I'm just a beginner at building pedals and I have a Boss DS-1 sitting at home that I've been thinking I should modify.
Anybody know of any good mods for the DS-1 that I can do myself?
I read an article by Brian Wampler and he has a couple mods for the DS-1 in that article (JCM Marshal, Modern, and Vintage...I think)...anyway, I'm not sure about any of those because some of the comments after the article were saying there were issues with some of the mods or they didn't work right (could have just been the person screwing it up too!). If anyone has experinece with any of these "Wampler Mods" I'd like to hear which one sounds the best overall.
Thanks
Here's the JCM 800 mod with the "tons of gain" mod as well. http://www.youtube.com/watch?v=aKSv9W0IXgA
I also have a DS-1 with the JCM800 mod substituting an LED for the 1n4001. I love them both.
The DS-1 is so cheap (I see them on CL for around 20-30) that you could buy a few and try all the mods.
Wampler does great stuff.
Thanks.....I think I'm going to do the JCM mod too! It seems to be the mod with the best reviews!
Here's a link to Keeley's mods:
http://www.robertkeeley.com/audio6l6/dstech.html (http://www.robertkeeley.com/audio6l6/dstech.html)
I did the JCM mod. Sounds much better to the stock unit. Well at least to my ears.
When I was thinking of doing this I found a great youtube clip where a guy had all three modded units lined up and was testing each of them out. I'll see if I can find it again.
Quote from: nomorebetts on February 22, 2011, 09:52:04 PM
I did the JCM mod. Sounds much better to the stock unit. Well at least to my ears.
When I was thinking of doing this I found a great youtube clip where a guy had all three modded units lined up and was testing each of them out. I'll see if I can find it again.
Did you do the gain mod as well?
try modding it jcm800 mod its the best! and tons of gain! its better it you use good components to it! for 1uf it think i like Electrolytic rather than metalfilm its much crunchy! and resitor is metalfilm for less noise and smooth sound:D try to change the opamp to OPA2134 its the beast!
Put this mod on the list of things to do. as if the list wasnt long enough lol
Quote from: rousejeremy on February 22, 2011, 10:39:45 PM
Quote from: nomorebetts on February 22, 2011, 09:52:04 PM
I did the JCM mod. Sounds much better to the stock unit. Well at least to my ears.
When I was thinking of doing this I found a great youtube clip where a guy had all three modded units lined up and was testing each of them out. I'll see if I can find it again.
Did you do the gain mod as well?
No I didn't do the tons of gain mod... but I'm thinking I might have to crack it open again after listening to that!
Here is the you tube vid I was referring to:
http://www.youtube.com/watch?v=QmARgeZPTN4
He lines up all three mods and tries em out.
I've done the Keely Ultra/All Seeing Eye mods to my DS-1 and they're not too bad. I want to try the "Snip-snip" mod where you remove both diodes. Should see if I can't work out how to wire a toggle switch for "both/one/none" settings. Can't be too hard - any suggestions.
Quote from: Willybomb on February 24, 2011, 08:13:01 AM
I've done the Keely Ultra/All Seeing Eye mods to my DS-1 and they're not too bad. I want to try the "Snip-snip" mod where you remove both diodes. Should see if I can't work out how to wire a toggle switch for "both/one/none" settings. Can't be too hard - any suggestions.
Removing the diodes will give you an increase in volume. How it sounds as a distortion effect will depend on whether you like how the op amp sounds when it's driven to clip.
A both/one/none mod will be easy with a 3 position ON/OFF/ON switch and an extra diode. I guess that would make it a one/none/both, or both/none/one mod. I've tried single diode clipping and it's always been too subtle for me. But try it and tell us what you come up with.
QuoteA both/one/none mod will be easy with a 3 position ON/OFF/ON switch and an extra diode. I guess that would make it a one/none/both, or both/none/one mod. I've tried single diode clipping and it's always been too subtle for me. But try it and tell us what you come up with.
I'm having trouble visualising the wiring on that... can you give me a hint?
Quote from: rousejeremy on February 22, 2011, 02:04:16 PM
Here's the JCM 800 mod with the "tons of gain" mod as well. http://www.youtube.com/watch?v=aKSv9W0IXgA
I also have a DS-1 with the JCM800 mod substituting an LED for the 1n4001. I love them both.
The DS-1 is so cheap (I see them on CL for around 20-30) that you could buy a few and try all the mods.
Wampler does great stuff.
Hey Jeremy.Do you have link,or something you can P.M. me for the "Tons of Gain" Mod?Thanks!-soupbone
Change R13 to 1k and C8 to 1uF
I recently tried the Phlat mod with Wamplers JCM mods. Amazing.
http://www.diystompboxes.com/DIYFiles/up/Build_Your_Own_DS-1_Distortion.pdf
Quote from: rousejeremy on September 13, 2011, 11:34:28 AM
I recently tried the Phlat mod with Wamplers JCM mods. Amazing.
http://www.diystompboxes.com/DIYFiles/up/Build_Your_Own_DS-1_Distortion.pdf
Right on!Thanks for the info!
Quote from: rousejeremy on September 13, 2011, 11:34:28 AM
I recently tried the Phlat mod with Wamplers JCM mods. Amazing.
http://www.diystompboxes.com/DIYFiles/up/Build_Your_Own_DS-1_Distortion.pdf
I just realized i was changing those parts to those values for one my mods!lol! I posted this in the forum.You might try it out for fun sometime!I call it the "Bone Mod 2 MK".Here's the changes i did.(p.s. I'll have to try the JCM 800 and phlat mod!Thanks!)R6-150k
R9-10 ohm
R13-1k
R14-10k
R16-5k pot (midrange knob)
R17-15k
C2-.022
C5-1uf
C8-1uf
D4-D5-Taken out
Quote from: soupbone on September 13, 2011, 12:15:50 PM
Quote from: rousejeremy on September 13, 2011, 11:34:28 AM
I recently tried the Phlat mod with Wamplers JCM mods. Amazing.
http://www.diystompboxes.com/DIYFiles/up/Build_Your_Own_DS-1_Distortion.pdf
I just realized i was changing those parts to those values for one my mods!lol! I posted this in the forum.You might try it out for fun sometime!I call it the "Bone Mod 2 MK".Here's the changes i did.(p.s. I'll have to try the JCM 800 and phlat mod!Thanks!)R6-150k
R9-10 ohm
R13-1k
R14-10k
R16-5k pot (midrange knob)
R17-15k
C2-.022
C5-1uf
C8-1uf
D4-D5-Taken out
I forgot about this post.One reason i took the diodes out is because it's now just clipping the opamp.Get's a really nice 'big" sound.Try it you might like it.Mikey did
TLC2262 opamp, LED clippers, tweak tonestack to amp. ;)
Quote from: WGTP on March 16, 2012, 01:58:59 PM
TLC2262 opamp, LED clippers, tweak tonestack to amp. ;)
badass style :)
i did a tweaked version of the keeley mod to mine. in addition to the keeley mod, i changed c10 to a .015uf film cap, d4 to a germanium diode, left d5 stock, did not add the cap to the back of the diodes, switched the ic to a inline 4558, changed r6 to a 150k, and r9 to a 1k.
i like it tons better than the keeley mod. gonna go pretty in depth into the clipping section with my next one.
Quote from: Seven64 on March 16, 2012, 11:59:12 PM
i did a tweaked version of the keeley mod to mine. in addition to the keeley mod, i changed c10 to a .015uf film cap, d4 to a germanium diode, left d5 stock, did not add the cap to the back of the diodes, switched the ic to a inline 4558, changed r6 to a 150k, and r9 to a 1k.
i like it tons better than the keeley mod. gonna go pretty in depth into the clipping section with my next one.
Right on!I'm in the land of keeley(oklahoma).I was tinkering one day,and figured out how to take out r16,and use a 5k pot.Kind of a mid booster thing of sorts.I haven't used a 10k pot yet,but anxious to see how that works.
Quote from: WGTP on March 16, 2012, 01:58:59 PM
TLC2262 opamp, LED clippers, tweak tonestack to amp. ;)
Nice!Why would the TLC work better than the stock JRC?Is the TLC 14 pin?
http://www.ti.com/product/tlc2262
It is just another of the many possibilities for the op amp. Some folks don't hear any difference, some think the op amp makes all the difference. With LED's, a larger percentage of the distortion will come from the op amp, and the output will be higher and less compressed. The Sansamp uses the tlc2262. To me the clipping diodes make much more noticeable changes than the op amp does and there are many possible combinations. The EQ section is also very important and dependant upon the amp your using. My Valve Jr. has no tone controls, so it needs some mid scoop. ;)
I have always been pretty conservative on the value of C3 cap !!
Keeley calls for a .1 in this location , but for me its just to much low end , that tends to muddy the sound imo .
The DS1 responds so well to mods .....so here's a mod list that will drastically improve the tone of this pedal .
I did a blind play test of this mod v/s the Keeley SEM , and many in the room that day said they preferred this
over the SEM........
C1 -.1 uf
C2 - 1 uf
C3 - .033 uf
C5 - 2.2K resistor ( YES ! remove cap , install resistor of this value )
C8 - 1 uf
C9 - 1.5K resistor ( Yes ! remove cap , install resistor of this value )
C10 - .01 uf
C11 - .022 uf
C13 - .1 uf
C14 - 1 uf
R13 - 1.5 K
R14 - 1.5 K
R16 - Install switch - 2.2K & 1.5 K values ( works great as a mid boost / cut )
R17 - 15 K
R39 - 20 K
D4 - 1N34a Germ. + LED in series
D5 - 1N34a Germ. + LED in series
put my boss against a stock one tonight and was not impressed at all. the jrc chip has nowhere near the gain of the stock mitsubishi chip. i know this is the case because i swapped the chip in the distortion section of my hm2 with the jrc inline 4558 as well, and it sounded horrible.
would the ne5532 have more or less gain than the mitsu chip? tl072? opa2134?
would swapping out the c2240 transistors with 5088/5089's do anything?
I have never swapped out the chip in a DS1 ....
Does it make a big difference ???
Quote from: HOTTUBES on March 19, 2012, 12:45:54 AM
I have never swapped out the chip in a DS1 ....
Does it make a big difference ???
Good question. I've never gotten around to it because of the inline IC they use. Somewhere there has to be a PCB to replace the inline IC with a dual socket.
Quote from: Seven64 on March 18, 2012, 11:57:49 PM
would swapping out the c2240 transistors with 5088/5089's do anything?
yes it will , my ds1 before was modded to JCM800 by wampler.. its one of the best... then i i swap the IC to
opa2134, transistor to 5088...its more clarity and pronounce tone
http://cimarrontechnology.com/so8dip8tosiladapterpn060301.aspx
Quote from: HOTTUBES on March 18, 2012, 02:42:33 PM
I have always been pretty conservative on the value of C3 cap !!
Keeley calls for a .1 in this location , but for me its just to much low end , that tends to muddy the sound imo .
The DS1 responds so well to mods .....so here's a mod list that will drastically improve the tone of this pedal .
I did a blind play test of this mod v/s the Keeley SEM , and many in the room that day said they preferred this
over the SEM........
C1 -.1 uf
C2 - 1 uf
C3 - .033 uf
C5 - 2.2K resistor ( YES ! remove cap , install resistor of this value )
C8 - 1 uf
C9 - 1.5K resistor ( Yes ! remove cap , install resistor of this value )
C10 - .01 uf
C11 - .022 uf
C13 - .1 uf
C14 - 1 uf
R13 - 1.5 K
R14 - 1.5 K
R16 - Install switch - 2.2K & 1.5 K values ( works great as a mid boost / cut )
R17 - 15 K
R39 - 20 K
D4 - 1N34a Germ. + LED in series
D5 - 1N34a Germ. + LED in series
I'm going to post some audio clips of my DS-1 Bone Mod mk soon.Do you have any clips of this mod?
Quote from: Seven64 on March 20, 2012, 11:06:04 PM
http://cimarrontechnology.com/so8dip8tosiladapterpn060301.aspx
There it is! Has anyone made a toner transfer version of this? If it's possible that is.
Quote from: soupbone on March 23, 2012, 08:43:58 PM
Quote from: HOTTUBES on March 18, 2012, 02:42:33 PM
I have always been pretty conservative on the value of C3 cap !!
Keeley calls for a .1 in this location , but for me its just to much low end , that tends to muddy the sound imo .
The DS1 responds so well to mods .....so here's a mod list that will drastically improve the tone of this pedal .
I did a blind play test of this mod v/s the Keeley SEM , and many in the room that day said they preferred this
over the SEM........
C1 -.1 uf
C2 - 1 uf
C3 - .033 uf
C5 - 2.2K resistor ( YES ! remove cap , install resistor of this value )
C8 - 1 uf
C9 - 1.5K resistor ( Yes ! remove cap , install resistor of this value )
C10 - .01 uf
C11 - .022 uf
C13 - .1 uf
C14 - 1 uf
R13 - 1.5 K
R14 - 1.5 K
R16 - Install switch - 2.2K & 1.5 K values ( works great as a mid boost / cut )
R17 - 15 K
R39 - 20 K
D4 - 1N34a Germ. + LED in series
D5 - 1N34a Germ. + LED in series
I'm going to post some audio clips of my DS-1 Bone Mod mk soon.Do you have any clips of this mod?
NO , Sorry ...not at this time anyway .....
Quote from: HOTTUBES on March 25, 2012, 03:31:03 AM
Quote from: soupbone on March 23, 2012, 08:43:58 PM
Quote from: HOTTUBES on March 18, 2012, 02:42:33 PM
I have always been pretty conservative on the value of C3 cap !!
Keeley calls for a .1 in this location , but for me its just to much low end , that tends to muddy the sound imo .
The DS1 responds so well to mods .....so here's a mod list that will drastically improve the tone of this pedal .
I did a blind play test of this mod v/s the Keeley SEM , and many in the room that day said they preferred this
over the SEM........
C1 -.1 uf
C2 - 1 uf
C3 - .033 uf
C5 - 2.2K resistor ( YES ! remove cap , install resistor of this value )
C8 - 1 uf
C9 - 1.5K resistor ( Yes ! remove cap , install resistor of this value )
C10 - .01 uf
C11 - .022 uf
C13 - .1 uf
C14 - 1 uf
R13 - 1.5 K
R14 - 1.5 K
R16 - Install switch - 2.2K & 1.5 K values ( works great as a mid boost / cut )
R17 - 15 K
R39 - 20 K
D4 - 1N34a Germ. + LED in series
D5 - 1N34a Germ. + LED in series
I'm going to post some audio clips of my DS-1 Bone Mod mk soon.Do you have any clips of this mod?
NO , Sorry ...not at this time anyway .....
Right on.I have a DS-1 with all of the caps and resistors taken out,and soldered wires from the blank holes,so i can try differn't combinations out.I guess it would be easier just breadboarding it,but I'm not that great at it yet.I'll definately check out your mod.Sounds cool!
here's a video demo I did of my DS-1. While it's modified for bass (and demo'd on bass) you can get the gist of what it sounds like lifting one side of the clipping diodes (D4) and what the high-gain mod sounds like (changing R13 from 4.7k to 1k)
http://www.youtube.com/watch?v=WYQF7U-3hTs&list=UU9KIVV0TMsHVOcIv1xA8rVQ&index=2&feature=plcp
Nice work. ^
Here are video demos of the LPD Sonoran Dog Mod as well as the mod docs.
http://db.tt/uLQhtYqN
http://youtu.be/AF8u5dAw3k0
http://www.youtube.com/watch?v=hNM-0KTY-3w
Quote from: Groovenut on March 29, 2012, 12:49:08 AM
Here are video demos of the LPD Sonoran Dog Mod as well as the mod docs.
http://db.tt/uLQhtYqN
http://youtu.be/AF8u5dAw3k0
http://www.youtube.com/watch?v=hNM-0KTY-3w
Hey Lawernce.I was checking out your "Sonaran Dog Mod" out on youtube.Very nice!Almost sounds more like an overdrive now!Here's on of my mods i came up with with an in-depth analysis by Pete Moore.(all the parts he talks about are my changed values) Check it out and lemme know what ya think!-soup R6-150k...base bias resistor, part of the resistive divider/base bias resistors, should lift the base voltage a touch.
R9-10 ohm...Emitter resistor, bumps the gain up...brings the E closer to Gnd.
R13-1k ...has to do with the opamp gain/frequency 'string' there...apply the R/C formula or try it and see.
R14-10k...another R/C position, smaller R in the signal path = reduced losses
R16-5k pot (midrange knob]...perhaps 5k + 3k3 [?] stop resistor so the range = 3k3 - 8k3 adjustable resistance there [this would cover the original fixed value of 6k8.
R17-15k...messes with the tone control, try the 15k there, and use a jumper resistor across it to try the sound of smaller values
C2-.022...was .o47uf, series in signal path...smaller values cut more bass
C5-1uf...another signal path capacitor
C8-1uf...again a SP Capacitor, personal voicing preferences apply to these.
D4-D5-Taken out...these are the clipping diodes, another great place to 'mess with', by raising the threshold of the diodes [taken out makes it more of a DB-1 [dirty boost I guess] because no hard clipping without them. Try different values here for sure for big differences in output level/how hard the signal is clipped/distorted.
Hey Soup thanks for checking out my videos and the kind comments.
I found that reducing the bass content through Q2 also eliminated alot of the fuzz in this circuit without having to change the bias of Q2. The fuzzy buzzy quality of the DS-1 was always what annoyed me about the pedal, that and the fact that it had too much unusable distortion and low output. So those were my change goals at the outset. I changed C3 and C5 which eliminated the fuzz/buzz issue. I chose not to change C2 because I did not want to alter the bypass tone. Next was to change the output level and clipping character. For this I changed the diode forward voltage allowing for a higher clipping threshold. This also meant having to increase the gain of the opamp to get some of the clipping back. I changed C10 to round off more of the clipping buzzies. Next to help the output I changed R17. This was a two-fer for me as I wanted to get rid of the mid scoop as well as gain output. Ofter the mod, this pedal has unity gain with the distortion control at zero and the volume control at noon. As such it can be used as a semi clean boost as well. That's my personal rundown anyway.
Do you have any clips of your mod? I would really like to hear them.
Quote from: Groovenut on April 01, 2012, 12:54:01 AM
Hey Soup thanks for checking out my videos and the kind comments.
I found that reducing the bass content through Q2 also eliminated alot of the fuzz in this circuit without having to change the bias of Q2. The fuzzy buzzy quality of the DS-1 was always what annoyed me about the pedal, that and the fact that it had too much unusable distortion and low output. So those were my change goals at the outset. I changed C3 and C5 which eliminated the fuzz/buzz issue. I chose not to change C2 because I did not want to alter the bypass tone. Next was to change the output level and clipping character. For this I changed the diode forward voltage allowing for a higher clipping threshold. This also meant having to increase the gain of the opamp to get some of the clipping back. I changed C10 to round off more of the clipping buzzies. Next to help the output I changed R17. This was a two-fer for me as I wanted to get rid of the mid scoop as well as gain output. Ofter the mod, this pedal has unity gain with the distortion control at zero and the volume control at noon. As such it can be used as a semi clean boost as well. That's my personal rundown anyway.
Do you have any clips of your mod? I would really like to hear them.
Not yet.Hopefully this week I'll have some clips up. :icon_biggrin: What did you change C3,C5,and C10 too?I wanted to get rid of more of the fuzz as well.
There is a link in my original post that is a zip file of all the goodies.
Quote from: Groovenut on April 01, 2012, 12:19:01 PM
There is a link in my original post that is a zip file of all the goodies.
Sweet!
Those values work very well with humbuckers. For single coils you would probably want to change C3 to 18n and C5 to 27n - 33n to help with the thinning the single coils will bring.
Modded some boss pedals in the pas months, exp. DS-1 and SD-1
as for the DS-1, the ultra/sem is not my fav, still good, but...
The jhs synth drive has two faces of the same medal to consider...you have the crazy synth sound that kill, if you're in a post modern alternative etc. band. also you have the stock sound modified, it has less harsh and screeching highs and a tamed gain...it sounds very good.
last one I made was a mix of wampler classic jcm mod (not all, but in a minute...) and brett miller phlat mod, a switch to change c11 and c12 (two caps in the tone section)
of this last pedal, I really love the switch, it really puts out a good sound...I figured I left R17 vacant, wampler wrote in his premierguitar article to change it from 6.8k to 15k. others suggest 22k or 33k.
I just left the holes empty...it seems it has more "air" when the tone knob is at its max (it affects only the higher tone settings...)
what do you think about the r17 mod?! Someone changed it or took it off just like I did!?
Quote from: Renegadrian on June 09, 2014, 04:22:02 PM
Modded some boss pedals in the pas months, exp. DS-1 and SD-1
as for the DS-1, the ultra/sem is not my fav, still good, but...
The jhs synth drive has two faces of the same medal to consider...you have the crazy synth sound that kill, if you're in a post modern alternative etc. band. also you have the stock sound modified, it has less harsh and screeching highs and a tamed gain...it sounds very good.
last one I made was a mix of wampler classic jcm mod (not all, but in a minute...) and brett miller phlat mod, a switch to change c11 and c12 (two caps in the tone section)
of this last pedal, I really love the switch, it really puts out a good sound...I figured I left R17 vacant, wampler wrote in his premierguitar article to change it from 6.8k to 15k. others suggest 22k or 33k.
I just left the holes empty...it seems it has more "air" when the tone knob is at its max (it affects only the higher tone settings...)
what do you think about the r17 mod?! Someone changed it or took it off just like I did!?
Sounds like a cool mod Adriano!I'll check it out! :icon_cool: Might try putting it on a switch.See what that sounds like.