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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 there’s 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. It’s small, it runs on a standard 9-18v DC power supply (no battery), and it won’t 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 you’re 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 tone suck, volume drop and making the 3 Leaf Audio Proton affordable for musicians everywhere. The 3 Leaf Audio Proton features gain and peak knobs, along with 3 switches for sweep reversal, range, and low or bandpass making your envelope filter experience tweakable as ever, with the ability to bring you the classic slurpy wet tone you've always dreamed of.
NEW VERSION: It has the same sound as the original, but adds a decay knob for fine tuning of the filter's speed. It also utilizes my relay true bypass system for bulletproof switching, and it comes in my new custom-designed steel enclosure.
Showing reviews 1-10 of 14 | Next
Posted by Kevin on 8th Aug 2013
I bought the pedal to use in a jam band to sound like Jerry Garcia. Does that very well! Also useful for funky wah chords. Really easy to get good useful sounds from this little guy. I really like the switch, I had to get used to it because it does not click. This pedal does not make the volume go up or down, nor does it add noise. I have tried it before and after a compressor and both ways worked. Really opens up according to your picking style. Runs on boss power supply. Really can think of nothing wrong with this pedal. Used it at practice last night, I was worried it would be too over the top, but it is very useful and musical. I really don't want to be a guitarist with more pedals than chops, but this pedal is a great addition to even a modest pedal board. I only used an overdrive, comp, volume pedal, and a tuner before. This is the only mod/wah pedal I can see needing. Now that I have this one, I am craving the Wonderlove, 3Leaf Audio is the real deal! Dont worry about the "plastic" jacks. They are very high quality and have not caused any problems from what I have read online.
Posted by Rich on 5th Aug 2013
This is my first envelop filter, finding it very useful for funk type songs where the wah wasn't quite right - Superstition, Brick House, etc. Like the previous reviewers have said -- it's well built, great switching, and very versatile. I would recommend the pedal, but dont have any other filter to compare it to.
Posted by Jim Christaldi on 12th Jun 2013
First of all, I would like to begin with the pedal. I have been using my Boss envelope filter, the T-Wah, for the last 30 years. And though I love my vintage Boss pedals and this one has served me well for all those years, years that saw intensive playing out too, I felt that there must be something better out there. As I do cover a lot of Grateful Dead music, I always felt that the Boss was just falling short of what I needed to TRY to get Jerry's tone better. Well, this pedal is blowing me away, as well as my bandmates! What a difference! As soon as I started to play through it, I was shocked at the huge difference. This pedal has that sound and it just has a much warmer tone altogether. THANK YOU 3 LEAF AUDIO!!!! I had begun to not want to even use the envelope filter, now with this new pedal, I have to force myself NOT to use it too much! I could go on and on, and as I use it more (recently got it), I am sure I will want to do that too!
Now let me talk about Prymaxe . . . I was not aware of this company at all. I started looking at the 3 Leaf Audio site and this company was one of the companies that were listed as carrying the pedal. I tried a few of them, some didn't have the pedal in stock, others had the expected price of $199.00. I tried Prymaxe and a very nice, knowledgeable guy answered the phone (I SUCK with names). Not only did he have it in stock, but he also offered up a discount that no one else was offering. He was very helpful and the pedal was shipped to me VERY fast and well packed. I was impressed with the LARGE assortment of Boutique pedals that these guys have in stock too! Finding this company could be a bad thing for my wallet and a great thing for my sound! Not that there prices are bad (see above), but they have so many damn tempting pedals to dangle in front of me!
i would buy from these guys in a heart beat again and I also now need to see what else 3 Leaf Clover might have in their line to tempt me more and improve my sound.
Thanks again to both 3 Leaf Audio and Prymaxe!!!
Posted by Unknown on 11th Jun 2013
First my reservations before buying the proton
I was always apprehensive about;
1. about an auto wah (I already own RMc3FL WAH) until I met the Proton. The sensitivity knob is really SENSITIVE. Try ans see you will what I mean. Sometime you dont need too much of WAH, just a hint maybe ...but sometime during solos you may want to get funky ....just hammer the strings and you are there. Basically the Proton allows you to encompass those different moods.
2. You could be forgiven if you thought that with so many knobies , that the Proton was had to dial in. I thought the same. But in reality its the easy to dial in the sounds you want. Probably they should have named the knobies better ;). For example in layman terms the Range knob is nothing but a Bright/Boom toggle. Sweep is nothing but Normal/reverse sweep. Think of Decay as you fine tune knob.
Some other things to like about the Proton
Rock solid enclosure
Really voiced well. I could hardly find a bad sound. You can use this as an ALWAYS ON pedal by setting the gain low , and you guitar volume at 7, whenever you are in mood pick hard and bring it on. This setting in conjunction with a highly sensitive OD like the Honeybee really brings euphoric dynamism to your playing .
Does thesis replace a WAH pedal? Answer: No
Does this pedal bring the world of funk to life? Answer: Yes
Is this pedal a one trick pony? Answer: No (As mentioned above you can use it as an always on pedal and explore a brand new world of funk)
If you love wah/funk/filter - A must buy!
Posted by ktorreg (giutarded) on 28th May 2013
Fantastic pedal. World of posibilites. Thanks to 3Leaf Audio for taking the classic Motron and just making it better and finally accessable to the rest of us who didn't have one in the 70's but always wanted one, Well now is the chance.
No pedal board should be without one
Posted by ...in the pocket on 6th Feb 2013
Get your funk on with this extremely well constructed, versatile and attack responsive envelope filter. Say wha?
Posted by Unknown on 18th Jan 2013
Nails the Mutron. Run, don't walk if you are tired of trying to sound like Jerry on Shakedown Street and haven't been able to with any other envelope filter. Also one quarter the size of the Mutron, less than half the price (if you can even find one), and is powered by 9v. Absolutely brilliant.
Posted by Shrederick on 25th Oct 2012
I got this pedal to replace my EHX Qtron + basically for its smaller footprint. I feel that the Proton has a warmer sound than the Qtron and has less overall gain so it is a bit easier to dial in the sound I'm looking for. All in all a well built and sweet sounding pedal.
Posted by HolmeBass on 23rd Oct 2012
I've only had the Proton on my board for a week, and only played two gigs with it, but it was very easy to dial in a basic wet funky "up" filter sound, which held up on gigs very well by itself, with some OD in front, in a "synth" path with octaver > OD > Proton, and with the Proton > fuzz for a high-energy psychedelic jam section of an original song.
Posted by Unknown on 7th Oct 2012
The 3 leaf Proton does all that I could ask of an envelope filter pedal. Sounds great on bass as well as guitar. The switches, pots and housing all have a quality feel.
Showing reviews 1-10 of 14 | Next
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