Boss NS-2 Noise Suppressor pedal in white and black finish.

I bought this pedal and have never used it. It has not even been plugged in by me. Because I have not tested it myself before listing, it is sold as photographed and described.

The NS-2 is an analog noise-suppression pedal designed for electric guitar and bass. It reduces unwanted hum, hiss, buzz, and noise while preserving the instrument’s natural attack, dynamics, and note decay. Boss uses a voltage-controlled amplifier and high-speed envelope-detection circuitry to distinguish the musical signal from background noise more smoothly than a simple hard-closing noise gate.

The pedal can be connected conventionally between a guitar or pedal chain and an amplifier, or its Send and Return loop can be used to isolate noisy gain pedals such as overdrives, distortions, fuzzes, and preamps. In this configuration, the NS-2 monitors the clean input signal separately while suppressing noise created by the effects placed inside the loop.

The Threshold control determines the signal level at which noise reduction begins. The Decay control adjusts how gradually the sound fades after falling below the threshold, allowing the response to be set from tight and abrupt to smoother and more natural.

The Mode control provides two operating modes:

• Reduction: the footswitch turns noise suppression on or off.
• Mute: noise suppression remains active, while pressing the footswitch completely mutes the output for tuning, instrument changes, breaks, or emergency feedback control.

The pedal also has a 9V DC output. When the NS-2 is powered with a compatible Boss PSA-series adapter, the DC output can distribute power to additional compatible pedals using an optional Boss PCS-20A parallel cable. The DC output does not operate when the NS-2 is powered only by a battery.

The pedal is in excellent cosmetic condition overall. The white enclosure, black control panel, graphics, knobs, LED lenses, pedal switch, input and output sockets, Send and Return sockets, power sockets, baseplate, serial-number label, and battery compartment all appear intact.

There is no Velcro or pedalboard adhesive attached to the underside. Some light dust, extremely small surface marks, or minor storage and handling signs may be visible under direct light.

The original Boss box is included. The identification code I8K1825 appears on both the pedal and the box. The box presents well overall, with some light storage wear, small surface marks, and minor edge or corner wear.

Condition

• Excellent used condition
• Bought by me and never used
• Never plugged in by me
• Not freshly tested before listing
• Functionality can be confirmed before shipping if required
• No pedalboard use
• No Velcro or adhesive attached
• White enclosure presents exceptionally well overall
• Minor dust or extremely light storage / handling signs may be visible
• Front graphics and control labels remain clear and intact
• Threshold, Decay, and Mode controls appear intact
• Check / Mute and Reduction LED lenses appear intact
• Pedal switch and retaining thumbscrew appear intact
• Input, Output, Send, and Return sockets appear intact
• DC Input and 9V DC Output sockets appear intact
• Bottom label and serial-number label are intact
• Original box included
• Matching identification code I8K1825 appears on the pedal and box
• Original box has light storage and handling wear
• No obvious broken or missing pedal components visible

Specifications

• Brand: Boss
• Model: NS-2 Noise Suppressor
• Effect Type: Analog noise suppressor / noise reduction / mute pedal
• Finish: White with black and grey graphics
• Reverb Model Era: 2015–2021 silver-label version
• Made In: Taiwan
• Serial Number: I8K1825
• Pedal Format: Standard Boss compact pedal
• Circuit Type: Analog VCA noise suppression with high-speed envelope detection
• Main Function: Reduces unwanted hum, hiss, buzz, and high-gain pedal noise
• Intended Instruments: Electric guitar and bass
• Controls: Threshold, Decay, Mode
• Threshold Control: Sets the signal level at which noise suppression begins
• Decay Control: Sets how long the signal takes to fade after falling below the threshold
• Mode Control: Selects Reduction or Mute operation
• Reduction Mode: Footswitch turns noise suppression on or off
• Mute Mode: Noise suppression remains active and the footswitch mutes the output
• Send / Return Loop: Allows noisy effects to be isolated inside the suppression loop
• Indicator 1: Check / Mute LED, also functions as a battery-status indicator
• Indicator 2: Reduction LED shows when noise suppression is operating
• Bypass: Buffered bypass
• Nominal Input Level: -20 dBu
• Input Impedance: 1 MΩ
• Nominal Output Level: -20 dBu
• Output Impedance: 1 kΩ
• Recommended Load Impedance: 10 kΩ or greater
• Input: 1/4" mono input jack
• Output: 1/4" mono output jack
• Send: 1/4" effects-loop send jack
• Return: 1/4" effects-loop return jack
• DC Input: Compatible Boss PSA-series adapter
• DC Output: 9V output for powering compatible additional pedals
• DC Output Requirement: Requires an external PSA-series adapter
• Optional Power Cable: Boss PCS-20A parallel DC cable
• Power: 9V battery or compatible 9V DC adapter
• Current Draw: 25 mA according to the current Boss specification
• Approximate Dimensions: 73 × 129 × 59 mm
• Approximate Weight: 415 g including battery
• Construction: Metal Boss compact-pedal enclosure

Included

• Boss NS-2 Noise Suppressor pedal
• Original Boss retail box
• No external power supply included
• No parallel DC power cable included
• No 9V battery included

Shipping

The pedal will be carefully packed in protective packing material inside an outer shipping box included in the item or shipping price.

Shipping will be via tracked courier service depending on destination, price, parcel size, and insurance availability. Tracking will be provided after dispatch.

International buyers are responsible for all import duties, VAT, customs fees, tariffs, brokerage / handling fees, and any other local taxes or charges required by the destination country. These costs are not included in the item price or shipping price.

Shipping outside Europe may be possible by prior agreement. Please contact me before purchasing for an exact insured courier quote.