---
product_id: 29839788
title: "3 Leaf Audio Proton V3 Envelope Filter New 2015 Version"
brand: "3leaf audio"
price: "€ 450.26"
currency: EUR
in_stock: false
url: https://www.desertcart.at/products/29839788-3-leaf-audio-proton-v3-envelope-filter-new-2015-version
store_origin: AT
region: Austria
---

# 3 Leaf Audio Proton V3 Envelope Filter New 2015 Version

**Brand:** 3leaf audio
**Price:** € 450.26
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** 3 Leaf Audio Proton V3 Envelope Filter New 2015 Version by 3leaf audio
- **How much does it cost?** € 450.26 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/29839788-3-leaf-audio-proton-v3-envelope-filter-new-2015-version)

## Best For

- 3leaf audio enthusiasts

## Why This Product

- Trusted 3leaf audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

3Leaf Audio Proton v3 Envelope Filter A modern homage to the legendary Mutron III. The Mutron III envelope filter was a staple of 1970's funk and soul music that shaped the sounds of Bootsy Collins, Stevie Wonder and Jerry Garcia among others. But as good as the Mutron sounded, it was not without its problems. It was huge and required a special power supply, and it had a sensitivity control that changed your volume when you kicked it on. Then theres the price originals routinely fetch $500 or more on eBay! The new Proton envelope filter contains the essence of what made the old Mutron sound so good, without all of the drawbacks of the original. Its small, it runs on a standard 9-18v DC power supply (no battery), and it wont change your volume when you kick it on. But most importantly, it sounds FUNKY. With its simple control layout, you can easily dial in the slurpy, wet filter sounds of the original. Set the sensitivity with the GAIN control and the resonance with the PEAK control, and youre good to go! It also features high and low range positions, lowpass and bandpass modes, and a sweep reverse. It has a wide sensitivity range that will drive active or passive instruments, and the filter range is such that it will sound great on guitar, bass, and whatever else you can throw at it. Note: the Proton does not come with a power supply. It is compatible with any standard 9-18v center-negative supply (Boss-style). The 3Leaf Audio Proton Envelope Filter is smooth and funky. The Proton filter is perfect for vintage quack or synthy sweeps. The Proton filter is extremely responsive and smooth. Avoid the eBay markup and get your Mutron on today with the 3Leaf Audio Proton Envelope Filter. The musicians at 3 Leaf Audio always fancied the sound of the Mu-Tron III, but as far as attainability for the modern musician goes, the Mu-Tron was quite out of reach. So the 3 Leaf Audio Proton was born, as a modernized take on the original Mu-Tron III design, ridding it of

## Features

- VERSION 3. Made in the USA!
- Tone knob for fine control over the filter sweep.
- Increased sensitivity range for better compatibility with low-output instruments.
- Phase-correct output for predictable use in blend pedal signal chains.
- Footprint: 64 x 118 mm

## Images

![3 Leaf Audio Proton V3 Envelope Filter New 2015 Version - Image 1](https://images-na.ssl-images-amazon.com/images/I/51ZMWn5rJUL.jpg)
![3 Leaf Audio Proton V3 Envelope Filter New 2015 Version - Image 2](https://images-na.ssl-images-amazon.com/images/I/514nIPpO06L.jpg)

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**Shop now:** [https://www.desertcart.at/products/29839788-3-leaf-audio-proton-v3-envelope-filter-new-2015-version](https://www.desertcart.at/products/29839788-3-leaf-audio-proton-v3-envelope-filter-new-2015-version)

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-04-22*