Three modes: Reduction, Gate and Mute
The NS-1X offers three operation modes, selected with the Mode switch, so you can match the suppression behavior to your rig and playing style12.
- Reduction mode is for general noise suppression. Boss says it provides gentle suppression that works with most instruments and playing styles, with natural, noise-free note decay on all pickup types, including low-output single coils1. Delicious Audio describes it as more subtle than Gate mode, eliminating errant noise while retaining maximum natural note decay and tone5.
- Gate mode is aimed at high-gain players. It instantly mutes the sound when no signal is present, giving a hard, fast cutoff rather than a gradual fade2.
- Mute mode turns the pedal's bypass state into a convenient mute switch, useful for instrument changes, silent tuning, and set breaks2.
The practical difference: Reduction mode eases the signal down as notes decay, which suits most playing, while Gate mode behaves like a traditional hard gate for tight, aggressive high-gain styles. Mute mode is not about noise between notes at all, it is a utility function for silence between songs52.
The controls
The front panel carries a Mode switch plus knobs for Damp, Threshold and Decay, and a Reduction Indicator that displays the current noise suppression status14.
| Control | What it does |
|---|---|
| Mode | Selects Gate, Reduction or Mute operation4 |
| Damp | Controls the maximum amount of noise reduction. Higher settings make the effect stronger and clearer; lower settings reduce its strength, which may give more natural results with some playing styles1 |
| Threshold | Determines the level where suppression begins. In Reduction mode, start at the lowest setting and turn clockwise until the noise disappears. In Gate mode, start at the highest setting and turn down until the attack response feels right1 |
| Decay | Sets how the suppressed signal recovers as notes fade4 |
| Reduction Indicator | Displays the current noise suppression status1 |
Guitar Pedal X's review lists the controls as Damp (labeled MDP Refine), Threshold, Decay, and a Mode switch for Gate, Reduction and Mute4.
Boss's own setup advice is worth following: the Threshold knob works in opposite directions depending on mode, so the starting point for Reduction (lowest, then up) is different from Gate (highest, then down)1.
Power, connections and placement
The NS-1X runs on a 9V DC power supply or a 9V battery, drawing 60mA6. Along with standard input and output connectors, it features a send/return loop3, which lets you place noisy drives and gain pedals inside the loop while the NS-1X itself sits at a cleaner point in your chain, the same approach the NS-2 used.
The send/return loop is the key to getting the most from the pedal: put your noisiest gain pedals in the loop so the NS-1X can measure and tame them directly, rather than gating the whole board after the fact.
Where it came from
What reviewers said
GuitarPlayer's best noise gate pedals guide, updated November 2025, names the NS-1X its best overall pick, citing its power requirements of 9V DC, 60mA, and battery operation alongside its control set6. Guitar Pedal X included it in a roundup of 15 of the best compact-format noise gates at $2194.
"Powered by advanced BOSS MDP technology, the NS-1X intelligently silences noise"
At launch it was available at authorized US Boss retailers for $199.993; Guitar Pedal X later listed it at $219 in 20254.
Videos
Pete Thorn
BOSSchannel
Leon Todd
Questions
Is the Boss NS-1X analog or digital?
It is digital. The NS-1X is an all-digital circuit built on Boss MDP (Multi-Dimensional Processing) technology, which analyzes the input signal in real time at multiple levels to decide how much suppression to apply. This is the main technical difference from the analog Boss NS-2 it replaced.
Can the NS-1X run on a battery?
Yes. Alongside a 9V DC power supply, the NS-1X accepts a 9V battery, so it can run without a pedalboard power supply. Current draw is 60mA, which is modest but worth noting if you share a daisy chain with hungrier digital pedals.
What does Mute mode do on the NS-1X?
Mute mode turns the pedal's bypass state into a mute switch. With the pedal disengaged, your signal is silenced, which is useful for instrument changes, silent tuning between songs, and set breaks. It is one of three modes, alongside Reduction and Gate.
How much current does the Boss NS-1X draw?
The NS-1X draws 60mA at 9V DC. That is low enough for most isolated power supplies and even some daisy chains, though as a digital pedal it is cleaner to keep it on an isolated output.
Does the NS-1X work with bass?
Yes. Boss describes it as a noise suppressor and gate for guitar, bass, and other electronic musical instruments, and says it silences noise without affecting the natural tone and playing feel of your guitar or bass.
How long is the warranty on the Boss NS-1X?
The NS-1X carries the standard Boss five-year warranty, the same coverage Boss applies across its pedal line.
Sources (6)
- BOSS - NS-1X | Noise Suppressor, BOSS (boss.info)
- BOSS NS-1X Noise Suppressor, Delicious Audio, 2023-11-08
- New Gear: BOSS NS-1X Noise Suppressor Pedal, Bass Musician Magazine, 2023-09-15
- Guitar Pedal X, Guitar Pedal X, 2025-05-26
- The Complete Guide to Noise Gate and Suppressor Pedals, BOSS (articles.boss.info), 2023-11-30
- Best noise gate pedals: control your tone, GuitarPlayer (www.guitarplayer.com), 2024-09-24
