BOSS DD-3 ECHO Echo echo mod

I really don’t have a love for BOSS pedals. I don’t like them, actually. Don’t get me wrong, they usually do what they’re intended to do, come fairly cheap, and are easily replaceable. They also represent a time in the music world when everything started to become digitized, compact, and lose it’s soul. To me, BOSS Pedals are to music gear as Phil Collins taking over vocals is to Genesis.

That said, there’s a time and place for everything. I found a BOSS DD3 at a show. No one claimed it. So, on the plus side, it was free. It’s a solid enough digital delay. Heartless, but it gets the job done and has good delay time. But it ain’t analog.

Boss DD-3 Digital Delay Pedal

People harp on and on about the analog sound. What is analog sound? It’s the sound of error, not exactness. It’s the warm pops and hisses on vinyl, it’s the warble and clipping on a tape, and it’s the way a delay device further muddies the sound of each repeated echo. That’s something people pay a lot of big bucks for when they pick up an old 70s tape echo machine or even an early eighties delay that uses BBD chips. It’s analog, it has error, and in some ways that’s a nicer sound to most human ears. Of course, you don’t get the extended delay times of a digital delay like the DD3, but you can fake the analog and keep the digital.

This is a common mod, but keep reading, because I came up with what I think is a nice twist for it. And it’s really not hard to do, but you can get charged some bucks by boutique pedal modders for such a simple addition to your repertoire.

First, you got to get the guts out. You’ll have to unsolder the electronic switch that’s underneath the stomp area next to the battery compartment. There’s a black and purple wire to undo, and it doesn’t matter which lug you reconnect them to. That’s the BOSS on off switch system. Inside the DD3 (and actually this works on a lot of other digital delay pedals) you need to locate lugs 1 and 3 on the echo level, the knob that effects the volume output of the echoes playing over your signal. This is where the magic will happen.

Boss DD3 delay lugs

On these two lugs, you can solder the legs of a capacitor which acts as a low pass filter. Basically, it muddies each echo further and further. Unfortunately, you’ll also lose the capacity for your digital delay to repeat infinitely. The more highs it cuts, the less delays you get. After some experimentation with several recommended measurements from message boards and Brian Wampler’s excellent book on Pedal Mods, I settled on a 0.47 uF cap as the best to give a warm analog sound and give me enough delays.

I didn’t stop there, though… I was just messing a bit and also tried placing a 1k resistor over the same lugs. Weird, I got a high pass filter that took out all the low end of the signal with each repeat. It was the total opposite of what I’d intended to do in the first place, but it sounded awesome! Each echo sounded icier than the last. I decided I needed both these mods AND the original settings, so I would place them all on a switch.

Here’s audio of my horrid guitar playing of a great eighties song to hear each of the new delay settings… first is stock, then the fake analog tone, and finally the icy tone:


I used an on-off-on DPDT switch I order from Mouser Electronics, or get one at yer local electronics store run by some old folks that smells slightly of cat pee. Basically, DPDT (double pull double throw) means you got two switches controlled by one toggle.

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In my case, I connected the wires from the Echo Level pot to the central lugs for an off position, and the switch would bridge them either with the capacitor or the resistor to form the mod. Confused? Me too… it’s hard to explain with text.

photo-8 copy

Once you’ve got the electronics all sorted out, you just gotta redo the box and put it all back together. I had to drill a hole for the new switch. This is the kind of area I wish I was smarter and had a drill press for, but I managed to free hand it. Just remember to keep using some WD-40 to lubricate your drills, or you’ll dull them.


I put the pedal back together, and though it was tight, it all fit in there. While I was in the guts, I replaced the standard BOSS red LED with a blue one, because it fit the color scheme nicely, along with a nice blue topper for the metal switch. Nobody except me will see it, but it’s these little touches that make me smile.


Now I got my sweet, sweet analog emulation delay pedal. I gigged on this one for awhile with Ludicra for one part in one song (stage real estate be damned). It’s since been replaced on my board by an ACTUAL analog delay (a modded DOD FX90… more on that another time) but it did serve me well.

Below you can watch a video from Ludicra’s last show in Portland on 1-1-11 where I engage the pedal at the end, using the ice delay setting, for a nice outro on the Ludicra song “Veils.” The icier echoes cut through nicely with the new mod over my otherwise sludgy tone. Slight tangent, as of this writing, I still have copies of the poster I did for this show for sale in my website storefront. Buy one, dickhead.

Up the analog, but if you can’t afford it, this is a good way to fake it and get more use out of a relatively cheap delay pedal.

Herr Doktor Ross Sewage Abwasser
And I ran, I ran so far away…

12 thoughts on “BOSS DD-3 ECHO Echo echo mod

  1. There's another, similar (i think) mod you can do where you install some extra in/out jacks (instead of capacitors or resistors), and you can actually have the delayed signal running through another external effects pedal, so each repetition is increasingly effected by the pedal hooked up to the dd-3. i'm curious how this would sound hooked up to an octave pedal… would each repetition get higher/lower?

    i have 2 analog delay pedals, but all the crazy mods you can do to the boss pedals makes me want to get one just to see how much i can fuck with it!

  2. Keeley Electronics sells that effects loop mod if you send in your older DD3 pedal, but I haven't figured out how to do it. I didn't really see it necessary to my set up, but it does seem interesting. I'm pretty sure what you describe with the octave pedal would work just that way… each repeat is looped back through the secondary effect.

    You can buy the mod for your old DD3 on their website.

  3. You have an error in the first paragraph. The capacitor value is incorrectly stated as 47 microfarads. That should be 0.47 micro farads. And, by putting the zero before the decimal, you lessen the possibility that someone will miss the decimal entirely.

    1. Good catch! I suppose you could use a 47 uF capacitor, but it would sound like shit balls and you'd have to make room for the damn thing. You're correct that I used a 0.47 uF cap. I'll make the correction.

  4. hey dok, if'n ya take the input to that delay knob and run that to a simple buffer with a switching jack (so when ya unplug the external effect the delay works normally) and repeat with a second buffer coming from a second jack to the input of the pot, you'll have an effects loop that you could mess with. i mean, a single dual opamp on a hunk of vero would probably work fine.
    i'd imagine it could work on either the mix or the repeat knob.
    nice blog man
    rock on

  5. Hopefully this is still active but in referring to the wires from the "echo level pot", where exactly are those wires/what are they near?

    1. Those are the green and yellow wires that I soldered in on the 3rd picture down from the top of the article.

  6. Dear,
    I would like to mod my dd3 2015. The foundation is smaller than old one. I am not sure where should I solder yellow code… if you know it please let me know.

    1. They yellow code? I’m assuming you mean “wire”

      Basically, when adding any cap or resistor for the mod, you need to solder the legs between the two outer lugs of the “echo level” potentiometer. Any contact point on the PCB board works, as long as it is a continuous copper trace that leads back to those lugs.

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