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  Home > AnalogMan Pedals & Modified Effects >

Analog Man Block Logo Envelope Filter Pedal
Analog Man Block Logo Envelope Filter Pedal


 

Sorry we are about SOLD-OUT of this version with the NOS MXR circuit boards. We made up a new board and these will be a normal production pedal soon.
Our Price: $219.00


Availability - time to dispatch:: Currently Unavailable
Product Code: AM-BLOCKENVELOPE

Guitar cables

Add a CBI Ultimate 15 foot Guitar Cable $25 [Add $25.00]Add a great sounding 15 foot long guitar cable, black with straight metal soldered Neutrik ends.
Power Cables for your existing multi-power supply

18" Power Cable for PP2 (one straight and one 90 degree end, unless you specify in comments) $3.50 [Add $3.50]Does not work with our $15 Boss type power supplies, has 2 male ends for use with Voodoo Labs etc

Extra 36" power Cable for PP2 with one 90 degree end $4.50 [Add $4.50]Does not work with our $15 Boss style power supplies, has 2 male ends for use with Voodoo Labs etc
Optional power supplies

Add a Power Supply:
US 120V 9vDC $15 [Add $15.00]- This is a normal 9V Boss type external power supply/adaptor for USA use with 120V AC wall power.

Add a Power Supply:
Euro 240V $15 [Add $15.00]- this is an external power supply/adaptor for use with 220/240V AC to make 9Vdc for the pedal.

Add a Power Supply:
UK 240V $15 [Add $15.00]- this is an external power supply/adapter for use with UK (3 prong) 220/240V AC to make 9Vdc for the pedal.
Customize

Add a knob cover:
Add an MXR style knob cover $1.99 [Add $1.99]- This knob cover fits on the larger of the two versions of MXR style knobs we use on our AM pedals. If you want more than one, you can add them to your shopping cart from the Accessories - Pedal Parts menu.

 
Description
 
Analog Man Block Logo Envelope Filter Pedal, based on 1970's MXR Envelope filter, built into a modern boutique pedal with new up/down toggle and EMPHASIS knob.
Features
In 2017 we finally finished our high-quality circuit board to make more of these, with a better layout and cleaner build than before

We previously made 100 using real New Old Stock (NOS) MXR circuit boards for original sounds, but we added the third knob and toggle switch so you could get more tones. The UP/DOWN toggle allows those Mutron type reverse Wah sounds. The EMPHasis knob allows more or less extreme tones. The new board is the same circuit but should be a higher quality built pedal.

Also we added LED, True bypass, and 9vDC power jack of course.

SIZE : 2 5/16" x 4 5/16", original MXR size 1290 / 1590B enclosure.

Uses normal 9Vdc power or battery, very little power, well under 10mA.

Get your funk on!!

This pedal is not as "synth filtery" sounding as the Mu-Tron, maybe more like an auto wah.

Below is one original MXR along with three of our first versions in various stages of build:



As usual, we do a little tweaking to make the pedal more usable. We put a blue trimpot inside on the circuit board, so you can adjust the envelope for different guitars.
Turned all the way up (clockwise) it's exactly the same as the old MXR and works great with weaker pickups like single coils. We normally set it turned down a bit, vertical, to work better for humbuckers or allow a deeper sound with single coils. You can turn it down further to get lower frequencies, even sort of "sub-bass" frequencies that are cool on bass guitar!


We interviewed Keith Barr (RIP), president and designer for MXR back in the day for our book, and he said this pedal was his favorite, most special design. He said:

That’s the one I really wanted people to make comments about. The objective for the Envelope Filter was to produce a box that did it all with digital circuitry (logic chips, used in a non-digital way - AM).

And I gotta say, of all the boxes, I think from a design perspective, that one’s the coolest. That’s something that somebody ought to write a little article about and say, “Look at how cool this design is.”

Most people would say, okay you want to make a filter of some sort, and you want it to be sweepable; okay you need some voltage controlled amplifiers, 3080s or something like that; or maybe FETs, or maybe optoisolators or something. Yeah okay, we’ll settle down and make our little filter, and we’ll make a little detector, and we’ll make the detector drive the filter control voltage, and then we’re done. No, no, no, I wanted to do it without using any of those things... a whole new way of doing it, completely off the wall. That was the challenge, and I was so pleased with the result because it just worked beautifully. Take a look at the schematic, and if you don’t get the electronics, hand it to somebody you think does and ask them what’s going on. That is a cool box. You can also put in your book, I’m really let down that nobody who gets electricity that ever looked at that schematic ever thought, “Wow that’s really cool, I gotta go call Keith and tell him so.” (Laughs.)

Average Customer Review: 5 of 5 Total Reviews: 7 Write a review.

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  0 of 0 people found the following review helpful:
 
Envelope filter April 21, 2016
Reviewer: pete jones from nashville, TN United States  
Thanks Mike! Envelope filter sounds incredible! I'm a tru-Tron guy, and I gotta say, I can get my Garcia tones, yet overall it's not as finicky, it's just more consistent!(smaller:). I highly recommend it! Customer service was as good as it gets! Thanks again, not my last analog man pedal.

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  0 of 0 people found the following review helpful:
 
Finally! August 19, 2015
Reviewer: Carl from Brooklyn, NY United States  
The AM EF sounds fantastic!  It does I want from an EF--quacks, gulps, wah-like sounds, sharp filter flares and smooth, not-quite-open warbles.  You can set it for your best Jerry Garcia impersonation, or a dozen other cool sounds.  Heck, I even like the filter up settings, which I usually find useless.

Sound aside, dynamics are where this pedal REALLY shines.  Other EF's I've used have proven finicky and difficult to manage, but not this one. Chords, single notes, high strings, low strings--the AM EF handles them all, triggering evenly without making you adjust your settings.

All-in-all, this pedal more than lived-up to my hopes.  It has the sounds and it makes playing music EASY.  No fighting with the pedal or fiddling with the settings.  The AM EF lets you control the sound / change playing styles as you go, rather than making you "play the pedal" so much.  All I can say is "Finally!"  Now if I can just get out of work so I can go play some more guitar...

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  0 of 0 people found the following review helpful:
 
Incredible work! August 5, 2015
Reviewer: Max L from Parkland, FL United States  
Hands down, the BEST envelope filter I've ever played through. I've had Q-Trons, Neutrinos, and a few others, and this one takes the cake. Such a simple, yet versatile pedal. Seriously, job well done! Thanks, Analog.Man!

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  0 of 0 people found the following review helpful:
 
Nailed it. Better than the original! May 26, 2015
Reviewer: Dennis B from Eatontown, NJ United States  
I just wanted to say you completely nailed it on the MXR EF! All the good parts of my vintage unit are there and none of the bad parts. Switching back and forth between the original MXR and the AM confirms Mike definitely fixed the volume drop and dulled tone issue of the original perfectly. It’s got more treble and plenty of volume, seems to be unity gain with the bypassed signal nicely. This will definitely replace the 3 pedal set up I am using now for that one effect (LS-2 loop, MXR, + Dano EQ). Now ab’ing with the MXR + EQ I can get it almost exact. I really love the addition of the internal trimmer to adjust for a more bassy or treble sound, I was able to tweak for my humbuckers by rolling back the trim pot about 25% and get more low frequency response.   The trimpot works exactly as stated. Emphasis knob is a very handy addition as well. I’m so thrilled I am able to replace the three pedals on my board to get the sound you achieved in one awesome pedal. Well done!

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  0 of 0 people found the following review helpful:
 
THE Ultimate Envelope Filter! May 19, 2015
Reviewer: Eddyrox/Mike from Newport Beach, CA  
OK, like the others, I've owned several EF's, including the Guyatone WR5 (awesome synth-"quakery"), the Xotic Robo-talk 2, the Pigtronix EP2. I've found that the RT2 and EP2 to work well, but require a bit of tweaking to coax out that desired Thomas Organ/McCoy quack. IMHO, the RT2 and EP2, while super versatile, are naturally voiced in the higher EQ freq. spectrum, and require the right p/up's and guitar wood to coax the correct degree of "funkiness" (although the EP2 has it in there).

The AM EF is voiced, right out of the box, to have that 70's funk tone - quack and wah. No tweaking necessary! I can riff on Billy Jean to Love Rollercoaster to Bill Withers' "use me", and it's all good.

I've found the only pedal that quacks like my Fulltone Clyde Deluxe, and a suitable companion to my Guyatone WR5.

Great job Mike & team!!

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