Keeley Neutrino V2 Envelope Filter

Keeley Neutrino V2 Envelope Filter



We will ship to you as soon as we receive stock

Keeley Neutrino V2 Envelope Filter

Free delivery on this product

Retail Finance
Click and Collect

Are you looking for a boutique-style, premium-grade auto wah to add to your pedalboard? Then check out the awesome Keeley Neutrino V2 Envelope Filter!

A Funky, Tripped Out Envelope Filter

With the Keeley Neutrino V2 you get an amazingly toneful and compact form of the classic opto-coupler envelope filter.

This pedal takes your guitar signal and creates an "auto-wah" effect based on your playing dynamics - in other words, the harder you play the strings, the more pronounced the wah!

Keeley Neutrino V2 Envelope Filter Key Features

  • Envelope Filter and Auto-Wah for guitar, bass and keyboard
  • Peak Control: Sets how much “quack” there is, or how smooth you roll
  • Filter Selector: lets you choose between 3 types of filters: High,  Low, and Band Pass.
  • Range Switch: HI or LO.
  • Direction Switch: Up or Down
  • True-Bypass, 9 VDC, 25 mA, 100% analog and made in the USA.

Opto-Coupler Based

All the best envelope filters are based around opto-couplers, as they generate a much more organic sounding effect, with the opto-couplers used for the Neutrino V2 being particularly smooth, resulting in an amazing vowel-like tone.

Whether you're wanting a light auto-wah effect for a jam session, or a full-on funkadelic explosion of sound, this pedal is where it's at.

Intuitive Controls

With controls for Gain and Peak, alongside a Filter Band Selector to choose between Low, Both, and High settings, getting the sound you want couldn't be easier.

In addition to this there's also a toggle switch that allows you to adjust the operating the range of the variable filter - Lo for low frequencies, Hi for high frequencies.

Top Notch Construction

In true Robert Keeley fashion, the Neutrino V2 is crafted using some seriously high-quality components.

This includes a power supply voltage-doubler (granting an incredible amount of headroom), the afore-mentioned opto-couplers, and a rugged outer-chassis that ensure it'll last for many years to come.

More Information
Manufacturer Keeley
SKU 307340
Shipping Weight (kg) 1.200000
Effects Envelope Filter
Colour "
Warranty 2 Years


We have a wide range of Delivery Options available, depending on the value of your parcel and budget. Select from our 2-3 Day Saver Service or our Next Working Day options at the Checkout.
This will include a text or email on the day of delivery giving you an exact hour window of when your gear will be with you, and the drivers name - just so you know when to turn the volume down!

  • Free Delivery Available on Selected Products
  • Weekend UK Mainland Delivery (Saturday-Sunday): £19.99
  • Small Items (Under 750g) Small items will be delivered by Royal Mail starting from 99p
  • Heavy Items (Over 30kg): Pallet Service Doorstep Delivery £65

For heavy items, courier details, out of stock products, out of area postcodes or international deliveries see our full Delivery info here.


Rather not wait in for the delivery? Don’t worry, we’ve got you…In Stock items can be ordered and paid for in-advance Online via our Click & Collect service. As long as if it's in stock at your chosen branch, you can collect the item within the hour.

Click here for more about our local Click & Collect Service.


If you and your item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.

*Please note: We cannot accept returns of microphones, any in-ear earphones, monitors, orchestral instruments with mouthpieces and any other items that touch your mouth, nose or inner ear if you have removed the hygienic packaging.

Click here for more information on Returns at PMT.

Online Orders

If you and your new item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT Experts either by phone or email to return your item or organise an exchange for something more suitable.

Store Orders

If you've changed your mind about something you bought in-store, bring it back within 14 days of purchase and we'll be happy to exchange it for another product, a gift card or store credit.