Ambilight sensor, Display, Footswitch – TC Electronic PolyTune 2 User Manual
Page 8: Audio output, Audio input, Inputs, outputs, controls

Inputs, outputs, controls
PolyTune 2 English Manual Version 2.1 6
Inputs, outputs, controls
ctd.
6.
Audio input
Connect your instrument to the IN jack on the 
right side of the pedal.
The audio input of this pedal is a standard ¼” 
jack (mono/TS).
When you connect your instrument to the audio 
input, the following information will be displayed:
– Standard (“STD”) or Drop D tuning mode
– the currently selected display mode 
(Needle / Strobe, Guitar / Bass)
– the currently selected tuning mode
– the reference pitch.
 
For best results, place PolyTune 2 in your signal 
chain 
before
your drive, distortion and vibrato
pedals. A distorted or modulated signal is harder 
to analyze.
If the pedal runs on battery power, we recom-
mend removing your instrument from the audio 
input to preserve battery power when you don’t 
play.
7.
Audio output
Connect the OUT jack of PolyTune 2 to the input 
jack of the next device in the signal chain.
The audio output of this pedal is a standard ¼” 
jack (mono/TS).
8.
Footswitch
To turn the tuner on or off, just tap the footswitch.
Notes regarding tuning
and signal output
– When the tuner is active, the output will auto-
matically be muted for silent tuning.
– When the tuner is active and no signal is de-
tected, four red LEDs will light on the bottom 
of the display, indicating that PolyTune 2 is 
ready for tuning.
– PolyTune 2 features a true bypass circuit that
leaves your beloved tone unaltered when the 
tuner is bypassed.
9.
Display
The LEDs of the PolyTune 2 display are extremely 
bright; ensuring a clear readout even in broad 
daylight.
The various display modes are explained in the 
following section of this manual (“21st century 
tuning: How to use PolyTune 2”).
10.
Ambilight sensor
In the lower right corner of the display is a so-
called ambilight sensor. It detects the strength of 
the surrounding light and automatically adjusts 
the display brightness accordingly. This ensures 
you can see and correct your instrument’s tuning 
under all conditions. This feature even extends 
battery life by reducing display brightness to 
what is required in a given situation.
