NJD SE-1 Classic Dub Siren Unit
Printed From: Speakerplans.com
Category: Other Chat
Forum Name: Roots n Culture Forum
Forum Description: Talk about speaker box with other sounds here
URL: https://forum.speakerplans.com/forum_posts.asp?TID=68223
Printed Date: 27 March 2026 at 10:58am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: NJD SE-1 Classic Dub Siren Unit
Posted By: DubSirenSpecialist
Subject: NJD SE-1 Classic Dub Siren Unit
Date Posted: 21 June 2012 at 10:26pm
|
First post on Speaker Plans >.< Anybody still own one of the original NJD SE-1 dub sirens, and or has a schematic they'd be willing to upload?? or very detailed shots of interior and circuitry so I could work out what they run on?? I build my own dub sirens and would very much like to build one for myself, maybe resulting in a few for sale later if it turns out well. Really like the sound of these units and want to give it a try. thanks, Dan. |
Replies:
Posted By: Dubaholic
Date Posted: 21 June 2012 at 11:21pm
!!!!
------------- ****************************** ****************************** |
Posted By: DubSirenSpecialist
Date Posted: 25 June 2012 at 9:24am
| Thanks Dubaholic! any internal shots of circuitry?? or a schematic possibly?? Love these units, want to build one bad!! |
Posted By: Yasuhiro
Date Posted: 06 February 2015 at 7:50am
|
Upload NJD DUB SIREN CLONE Schematic&Diagram It is Real NJD CLONE Schematic Can make easy and low cost, under us30$ for circuit plus Enclosure Have Fun Loud SIREN DEMO SOUND https://www.youtube.com/watch?v=NDdxUGTD9n8&spfreload=10 Download http://www.siren-machine.com/NJD/NJD%20CLONE.zip |
Posted By: Dub Specialist Sound
Date Posted: 06 February 2015 at 7:23pm
|
what 30 dollars? all in? full build and enclosure ------------- Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE... |
Posted By: Rico
Date Posted: 07 February 2015 at 11:36am
| Sorry but maybee a stupid question. Is there a mic pre amp ind de njd siren? Because of the jack input.. |
Posted By: ILuvDub
Date Posted: 10 February 2015 at 5:08am
| There is no mic pre in the siren. Siren only. The mic input is I believe just that, a mic input. |
Posted By: ILuvDub
Date Posted: 10 February 2015 at 5:11am
It was bound to happen someday with that schematic... can we delete that post please???
|
Posted By: DubSirenSpecialist
Date Posted: 10 February 2015 at 3:21pm
|
To be fair the schematic is useless anyway as doesn't show if they are joins or if the wire is just passing underneath another wire etc. Gutted as was right about ready to start soldering a prototype and then thought ahh bugger lol. Yasuhiro please upload a better schematic! ------------- The man of many technologies, the technologies of many men. |
Posted By: valve head777
Date Posted: 10 February 2015 at 4:17pm
|
i have a siren that will sound alittle bit different than yours and yours and yours and yours. stop copying and build something original! (no offence)..... its getting boring hearing the same siren again and again, especially when not used musically. ------------- Freedom of choice, choice of freedom. |
Posted By: app
Date Posted: 10 February 2015 at 4:23pm
Thats a great point!  ------------- "what!?" |
valve head777 wrote:Posted By: Dub Specialist Sound
Date Posted: 10 February 2015 at 5:24pm
|
True still , theres an art/timing ect to using pulses,blimps and sirens not just wail away man and stress it!!! ------------- Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE... |
Posted By: wiz247
Date Posted: 10 February 2015 at 5:35pm
Bang on the money!
|
Posted By: rigsmith_electronics
Date Posted: 11 February 2015 at 9:29am
| Cannot be bothered with it |
Posted By: valve head777
Date Posted: 11 February 2015 at 11:08am
------------- Freedom of choice, choice of freedom. |
Posted By: app
Date Posted: 11 February 2015 at 11:11am
|
But rigsmith arent you making clones too... ------------- "what!?" |
Posted By: valve head777
Date Posted: 11 February 2015 at 11:17am
the real point is who is everybody trying to copy?  bet the ORIGINATOR whinces everytime he hears a sound copying his style. ------------- Freedom of choice, choice of freedom. |
Posted By: odc04r
Date Posted: 11 February 2015 at 12:09pm
I don't see the big deal, you copied a circuit, they copied a circuit. Unless youown IP relating to it then no-one is more right or wrong here. If I was in your shoes I would just market mine as the premium alternative to cheaper units and not be concerned with the competition. Mind you I'd also probably do it as a sideline to a proper job also which makes life a little easier on the soul. |
Posted By: rigsmith_electronics
Date Posted: 11 February 2015 at 2:13pm
| Cannot be bothered with it |
Posted By: DubSirenSpecialist
Date Posted: 11 February 2015 at 2:47pm
|
Rig smith, I like your builds. I have used a lot of them and I can't fault them. As the person who started this thread, I get the impression the whole "people like you" thing is aimed at me. Truth is I've contemplated buying yours before, however I enow building stuff as much as anybody else. All my other sirens are handbu it by me and I'm proud of them. I wanted to build the se1 as it's the only one I haven't got, and as much as I could easily go out and buy one of yours, I wanted to build my own just like the rest of them. Kind of a personal thing really, yeah I understand your a manufacturer who's making to sell, but all I'm doing is putting the feelers out there for a schematic. I'm just some lad with a soldering iron, like you put it, I'm no competition to you. I've built my own amps, does that mean every amp manufacturer is now getting the hump with me for not buying their product??? The comment I read earluer was spot on. Market yours as the premium option for the professional market. "Don't be fooled by cheaper copies" etc and people will make their own choice. At least youd've done whatever you could Just saying! ------------- The man of many technologies, the technologies of many men. |
Posted By: Masai
Date Posted: 11 February 2015 at 3:06pm
+ 1 ------------- Facebook: Masai Judah |
Posted By: rigsmith_electronics
Date Posted: 11 February 2015 at 3:17pm
|
I am not aiming anything at anyone other than the guy in Japan who posted this. Next the Chinese will be knocking them out in their sweatshops. If you want, Send a message to the website. I will sell you one not in a expensive metal box and give you support to re home it in your own style unit. I have done it before its no problem. I just don't want to give out my drawing which was a pain in the ass to get. My one is in fact double checked against Alpha Omega siren with the help of my pal Ben Alpha because the clones I was given had mistakes, it took me like 1 year to get a working copy and many favors from friends. my board is a tidy module you can lift it out easy. Its very simple to do, last guy I even offered him to send the unit to me if he had any problems and I would fix it (he though he has his working no support required because of the minimal wiring inside my units) I am also building them in biscuit tins and other random boxes for people who have no electronics knowledge when they ask. |
Posted By: app
Date Posted: 11 February 2015 at 3:24pm
You cant be serious?  I wouldnt worry about what people do in the far east. They have their own scene there which dont affect uk in anyway.------------- "what!?" |
Posted By: Masai
Date Posted: 11 February 2015 at 3:53pm
I'm always amazed when people come on here bragging that they are an electronics designer with a good reputation and don't need to do this for a living as they are better than this etc. No offence but it's only a mickey mouse siren that was originally meant for installing in public address systems to warn people people about emergency alerts and when to go home!! OK mickey mouse is a bit strong but it's is not like trying to copy a TB303 or a Moog. Why would a designer of any repute try to 'hide' his design of a 'cloned' njd siren?!  Just like when people where trying to make the perfect clone of a 303 in the mid 90s the general result is that you get a lot of people producing a load of farting noises all over their productions with these cloned boxes - and not even in any musical form of timing! I don't understand why you would get a noise box that sounds like a next man because the whole point of noise/siren box (IMHO) is to be signature for your sound - not a next mans but hey - each one to their own..... Dubs just do ya ting my yoot! I will always encourage anyone who wants to build their own equipment. So long as you follow general health and safety (for your own benefit) then it's cool as far as I'm concerned. Let's not get this thread all scoop-ish. This is the ROOOTS n CULTURE area after all..... Guidance n protection p.s Just seen the re-post by Rigsmith. Nice one!  As Jacob Miller once sang it's all about each one teach one Respect to ALL builders. Amateur and professional alike ------------- Facebook: Masai Judah |
Posted By: valve head777
Date Posted: 11 February 2015 at 4:31pm
|
Red Eye looks down laughing. RIP. Best siren I ever had the pleasure of bust'in. Peace and Love ------------- Freedom of choice, choice of freedom. |
Posted By: valve head777
Date Posted: 11 February 2015 at 5:31pm
|
ps, sorry if I sound like a grumpy git sometimes. reggae is and has always been my passion. Its a creative playground for me. it got me into building an amp, siren, speaker cabs and riddim to bust on it! I love hearing/seeing the creative input by other people. It inspires me. Keep it up Love ------------- Freedom of choice, choice of freedom. |
Posted By: Don Angelo
Date Posted: 11 February 2015 at 7:14pm
|
there is a jah tubbys SE-10 on ebay at the moment http://www.ebay.co.uk/itm/GENUINE-JTS-SE10-DUB-SIREN-ORIGINAL-JAH-TUBBY-L-K-/371254184272?pt=LH_DefaultDomain_3&hash=item5670794950 ------------- R&R Don Angelo |
Posted By: bitSmasher
Date Posted: 11 February 2015 at 9:55pm
|
"don't post plans because China will copy" lol! |
Posted By: Rico
Date Posted: 12 February 2015 at 11:53am
|
In facts its not even a 100% copy. If you check the schematic, and also the siren from the Japan guy, you`ll see that he has more switches/buttons the the NJD. Also the transistors are not the original ones, even if that is not affecting the sound. just my two cents, this happend long time ago in the soundsystem buisness, JTS is a clone of the NJD with a Sirene generator IC added. Lincoln has cloned the Links SEG 1, and so on. regards |
Posted By: antibypass
Date Posted: 12 February 2015 at 12:58pm
Hi, the transistors does affect the sound...i've tried a lot of diferent combinations, from old germaniums to classic BC's... depending of the transistors, the overall style is still an njd but...with a particular colour and response in the shapes... also there is some easy improvements and bendings to do that offers new sounds to have an "unique" siren...pots instead of selectors...etc etc.... like Rigsmith it tooks me lot of time to draw my own schematics, i opened and cloned a tubby's and a dubsonic and make my own mix from both... i started to experiment with transistors because values were erased on some "commercial "pieces i opened... for me an "online" shematic is a good thing bacause now we'll see some new improvments of this classic killer siren... even if the Japanese schematic is not the same than mine in some points ,i'll build one to see the diference... last point, i build those for my personal pleasure and sometimes for very closed friends... here is a link on one of mines: https://www.youtube.com/watch?v=lvAB_gq7inw Peace&diy
|
Posted By: rigsmith_electronics
Date Posted: 12 February 2015 at 2:06pm
| Cannot be bothered with it |
Posted By: rastan
Date Posted: 25 July 2017 at 9:44am
|
rigsmith, you're simply ridiculous. You act like you own NJD siren secrets and things but this is not. Be respectful even with China. Yes if China will copy will not be a tragedy. You think you are the best and this is fair. But be respectful with others. You clone, We clone, They clone. |
Posted By: rigsmith_electronics
Date Posted: 25 July 2017 at 10:24am
|
Just like yourself Rastan I decided to sign up for this forum and comment only on this thread because I was a bit emotional. Someone was telling me this on Facebook winding me up while lots of other stuff was going on in our lifes. Sorry. We wish to Remove all our comments but its not possible. This thread is from 2015 and people want to keep bringing it back to attention. As Professional engineers we rarely get personally involved, Sorry for coming here and airing views. Big mistake. |
Posted By: valve head777
Date Posted: 25 July 2017 at 12:01pm
|
Copy copying copied. Copy my bins. Copy my amp. Copy my pre. Copy my tops. Where the hell is an original sound system now?????? Copy me flippin valve amp. Listen to my riddim. Copy that too. Lots of people with no imagination. Go to a dance and feel ire. Don't have any respect for someone elses originality, just copy up dem style. And then feel empty. Buddhists call it "hungry ghost realm" ------------- Freedom of choice, choice of freedom. |
Posted By: n8935f
Date Posted: 05 August 2017 at 12:25pm
|
I have an original NJD SE-1 in full working order. Looking to sell but not sure what it is worth. Anyone have any advice ? Cheers |
Posted By: Dub Specialist Sound
Date Posted: 05 August 2017 at 9:56pm
|
i buy it bro, were you based ------------- Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE... |
Posted By: n8935f
Date Posted: 06 August 2017 at 6:14pm
|
I am in Birmingham, it is now listed on ebay. |
Posted By: lleviel
Date Posted: 06 February 2020 at 12:06am
|
Hi, this his my first post on this forum but i'm a long time reader. I'm rench also so excuse my bad english. Just to say, I build my own sirens, delays, spring reverb and pre-amp (not finished yet), can't wait to start looking at amps and bins, so there is still some originality, at least an attempt. And not a single clone, of course certain things can't be reinvented but anyway I prefer figure it out myself and learn things than just copy. And I can't understand why a so called "dub siren specialist" can't make a siren without the schematics from another guy... And all the difficulties about making a copy, that's a joke right?
|
Posted By: Nitz V1505
Date Posted: 05 November 2020 at 7:06am
|
Its the sound and tone of the unit.
------------- LET THE BASS ROLL LIKE THUNDER & THE TOPS LIKE LIGHTNING..... |
Posted By: vibes92
Date Posted: 15 August 2022 at 3:50pm
|
red eye,vibesmaster,russ d were the best copys recent probaly dubsonic i think rigsmith and mr law are ok attempts but the tone is missing in my opinion but good work same way
|
Posted By: valve head777
Date Posted: 15 August 2022 at 4:05pm
|
The rigsmith I used was slightly off key, which might seem picky, but actually makes a big difference when playing with music. Best siren I ever used was a Red-eye (although my current one is absolutely bang on, Thanks Ben Reverence sound😁) ------------- Freedom of choice, choice of freedom. |
Posted By: rigsmith_electronics
Date Posted: 10 January 2025 at 8:03am
|
Quite funny how many people signed up just to comment on this post and have a dig at us, 1 comment lol on the whole account. Dont mistake my distraction from Rigsmith as a lack of engineering skill. We have done many full designs over the years including full unique preamps in both Anolog and Digital, we just do not offer it for sale. Everything other builders are doing and more I have done for my own enjoyment, and then archived it as we have been to busy to put into production. With the NJD siren the pitch or key is not stable, this changes based on voltage. so the tone will change depending on the battery. here is a video to demo that. Maybe you used the Rigsmith with a power pack and voltage is a bit higher than originally intended, with a slightly flat battery it sounds best in my opinion. temperature also has an effect but its much less than the voltage. see this video to see how much it can vary from 3V until around 15V https://www.facebook.com/dave.rigsmith/videos/1281804923015830/?idorvanity=385796901567056&st=84yU5nyFkg3" rel="nofollow - https://www.facebook.com/dave.rigsmith/videos/1281804923015830/?idorvanity=385796901567056&st=84yU5nyFkg3 I dont really know what Key you want, Am is Quite common and has the same notes as C major and popular with piano as it has all white keys. Guitars play alot G Major / A major or the relative E Minor F minor due to open string notes. They also play Am and C Major which is popular with piano (maybe Am is the most used scale in dub music, maybe someone here knows). Horns prefer F or Bb Major and the relative minors. I think some keys will be more common but nowadays a lot of music is totally randomly made on a computer- I can set the Notes however you like so long as the voltage is stable. I can also control the harmonic timbre of the note and speed of the beat control. I charge extra for this sort of tuning setup, email the website with your specification and I will quote you. the tone of my design is just based on that I copied 10 years ago. However in around 2018 maybe I put a 4th tone which is higher than the original 3. So not all my sirens sound exactly the same there is even a interview with Jah Shaka who talks about his siren being modified and custom for him. so there is even some variations on what some people say sounds like a NJD depending who's unit your listening to. Lleviel I think you missed the original points I was trying to make. I grew up in Southend-on-sea not France, and even with many contacts in the UK dub sound scene finding a NJD to copy was not easy. The act of copying it was not hard. Finding something to copy was. People did not want everyone to have this sound and others where afraid to lone me the siren encase it was stolen or broken. Many of the clones had the part numbers scrubbed off or paint dumped all over them. I have a degree in Electronics so is not really hard to me to work out if somethings been painted and numbers scratched. But his is the sort of lengths the UK builders went to to guard that circuit. At the time we made the drawing I was maybe one of 3 people to ever make a clone. I was a bit pissed when someone posted the design online. I am sure some of the original UK guys who put paint all over the parts would be equally pissed about it. Take a look at this 12 years ago I made a NJD siren using 5 NPN transistors. I listened to audio clips and made a guess how it might have been. Shortly after I designed this I was offered other units to make a precise clone with 2 NPN and 2 PNP like you all know. So for all you who say I did not design a siren and bah bah bah. I was asked to make this siren by elders in the dub scene and I think I was very successful both with my own design and the Clone. https://www.youtube.com/watch?v=7Xr41gTftrw&t=221s" rel="nofollow - https://www.youtube.com/watch?v=7Xr41gTftrw&t=221s Anyways nowdays 100s of people make the NJD clones. I am still doing it http://www.rigsmith.co.uk" rel="nofollow - www.rigsmith.co.uk is our website. |
Posted By: ILuvDub
Date Posted: 29 September 2025 at 11:35pm
|
@rigsmith You're right. The intentional "gate keeping" of NJD circuitry has existed all along. You are not the first or the only person to not want this knowledge to fall into the wrong hands. And this type of thing has always been present in soundsystem. Protecting the identity of tunes for instance! It was about keeping an edge over the competition. The advent of the internet made sure that this information being easy to access was only a matter of time. I have made a couple of sirens from following schematics and using kits from builders. I love the knowledge and nuance in the possibilities with these electronics. I doubt I'll ever learn enough to make any design "my own" by changing it. But it feels pretty awesome to use one that you've actually made! Honestly, navigating data sheets and large semi-conductor distributor websites is a challenge on its own! I also have a few that I have bought from different NJD Clone makers. I happen to even have an original NJD! Unfortunately, I am not the first owner. Someone got a bit mixed up when they rewired the rotary switches. And there is also an issue with the pitch. All way too high. I intend to repair it. Just haven't gotten to it. I can tell that all of the components on the board are OG, which is VERY fortunate! Just thought I'd pop in here again and chime in. I am in USA btw. Cheers!
|