switcher Guitar Effects Pedal
Keeley True-Bypass Looper and Switcher Guitar Effects Pedal
Sale Price: $99.00
  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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Keeley KLOOP True Bypass Looper
Keeley KLOOP True Bypass Looper
Sale Price: $99.00
  Eligible for free shipping!

Features

  • This is an incredibly small true-bypass looper box from Keeley Electronics!
  • Make any effect True-Bypass!
  • The True Bypass Looper works with or without power
  • You can use it as a multiple effects switcher and add several effects in a chain and then switch them all on at once
  • You can also use it as a tuner mute switch. Plug a tuner in this box and not only prevent the tuner from draining away your tone, but tune in silence!

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Radial BigShot I/O True Bypass Selector Switch
Radial BigShot I/O True Bypass Selector Switch
List Price: $100.00
Sale Price: $89.99
You save: $10.01 (10%)
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Features

  • Toggle two instruments with single foot stompAdjustable volume control to match levelsSeparate tuner output and mute switchCompact and rugged for pedalboardsLoad compensation for long cables

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New True-Bypass Looper Effect Pedal Guitar Effect Pedal Looper Switcher true bypass guitar pedal Light green dual Loop switch
New True-Bypass Looper Effect Pedal Guitar Effect Pedal Looper Switcher true bypass guitar pedal Light green dual Loop switch
Sale Price: $24.99
  Eligible for free shipping!

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Estone 9-pin 3pdt Guitar Effects Pedal Box Stomp Foot Metal Switch True Bypass New
Estone 9-pin 3pdt Guitar Effects Pedal Box Stomp Foot Metal Switch True Bypass New
Sale Price: $4.76
  Eligible for free shipping!

Features

  • Only sold by Heroneo.Photo taken by Heroneo. 100% Brand new and high quality
  • The item can be used to rewire vintage pedals or effects boxes
  • For unbuffered bypassing/true bypass of the effect circuit without coloring the tone of the instrument or other components in the signal chain.
  • The third pole can be wired to control an LED status light or other custom function.
  • There are a total of 9 lugs on each switch, three per pole.There are a total of 9 lugs on each switch, three per pole.

Reviews



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