Boss sd1 best mod

Boss sd1 best mod. fi/3OJGh4WTime Stamps:0:00 Intro3:38 EVH 5150 EL34 9:04 M The BOSS SD-1 produces the warm, smooth distortion of an overdriven tube amplifier while maintaining the subtle nuances of your picking technique. Capacitors improve the tone a bit too and reliability as well. This pedal makes distortion sound smooth, warm, and rich. Boss perfected the generic overdrive pedal 40 years ago with the SD-1, but many ppl downplay that generic sound and prefer boutique or independent pedals. Any help pointing in any direction is appreciated, as I really like how this one works in my setup. The SD-1 can do edge of breakup late 50s/early 60s sound, 60s overdrive, and even 70s glam metal depending on the guitar and amp of course. Some feel the RC4558P is a better sounding chip than the JRC4558DD in the Jan 9, 2008 · Boss DS-1 Mods. Monte Allums Roxx Tri-Gain Plus Mod. 4 K. Sep 8, 2005 · Posted September 8, 2005. See 2 musician reviews, how 1 pro uses it, and where to get a deal on Keeley Boss SD-1 Super Overdrive Ge 5 Star w/Diode Switch Mod, ranked #977 in Overdrive Effects Pedals and rated 5. Boss SD-1 Super Overdrive Monte Allums GT Mod & Capacitors Upgraded. 12. The mod was just a swap from the original diodes to germanium+transistor. Hopefully this is helpful to someone. Can you tell the difference in tone, has the mod made an improvement at all? Is this worth the $80. Some early ones (1978) used an NEC uPC4741C NPD: 40th Anniversary Boss SD-1, also posted to dispel a myth. No returns, no stories, no “try before you buy”. These are used Boss pedals, with our various mods. BOSSのSD-1をChocolate MODする。モディファイ方法今回は誰でも知っているBOSSのSD-1のモディファイ方法を説明いたします。 Boss SD-1 Super Overdrive mods. Jan 25, 2024 · First off let me say I love the SD-1 stock. Boss SD-1 Super Overdrive w/ Analogman 808 Silver Mod with Clipping Toggle. 6. This RC3403D chip has 14 pins. removed c6. https://spoti. 30-Day Return Policy. $ 62 . Replacing any of the diodes with a germanium type will reduce the amount of headroom provided by the existing diode complement. Level ~ usually between 11 and 3. The SD-1 SUPER OverDrive pedalis compact, tough, powerful, and surprisingly affordable. But with so many boutique distortions Jul 25, 2022 · Check out this awesome modded SD-1 I found in Japan. Espero que voces curtam, compartilhem e se inscrevam. Grab a onespot off eBay or somewhere - not too expensive and deathly quiet. Amp: Ove Raw and aggressive like the stock SD1 but with more balls and clarity. Check led is indicting battery power. 2k-ohm Resistor, one Toggle Switch, 24 Ga. The pedal was used very sparingly in m With this Kit you will receive one 2. Here is a list of what this mod offers: Mar 27, 2019 · Gear isBOSS SD-1 1985 Made in Japan↓ SD-1W Waza Craft "C" mod↓ Keeley 5star GE mod↓ Analog. Eligible for Return, Refund or Replacement within 30 days of receipt | Product support included. Wire and Heat Shrink Tubing. $91. Here's what JHS says about it: The SD-1 is a good sounding overdrive that is designed in the shadow of the mighty Ibanez Tubescreamer. If you've been in a music store anytime since 1978, you've no doubt seen the ubiquitous orange Boss DS-1 Distortion pedal. It has no toggle so the germanium diode is always engaged in the clipping section that gives you that harder drive and more compression. But I’ve also found some mods I like as well. The Keeley SD-1 Stacked Mod cost $80. This, IMO, is my best DS-1 mod to date. Discontinued, but not expensive used. More Details. DS-1 settings: Tone ~ 9 o'clock. Btw, the MXR ZW44 is the same but without the bass rolloff. Many guitarists have owned one or two (or 20) throughout their years of playing. This popular mod from Keeley makes the SD-1 into a hard rocker's dream, turning the pedal into a gainer and more open TS style overdrive that can reach distortion territory when dimed out. Williams What mod did you do? The wrapping was a REALLY tricky, the boss enclosure has a weird shape. The circuit of the SD-1 is very similar to the TS9. Dec 22, 2017 · Love it or hate it, the Boss DS-1 Distortion pedal is one of the most popular pedals of all time. it just comes down to taste. Quer comprar esse pedal? acesse o link:https://www. Its a surface mount, small board SD1, so that makes it a bit harder probably. CharvelDK24. Free 2-Day Shipping. $195. The Boss SD 1 Super OverDrive Keeley Mod sits somewhere between a BD-2 Blues Driver and the full on DS-1 Distortion. | Search this page. Tone snobs can wax poetic about how certain component changes over the years have affected its tone, but the truth is a new SD-1 doesn’t sound dramatically different from an original early ’80s model, and many players may actually prefer the nuances of newer Jul 8, 2023 · The main function of overdrive pedals such as the Boss SD-1 is to give the sound of your guitar some extra punch. This helps to eliminate hiss or background noises. br/. Not sure when it was originally manufactured by Boss. 99. It sounded damn good, but I can't find any info on it, and the company referred to in the video hasn't updated the site in awhile. I read a thread elsewhere in which people were arguing about this thing. I got a hot signal coming from my bass preamp into the pedal and don't want it to go nuts even with the drive turned down. Boss SD-1 Super Overdrive modified by Robert Keeley: The improvement consists (according to Mister Keeley's website) in retaining the tonal color of the "stock" SD-1 while increasing the gain, improving the action of the pots (more volume, more gain and a more efficient tone) and making it more precise and defined. This mod includes all the mods in my regular SD-1 mod, plus you get three extra components that will take the SD-1 to TS808 specs. I built it around dual stacked NE5532s. They changed them to SMT components. Price Drop. Dec 28, 2014 · The SD-1, once transformed with this incredible Trans Am mod, can really stand on its own with some of the big boys of the Overdrive world. $ 56 99. com. i sold a 1979 OD-1 and an unmodded SD-1 when i got this because it was the clear winner. 7v low-current LED. Going for a quasi Eric Johnson tone with more gain and a bit more attack. 15uf, for more bass go to . In fact I almost named the mod Velvet because this mod has an almost velvet type smoothness to it. gght. TS-808 Plus Mod ($39. The components are super small in this one. replaced r5 with 4,7k metal film resistor. “More bass, less mids” mod: C2: . $130. Boss SD-1 Super Overdrive Pedal Bundle with Behringer SF300 Super Fuzz Pedal. Here’s a new track I just wrote/recorded - for the tone that kicks in at 25 seconds I’m using the SD-1 with what I call the “Heavy EJ mod”. com/boss-sd-1-review/I've owned my Boss SD-1 for over 15 years, so I've made this video to sh including Reverb BumpLearn More. Unique asymmetric overdrive circuitry delivers a genuine overdrive effect for a classic guitar sound. You do not have the required permissions to view the files attached to this post. BOSS OD1 CLONE SD1 SUPER OVERDRIVE MOD TO OD1 SPECS JRC4558DD CHIP. io/guitarsenalSUPPORT US ON PATREON: https://www. With its low price tag and iconic appearance, this ubiquitous orange dirt box has been a bestseller for almost 40 years. 1 K. These settings are used with a slightly dirty amp with my tone and dynamics controlled by my guitar's knobs. fuzzland. If you have basic soldering skills and can follow directions this is an easy project that can be completed in about 1/2 hour. Don’t think it does that much of a difference, but the pedal was already disassembled so…. Review the image with this product listing for more information. This adds some high frequencies back in and removes some compression. This piece of gear has sold. The pedal has three main control knobs: level, tone and most importantly, drive. This mod kit will not work on the new Boss pedals with a surface mount PCB. Boss SD-1 w/ Landgraff Mod Mint unused Landgraff modded pedal with 3 way Clipping switch Landgraff Dynamic Overdrive in Boss flavor, $400 bucks cheaper This mod transformed this pedal, first off the metal film resistors knocked down 50% of the white noise/hiss. $35. Glen Burnie, MD, United States. Oct 11, 2022 · 7. While I was there I also snagged a Squier strat for $80, and immediately took it apart to mount some p90s that I got on Facebook 今回はBOSSの名機SUPER OverDriveのMOD品技CRAFTとKeelyを鳴らし比べてみます！マルチエフェクターの取説動画をアップしてます！ ZOOM MS-50Gの取説動画は Boss SD-1 Mod Help. 33uf R6: 2. Purchased directly from Robert Keeley when he was still doing pedal modifications. Good quality SMD sounds just as good as quality through-hole. $3. It is wired to the clipping diode circuit. 300+ bought in past month. 95. • 1 yr. replaced c4 with 0,01 uF film cap. All components are upgraded throughout and a Sep 13, 2020 · In this video we give the BOSS SD-1 C6 Modification a go and compare a stock pedal to a modded one. I guess most of those users used the pedal as a stand alone OD box, but I use my only for boosting. replaced c8 with 0,47 uF film cap. Drive ~ all the way up. The OD-1 (and SD-1) use asymmetrical clipping, which Boss has a patent on, to give some thick overdrive with an edge. 99) We put in a RC4558P opamp (or JRC4558D if you prefer), but also an IC Socket that allows you to easily try different chips for different sounds. Boss got it perfect 40 years ago Unlike a tube screamer, this pedal doesn’t sound like you put a heavy wet blanket over your speakers (especially with humbuckers) The SD-1– depending of course on settings, the guitar and amp— can sound like late 50s amp overdrive, 70s rock, to 80s glam metal. I did the C6 mod to the pedal already by the way, which I know has nothing to do with what im asking about but figured it was worth mentioning. Used – Very Good. Boss SD-1 Super Overdrive Pedal - missing 1 knob / Black Label / MIT Made In Taiwan / ACA 12V. I decided to do the easiest one. So it was modded on bicycle day in 2004 apparently, and it's the TS808 mod, with symmetrical clipping. The bass boost is a nice option but I like how the SD1 cuts low end so I leave that off. Diodes in Feedback Loop - 2 x 1N400X in both directions with a series 560 R resistor on one pair. I removed the C6 after reading some reviews stating it would make the pedal more transparent and "open" sounding. The difference will blow you away. 1uF capacitor. The mod. yes, the stock SD-1 sucks going into a totally clean amp (although a modded one like the one on my board sounds glorious). Our hand-picked parts for resistor and capacitor changes are metal film. Product Description. Reverb Bump. Boss SD-1 Super Overdrive with Analogman Mod 2010s - Yellow. As far as the ZW 30-Day Return Policy. Torna este pedal mais suave e mais parecido com um amplificador. The Ge diode clips the signal more than a standard silicone diod Boss SD-1 Super Overdrive Monte Allums GT Mod & Capacitors Upgraded. 0 of 5 on Equipboard. Used Boss SD-1 Super OverDrive W/Box. The red LED indicator has been replaced with a blue LED. Underneath the hood of this pedal dwells the Dec 8, 2010 · Here is a demo video comparing the popular Keeley SD-1 Stacked Mod with a unmodified stock Boss SD-1 overdrive pedal. Im new to all of this btw, the most advanced mod ive dont was clipping the c6 lol. guitar products pedal mods eNut guitar shielding best pedal mods. But, if you want to make your SD-1 not sound thin and weak, run it into a boost pedal. Boss SD-1 Super OverDrive (Black Label) 1985 Yellow Made in Japan MIJ. Boss SD-1 (old style circuit board) Boutique Vintage Mod 808 (one of a kind) This Boss SD-1 has been revamped with a real New Old Stock set of old school 808 / TS-9 silicon clipping diodes with the blue stripes and are amazing! They were shipped to me from Japan. 2k C4: . Company. I believe the circuit is the same but I don't know if the component reference is the same so you may have to trace the circuit a little to find the "C6". You can still open her up and look for poorly connected wires on the switch, jacks. Boss SD-1 Super Overdrive with Analogman Silver Mod RE-J project 2010s - Yellow. Leander, TX (outside Austin) The Bass SD1 was my main overdrive pedal for touring years* until the OBD3 came out then used both. Our SD1 5 Star Ge mod includes a two way gain switch that allows you to select between two different diodes for the clipping/distortion section of the pedal. Boss Effects and Pedals. Analogman offers various mods for the Boss SD-1 Overdrive, including the TS808 Tube Screamer mod, the Push-Pull mod to switch between Ibanez and Boss style clipping, and an improvement in the sound of the pedal when bypassed. This mod takes the SD-1 to the next level! We do this by making the SD-1 more Hi-Fi, improving the bypass circuit to eliminate tone bleed through, adding a bass boost switch, adding a two-way gain switch, and fixing the "blanket over the speaker" issue this pedal has. Very easy to follow illustrated instructions are sent VIA e-mail attachment along with paper instructions sent with the parts. With the gain all the way down that's really all it is, you've got the tone control still but it doesn't add any distortion that I can hear. If you want to diy it a bit ask at r/diypedals. 5khz. 2k The Boss SD-1 is an overdrive that sits somewhere between a BD-2 Blues Driver and the full on DS-1 Distortion. Brand New. The goal is more headroom and more amp-like (bit less harsh) overdrive. $15 price drop. Tone ~ 11 o'clock. There's nothing new in this, it's just a nice balanced combination of mods with much better clarity and tone than a stock pedal, while still retaining the original character. Posted October 11, 2008. Removing Capacitor C6 from the circuit is one of the most Sep 11, 2011 · Well-known member. I did thi It's your power supply. Help Identifying Boss SD-1 Mod A buddy of mine lent me this SD-1 to try versus a TS-9 I modded and really like, but he can't remember what kind of mod was done to this (he got it in a trade). Jan 12, 2021 · I'm comparing the Boss OD-3 Overdrive, SD-1 Super Overdrive and BD-2 Blues Driver overdrive pedals. Price$62. I have had mods done to a SD1 many times, Monte Allums and others, always just go back to the plain vanilla pedal. While I was there I also snagged a Squier strat for $80, and immediately took it apart to mount some p90s that I got on Facebook Jan 30, 2023 · Read the full review on my website: https://www. 00? What do you all think? [video=youtube;xZw9x47_rfo] 今回はBOSSの名機SUPER OverDriveのMOD品技CRAFTとKeelyを鳴らし比べてみます！マルチエフェクターの取説動画をアップしてます！ ZOOM MS-50Gの取説動画は Keeley Boss SD-1 Super Overdrive Ge 5 Star w/Diode Switch Mod, Overdrive Effects Pedals. It seems to me that fooling around with cheap distortion is a good intro to the craft. My settings are SD-1 Into DS-1. ago. Just wondering cause that can be a sign of a loose ground wire. The C6 capacitor cuts high end starting at about 1. Boss SD-1 mods. The Boss SD-1 is an overdrive that sits somewhere between a BD-2 Blues Driver and the full on DS-1 Distortion. About This Listing. This completely removes the fizz from the DS-1 circuit and gives the pedal a very natural sounding distortion. A hole has been drilled in the top and a mini toggle switch has been installed. Free Shipping. In other news: the MXR GT OD (still available) can be 100% the same as the ZW44 by just flicking an internal switch, so that's another option. The DS-1 has been a major guinea pig in this debate, and Monte Allums has developed a modification that surrounds this approach: The Tri-Gain Plus Mod. Guitarra: Gibson Lespaul. As someone mentioned above, it is probably the battery if you've left a cable plugged in the input. It basically makes the EQing more well rounded and modern while making the clipping slightly more Feb 22, 2011 · R5 - 5. I'm busy now until next week so won't have time to build and verify right away. 047uF and can let only a certain amount of bass into the circuit; for more bass up it to a . - Submitted by N. Assuming that its the same, the c6 mod mostly changes the frequencies that are effected by the tone knob. Boss changed these to SMT (surface mount) construction in 2018 or so, which we cannot modify or repair. replaced d4 with 3mm 1,7v LED. And that will definitely work into a crystal clean amp. Universally recognized as a good, inexpensive distortion pedal, you've probably even Picked up a Boss SD1 from a friend yesterday for $40. Drive ~ all the way down. Jan 16, 2023 · Boss developed the SD-1 as an improved version of the OD-1 Overdrive by adding a tone control and making a few tweaks to the circuit. No velcro on back. New Boss DD-3 Delay, 800mS, hold, 2 outputs, HIGH CUT MOD $178. The custom mode supposedly is more like the Keeley mod, if I recall correctly. They assumed it was a reissue of sorts with a full sized through-hole circuit board. The stock SD-1 comes with the JRC4558DD op-amp chip. When I got it home I took off the back plate, to see this. This popular mod makes the SD-1 into a hard rocker’s dream, turning the pedal into a gainer and more open TS style overdrive that can reach distortion Payment & Returns. Published on 09/16/14 at 02:39 (This content has been automatically translated from French) Boss SD-1 Super Overdrive modified by Robert Keeley to improve it. man SD-1/TS-808 modGuitar : Gibson Les Paul C If it bugs you too much but you still want that SD-1 on your board, mod it or get a noise reducer/gate. by Overdrive Spyder. $115. Blows away boutique pedals - Rob Fulmer 9-15-2022 5 STARS Awesome pedals (modified Boss SD-1 and MT-2), fast shipping. Follow along as the Wampler Pedals leader shows several tweaks you can easily make to personalize your orange box of rock. Oh and btw I was going to replace D4 with a red 1. For BOSS pedals, that's the on/off switch. What are some good ones or favorites? I found one called the Kill Mod. This modification gives this pedal so much more. There has been tons of buzz around ‘stacking’ op amps to obtain a more tube-like sound in distortion circuits. I've never modded pedals before, but I do have some electronics experience so I figured I would ask you guys what you recommend. FREE Returns. Available at a lower price from other sellers that may not offer free Prime shipping. Get a low price and free shipping on thousands Description from Monte Allums website: “This is my third mod for a Boss SD-1. 68uf R6: 2. Pretty self-explanatory. Ok. It is totally different from my Rectifier mods. The SD1 has a smooth yet slightly jagged ASYMMetrical , full medium gain overdrive with good overall frequency presentation: sounds its best of course driving a semi cranked tube amp. Originally $130, now $115 ($15 price drop) $130. Boss SD-1 Super OverDrive (Black Label) 1997 - Present - Yellow W/ Original Box. patreon. The SD1 is used by Zakk Wylde actually which is funny because he still uses it today even afterthe ZW44 was released. With this Kit you will receive one 2. I forget what makes some hum and others not but when I use a cheap generic supply my drive pedals are very noisy but my Danelectro DA-1 keeps them quiet. roundtableaudio. The original OD-1 was made with a QUAD OP AMP CHIP, seen at the left. Used – Fair. TONE – Controls how each strike of your string will sound. + $4. Highly recommend this pedal. I recently came across an SD-1 and I'm finding it to be quite lacking. Feb 2, 2018 · Super Overdrive da Boss SD-1 modificado por Junior Rossetti da JR MOD. Feb 22, 2006 · 2,543. This will result in more intense clipping at lower drive settings, but also lower One of the most famous mods (if not "the" mod) of the famous sd1. View similar gear from other sellers on Reverb. I read up on some communities and did the following: replaced c2 with 0,47uF film cap. I know there are a lot of mods out there for the SD-1. I've seen a couple of interesting mods around online. Nov 24, 2021 · Thank you for checking out this preview! The Boss SD-1 is a classic staple in a world of super overdrives! This AMM Amplified SD-1 KILL MOD is definitely add Oct 13, 2008 · The SD-1 provides more gain than the TS-9, and employs a 2+1 diode complement to provide something approximating asymmetrical clipping. grsm. The mod is also available if you send Add to Cart. 50 Shipping. It can easily put out gentle, bluesy tones as well as … read more. Don't pay hundreds of dollars for a Boutique overdrive when you can upgrade your SD-1 for $19. 0068uf or for more clarity go to . that being said, my taste prefers the sd-1 even to most booteeek stuff these days, best pedal for the price imo. Boss SD-1 Super Overdrive with Analogman TS-808 MOD. Otherwise, if it is brand new, it will still be under warranty with Boss, so you can reach out to them. $62. Boss SD-1 mod. Olympia, WA, United States. Other mods that can be done alone or in combination: “Volume booster” mod: C2: . Nov 14, 2012 · Applied the Wampler "Chocolate" mod to the generic Boss SD-1 overdrive to very pleasant results! I think the combination of germanium and LED diode clipping Boss SD-1 with Analogman Silver mod + Tube Screamer mod (both mods installed by a local pedal builder, NOT modded by Analogman) Made In Japan MIJ April 1981 Hate to sell this pedal but must let go of some of my favs. Beltsville, MD, United States. Delay is a pro tools plugin. Nov 4, 2013 · Aug 17, 2000. e muito dinâmico para ma Aug 13, 2008 · This is a Keeled modded MIJ Boss SD-1. Sep 14, 2010 · Here is my vero layout for the Boss SD-1 minus the soft switching. Amazon's Choice in Guitar Distortion & Overdrive Effects by BOSS. Introduced in 1982 using the same chip as the awesome rack mount SDE-3000, the DD-2 was very expensive. R17 - 10 K. If you send one in for a mod, make sure it's the old style, the circuit board fills up the whole pedal on the old ones, you can see by removing the bottom plate. Also have a couple of questions which probably means this layout can't be trusted until I get them answered. i just use it as a lead boost though. $210. com/GuitarsenalATLANTA DISCOUNT MUSIC: http://atlantadi Nov 15, 2009 · This mod kit will not work on the new Boss pedals with a surf. Sure there are better clean boosts out there but it works just Boss. 1uf C3: . A Tone control is also provided for precise tonal adjustment. 0047uf C6: REMOVE TOTALLY (DON'T REPLACE WITH ANYTHING) LEVEL POT: CHANGE TO 500K AUDIO TAPER. It may sound a little brighter, but also have a little more noise. Also many components have been changed with mylar capacitors. The mod applied to the stock Boss sd1 gives you a better more natural overdrive range on one side of the toggle switch, the other side sets it to different tweakable fuzz tones varying anywhere from octave up/ down, gated, woofy, starved & able to emulate some classic fuzz sounds too. SD-1 settings: Level ~ all the way up. Columbia City, IN, United States. Actually, if I remember correctly there wasn't any reference on the one I modified for someone. A 2N3440 Transistor in this circuit, along with a few other tweaks here and there, transforms this pedal into an absolute tone monster! This mod combines the positive qualities of my first two SD-1 Mods to create an The BOSS SD-1 is famous for being used both as an overdrive and boost pedal. Nana build is back! Get the guaranteed best price on Distortion & Overdrive Effects Pedals like the BOSS SD1 Super Overdrive Keeley Mod Effect Pedal at Musician's Friend. . For sale is a Boss SD-1 with the Keeley 5 Star Mod. Which do you prefer? Let me know in the comments. Boss DS-1 Distortion Pedal Bundle with Boss SD-1 Super Overdrive Pedal. Dec 11, 2008 · the ts9 will have a bit of a mid hump and possibly more "grit" and an sd-1 will be more of an overall boost and add a bit more punch to the tone. All relevant components are modded to exact specs as a vintage ibanez ts808 with 2 exceptions:(1) I kept the SD-1 drive pot, which allows for twice the gain as TS808! All the normal low gain ranges are available on the first half of the knob. R16 - 100 R. Sucks for modders though. Boss DD-3 Digital Delay pedal. SOLD | View similar gear. $20. $109. Boss SD-1 w/ Keeley GE mod. Tube Screamers use symmetrical clipping for a smoother, warmer, less edgy sound. GET YOUR GEAR ON REVERB: https://reverb. I just tried to mod a boss sd1 pedal for bass. 01 price drop. Also, I have a TS-9, so I'm too worried Boss SD-1 Bass Modification: The input capacitor [C3] is only . $129. 22uf or even . The “down” position selects a germanium diode (the “Ge” part of the name). Used – Good. The mod sounds great and makes the pedal super versatile. 00 and the Boss SD-1 cost about $39. has been d The best MOD camp that everyone receives with this SD1 Overdrive, which provides natural transparency, what Keeley modded mods into is Real guitar sound, no drop, fuller, rounder and clearer tones, boosting gain without blur, clean, Keeley style. (2) Diodes are symmetrical clipping as the TS808 but ar Check battery/power supply. R6 - 2. View Full Listing. I have also included a RC4558P chip. Check out my own music on Spotify. BOSS Super Overdrive SD-1. Add to Cart. Sep 11, 2011. #1. I'll try to dig up the mods I did to mine - added a lot more volume so it makes a GREAT clean boost now. The improvement consists (according to the website of mister Keeley) keep the tone color of the SD-1 "stock" while increasing the gain, making it more precise and definite. Castle Rock, CO, United States. But it’s there if I ever want it. 14-Day Return Policy. The Boss DD-3 is made with the same technology as the DD-2 which was the first compact stomp-box digital delay pedal. Boss SD-1 Super Overdrive, Thick, Killer Overdrive, Support Small Business & Buy It Here, Thanks ! Brand New. JHS Modded Boss SD-1 (Trans Am mod) with some scratches and dings but works perfectly. This Boss Keeley Modded SD-1 has a 2 way gain switch with the ability to select two separate diodes, silicon and GE diodes. $6299. Perfect for both single coil and humbucker guitars! Two TI RC4558P ICs stacked inside for clarity, noise reduction, and a mini-toggle for tons of tone options. Related: LEVEL – Increases the overall volume of the pedals effect. NOTE: in 2017 Boss produces the some pedals with surface mount technology. Oct 11, 2008 · Members. From a nice high gain to distortion level. For under $100, you can get an incredible drive pedal at an incredible price, with superb upgrades and quality parts throughout. This mod is built around a 2N3440 Transistor. Tomball, TX, United States. The regular mode in the SD-1w isn't even the same guts as the SD-1, they sound similar but not identical from what I gathered on this subreddit and across many posts. Poorly regulated supplies can be super noisy. This popular mod from Keeley makes the SD-1 into a dream, turning the pedal into a gainier and more open TS style overdrive that can reach distortion territory when dimed out. an wb bv bk ku he gw sw ow eg