The NUX NPO-2 Tutti Polyphonic Octave is a compact octave pedal that adds low and high octaves to your signal, with individual controls for each so you can blend them to taste. NUX describes the octave effects as highly musical with extremely low latency, thanks to the company's polyphonic octave algorithm1. It sits in the wider family of Octave & Pitch Pedals.
Modes and controls
Tutti features three unique octave modes: Polyphonic, Bassline, and Momentary. You can quickly switch between them using the top-mounted toggle switch, which keeps mode changes within reach even on a crowded board1.
The low and high octave voices each have their own control, so the amount of each octave added to the input signal is set independently1.
Bypass and power
The pedal provides both Buffered Bypass and True Bypass modes. To select your preferred bypass mode, hold down the footswitch while plugging in the DC power supply1.
Bypass mode is set at power-up: the pedal is switched between Buffered and True Bypass by holding the footswitch while connecting the DC supply, not by a switch on the enclosure1.
Size and placement
The Tutti comes in a compact purple enclosure intended for easy placement on a pedalboard. Pedal of the Day's reviewer summed it up this way1:
"Compact, yes, but don't let the size fool you, this effect will make your tone big and bold with a quickness…"
NUX describes the Tutti as a compact pedal with a purple enclosure, "small, but it produces big, bold sounds," which makes it easy to fit on a crowded board1. Players comparing it with other pitch-shifting options may also come across the NUX Roctary, the company's rotary speaker pedal.
Videos
6StringStanger
Pedal of the Day and NUX
Sergio Ghiotto
Sources (1)
- NUX NPO-2 Tutti Polyphonic Octave, Pedal of the Day, 2026-07-02





