20 years ago I won the DMCs. This part of my set is STILL mystifying...

[@TuppenceHapeny]

Your Shure M44-7 is a variable reluctance design. There are 4 permanent magnet pole pieces, that form a magnetic circuit, which the stylus cantilever completes. So it is not a moving magnet design. Without any stylus, the magnetic circuit is "open", so picks up a nearby magnetic field, and the amplification is enormous. The rotor part of the turntable has multiple north/south zones, and is a direct drive stepping motor. Try circling a steel screwdriver near the rotor, to feel the effect! Have fun!

[@DJBlakeyUk]

@@TuppenceHapeny Oh damn that’s a different theory to all the others so far. Gonna dive into this one. Thanks!

[@mrreleasedj]

Just see this and i think your spot on here , the magnetic fields cross paths and amplify and yes its direct drive quartz stepping motor has multiple north and souths

[@zentriceggofficial]

@@DJBlakeyUk Yes, it effectively becomes a physical oscillator. Similar principle to Motor synth (uses spinning motors as oscillators).

[@lsdave]

This......the cartridge is essentially picking up a really bad square wave with rounded corners. But i think because of the position of the coils in the cartridge the left and right channels might be slightly out of phase. it would be interesting to see how just a single channel sounds compared to 2 channels from the cartridge.

[@DJBlakeyUk]

@@lsdave It does make an almost reecey bass sound. A Reece of course is slightly out of phase, so that adds up

[@ezedjay]

Best sounding "trick" by miles. You made a bass synth out of a turntable lol The minimal style of this re-do is awesome 🔥

[@DJBlakeyUk]

Thank you!

[@DerrickDixon-d8f]

i wonder if it is possible to play a tune by moving the platter back and forth instead of spinning.

[@theskronklbeep]

​@DerrickDixon-d8f maybe find a way to get it to actually spin

[@RobR386]

@@theskronklbeepcould probably do it with an adapter and large belt to the other deck 😊

[@roasty80]

I can't believe it. I have the dvd from back in the day and never forgot your set. Was only thinking about it the day and wondering what your up to. Glad to see your well.

[@weltschmerz88]

It's a moving magnet cartridge, so the magnetic ring on the platter will be inducing movement in the magnet in the cart. That's some serious thinking outside of the box! I'd have never thought of trying that.

[@DJBlakeyUk]

@@weltschmerz88 interesting!

[@TheDJFromGallifrey]

wow! this is a very nice way to explain it.

[@TheDJFromGallifrey]

@@DJBlakeyUk I'm going this path also. If you have a friend working in electricity, this person should be able to safely reproduce this phenomenon on a bigger scale so you can "visualize" it.

[@pablomiami]

^^^^ This is exactly why. pretty creative use of the tools available at the time

[@framegrace1]

No need to move anything in the cart. The magnets of the paltter are simply generating alternate currents on the cables. Those direct motors have multiple magnets in oposite polarizations. That generates square-ish electric waves, which produce a very rich sound full of resonant frequencies. As all the magnets are pretty close, all of them interfere each other producing an even richer sound. It's a really interesting casuality

[@michaelclarke4249]

Man, I lost my f**king mind seeing you perform this at both of these finals! Such a shame it didn't quite carry over for that world final ✊🏼 solid set to this day

[@DJBlakeyUk]

Thank you. It’s an interesting one because I was aware of how good Rafik and I.emerge were, and I knew that I was never going to win the world final. I also didn’t do great in the eliminations which is why I went on 2nd. By the time the final happened I just wanted to get through it by performing my set cleanly. I did that and therefor was satisfied. But I was only ever going to get 3rd place at best. In the end I got 4th, which I’m proud of.

[@apersonontheinternet8034]

The way the drive system for the turntable is set up, means that the magnet on the platter has lots of separate magnets side by side in a circle. This means that you have alternating magnetic poles as the platter spins. There is a corresponding set on the drive system underneath which push/pull the platter around when both are the right way up. With no stylus attached, the spinning magnets induce an alternating current in the cables remaining in the arm, in this case that produces sound at an audible frequency (dependant on platter speed). This is similar to the way a guitar pickup works, where piece of metal vibrates above a magnet that is surrounded by a coil of electrical wire. The exact tone of the note will be determined by the way the magnets interact with the cables and each other, plus potentially getting distortion from driving the inputs on the mixer. The wobble will just come from the platter being slightly uneven/wobbling itself.

[@caveymon]

Just guessing, since it is a spinning magnet fixed magnet, it is causing an inductive current, which is being picked up by the cables/prongs that usually attach yo the cartridge with the needle. This needle usually moves around in the grooves, and causes an inductive current (because magnets inside). And thus you’ve actually created a big ass pickup, that creates a low frequency audible as a bass. But that’s just my highschool physics classes talking to me. With all this magnetic induction and power generator stuff.

[@zach3634]

Easy answer.... magic. This is a dope trick you figured out. To use the turntable in a way that's not what technics intended, and making people bang their heads. It's the same outta the box thinking that got people scratching rekordz. As most people are saying, it's the magnet picking up the field from the magnetic platter. Cartridges act kinda like guitar pickups. Headphones, speakers, microphones, turntables, guitars.. all use magnets and can get funky when they get around other magnets. Dude.. I've read the yamaha sound reinforcement handbook cover to cover. I know how to build or repair a speaker. I've built my own speaker cabs. I know the "how's" but the "why's" are a complete mystery to me. How you take a magnet, a voice coil, and a cone made of paper, and it just works, accurately produces sound from an audio source? Don't get me started on vinyl. It's alchemy. Audio and music are the closest things to real life magic. As an audio nerd, this made my day! Thank you for sharing this! 🙏

[@borstenpinsel]

"Lorentz force" if you want to learn about the physical how/why and not just the acoustic reasoning. In layman's terms, magnets and electricity are related. Batteries have plus and minus, magnets have north and sound. If you run electricity through a wire, you create a magnetic field (electro magnet). And vice versa (a dynamo on your bicycle. Your wheel turning spins a magnet which causes electricity to flow in a wire..thus you got light). In more macro terms: movement and wind. Try walking in a straight line with heavy side wind. And in turn, when you walk quickly, you create "wind" that can move small objects. Now you know why the magnet moves. Why the moving magnet makes a sound, you already know

[@zach3634]

@@borstenpinsel eeyyyy yo! thank you for the detailed response 🙏 i've never heard of lorantz effect, but im about to fall face first down a google rabbit hole about it. 😅 im a dumb musician, but i really do want to understand how this stuff werks on a fundamental level. Thanks again for enlightening me to a previously unknown path to understanding

[@curtsk19]

What the hell am I watching 😂 madness. Also can't believe you can't play your own set due to copyright lol

[@therealchayd]

I understand why this is happening, but not going to waste space when other's have done a good job of explaining it. But damn, I have to say that's some serendipity right there! Nice find!

[@DJBlakeyUk]

Yeah it really is. Pure fluke discovering it

[@mishmasta]

Use some magnetic field viewing film on the platter magnet. It should show you the location of the magnet poles, which induce the oscillating fields in the cartridge windings. Amplify those oscillations and you get your wobbly bass line!

[@TheAquabears]

The cartridge is just a mechanism for transforming analog movement on a record into electrical signals which get passed to the amplifier. When you remove the cartridge, the wiring that those signals would travel along are still in the tonearm. Placing the tonearm within the rotating field of the magnet on the platter will generate induction in that wiring, which will then be passed to the amplifier as sound.

[@skum73]

I had seen some of these but that Dj Woody clip blew my mind.

[@_bxx]

Holy shit it's you. That was very cool thing, always loved it and was do amazed. So glad this video pops up on my feed! Greets!

[@mark_spit7839]

Got an idea for you…..leave the platter on normally, but take the platter off the other turntable and place it on it upside down so you can still use the magnet. This will not only give you great stability, but also allow you to use the power and the pitch.

[@DJBlakeyUk]

@@mark_spit7839 How did I not think of that! Will try it later but my initial thought is that it might be too high for the tonearm to clear it.

[@mark_spit7839]

@@DJBlakeyUk I just tried it on my 12’s and 44-7 and while it does work, using the turntable’s power barely gives any sound - it spins too slow - it needs the high RPMs like you originally had. The tonearm height adjustment has to be at the highest as well for clearance. At least this way it’s more stable. Cool experiment tho!

[@Lo_Scum]

Yooooooo that’s so ill. Love the old Dmc guys that would physically do something with their routines! 🤯🤯🤙

[@travismilberger4906]

A conductor, a magnet, and motion are the three things needed to make electricity. The spinning magnet on the plater is inducing a magnetic field into the conductive coils of the cartridge, thus producing a voltage that is played back through your mixer/speakers as sound.

[@cchladny]

It's called Induction. It's exactly how a generator works. Passing a magnet over a wire (inside the headshell) makes a power current flow in that direction.

[@RetemVictor]

Yup, it should work without the cartridge installed as well.

[@cchladny]

@@RetemVictor less effective, though, as it wouldn't be a full circuit. Possibly a different interesting "instrumental" sound though

[@offroadflow]

"Wire" is not the term. It's COIL

[@djbenjiuk]

❤❤❤ I was there the night you done this trick at the Hammersmith Apollo I think…. You signed my copy of cut master swift breaks that I bought at the event! I remember we went home the wrong way round the M25 and went to my mates house and played on his decks till the early hours trying to recreate what you had done! Thanks for being such an inspiration for a generation of DJs

[@DJBlakeyUk]

@@djbenjiuk Thank you! Did you manage to recreate it that night?

[@djbenjiuk]

​@@DJBlakeyUk It funny because i phoned my friend - who's house we went to.. He had stanton carts and we couldn't work it out. i think we tried it without the needle because he was scared it would break the tip. He remembers that night, though... i wish i could post the photo of my signed Cutmaster swift - battle breaks volume 4

[@MrABZEE1]

I was there the night you and Go won the world title a year or 2 before at the Millenium dome. I used to hang with Troubl' from France

[@UziMusic]

Hahah bro I was watching your routine the other day.. always loved that part, the dub be good to me into the 1 bar roll is perfect

[@DJBlakeyUk]

@@UziMusic 🙏🏻🙏🏻

[@djpiles1982]

The stylus uses a coil in the cartridge and a magnet on the end of the stylus (inside the cartridge) to convert the bumps in the groove on a record into an electrical signal which can be amplified. The magnet in the platter is inducing a electrical current in the coil in the cartridge.

[@rundeckardrun3985]

reminds me of the scene from The Hunt For Red October, where Jonesy the sonar operator takes the recording of the "seismic anomaly" and speeds it up 10x "That's gotta be man-made"

[@djdedan]

That giant magnet on the platter is ALWAYS interacting with the needle, it’s one reason why belt drives are better for sound quality but of course they suck for djing tho some djs have used thoren belt driven tables (namely larry levan)

[@TranquilizedHorsefly]

never rly watched the DMCs but my god, this is something else, never mind thinking outside the box, thinking outside the platter

[@DJBlakeyUk]

Thank you 🙏🏻

[@TranquilizedHorsefly]

​@@DJBlakeyUk legend! i gotta give this a go actually blew my mind these discoveries always tends to be a "one night at home" situation with a few beers

[@N1h1L3]

*inside the platter

[@TranquilizedHorsefly]

@@N1h1L3 well done mate, you get a blue peter badge for that, top lad.

[@jamiealite]

The amplification of the tone arm picked up the magnetic field

[@tylerdurden1030]

And I was there to see it….. what up Blakey…. It’s the American AKA Nobody that ran in the hip hop crew show some love with phd and Tokez at Ruby Low

[@akasickform]

That's just the electromagnetic inside the cart reacting to the change in magnetic field from the platter "EMI" or electromagntic induction follow the exact same principle that youre showing here The magnet has a magnetic feild When the cart (electromagnetic coil) passes through the magnets feilds it generates AC signals which are amplified to an audible level

[@UziMusic]

Does the magnet change polarity though? Seems the field of circular magnet wouldn't vary much.. do you know the coil I'm m447 is powered AC or rectified?

[@cliffyfromboro]

Holy shit I had that years finals on DVD. Watched that so many times. I remember Daredevil i think it was always doing that finger thing between beat juggling. Was such a good finals and you win was fully deserved!!

[@DJBlakeyUk]

🙏🏻

[@benbrick]

Yes Blakey! Iconic!

[@djneils100]

So DJ cartridges are what's called "moving magnet" cartridges (as opposed to 'moving coil') which means the stylus is attached to a tiny magnet that moves inside a tiny coil that is fixed inside the main body of the cartridge. The magnet moving inside the coil as the stylus tracks the groove is what causes the electrical signal to be generated in the coil and sent to the amp to be turned into sound. Without the stylus the cartridge still has the coil and so as the powerful magnets in the platter spin they induce electrical signals in the coil which we then hear as that super-cool bassey noise

[@DJBlakeyUk]

Wow thank you for the explanation!

[@djneils100]

@@DJBlakeyUk no probs - that's an utterly sick trick you did there - next level 🙏

[@mikee6666]

Very similar to how electric guitars work. Sort of, lol.

[@TuppenceHapeny]

@djneils100 A third type is moving iron. So the coils in the cartridge are wound onto permanent magnets, which come together. So focusing the magnetic field onto the cantilever, with a diamond stylus fixed to one end. A Shure V15 phono cartridge is this design. If you remove the stulus assembly and try attract a tiny piece iron to it, you can see the cantilever is not magnetised.

[@IncoAno]

My question would be: why does it normally *not* pick up this sound? I think there has gone quite some engineering in keeping these magnetic fields out of the pick up element in normal operation. Always amazing how much thought went in these devices that "just work".

[@harrymoschops]

Cool sonic discovery! When viewed through magnetic field paper the polarization of the technics ring magnet alternates radially dozens of times, another experiment would be running a cassette tape head over the magnet to hear if the effect is replicated that way.

[@DJeimaXe]

*The magnetic static sectors are pulsing through the tone bars amplifier.*

[@MattFitchett]

What your hearing is the iron crystals moving in the cartridge magnets in reaction to the larger magnet, the crystalline structure is moving in relation to the magnetic field of the larger magnet being pulled and repelled making the iron crystals in the cartridge head oscillate, this in turn sends the signal to the speakers giving the oscillating bass tone.

[@geniferteal4178]

1:19 reminds me of a time I just caught the end of when I was hitting the clubs. All those turntables. Nowadays, it seems like you just get two (or none). Where can I find music that's mixed multiple songs together, not just two, at a time (for the most part)?

[@antichicmusic]

Genius, you made a magneto mechanical synthesizer😃

[@deejaygo294]

Proper original 🔥Whole set was like a 6min turntablized Fabric Beatdown Room 1 set💣

[@DJBlakeyUk]

@@deejaygo294 Yes Go! Thanks mate

[@blakasmurf]

Like moving coil and moving magnet cartridges. You've created that circuit another way with a moving magnet and then a pickup that is sensitive to magnetic fields moving around. I'm curious... If you stop the plateau do you get a constant tone?

[@DJBlakeyUk]

I believe it doesn’t make a sound when it’s still but there is a chance it makes a quiet one that I missed

[@blakasmurf]

@@DJBlakeyUk Ok, was kind of wondering if you've get like a DC offset, so if say you record with the cartridge on the magnet, and nothing else moving, is the signal lifted away from zero in anyway. But yeah without taking apart an M44-7, my guess is because it's a moving magnet cartridge actually moving a magnet even with the stylus off still got a sound 'cause at that point it's kind of like a guitar pickup. Does the pitch lower as the plateau slows down?

[@eatshrots]

Blakey! do you know how many damn times I've watched your 2004 performance???? COUNTLESS! one of the sickest! In my opinion, that's my favorite year of DMC

[@DJBlakeyUk]

Wow thank you! 🙏🏻🙏🏻

[@DennisHartmann]

Dear DJ Blakey. May I sample the sound which is playing from 3:44 to 4:02?

[@DJBlakeyUk]

Go for it! Would love to hear what you make with it

[@shokdj1]

All the stylus does is move small magnets up and down and side to side in the cartridge. The cartridge works a bit like a microphone so two coils picks up the movement of the magnets sending an ac signal to the pre-amp. By spinning the platter you’ll have and alternating magnetic field coming from the ring magnet and the magnets inside the cartridge will be vibrating all over the place

[@Testgeraeusch]

This is a beautiful application of magnetic induction; My collegue is currently trying to design an antenna to drive magnetic dipole transitions in a solid state samples; I sent him this as an inspiration. One would think that coils are required to pick up an electric signal, but in reality anything can pick it up, the coil just amplifies it. In this case the magnet is so strong that it doesn't neet that. What you hear is the real-time spinning of the magnet plus overtones and some modulation form the wobbling of the arm and the plate.

[@DJBlakeyUk]

Love this, thank you!

[@Testgeraeusch]

@@DJBlakeyUk Have you released a track or EP with this bass effect?

[@DJBlakeyUk]

@@Testgeraeusch I havn't!

[@Testgeraeusch]

@@DJBlakeyUk Do you want to? :)

[@mchelremonduelaz7574]

Imo, you’re amplifying the vibration from the magnet which causes an oscillating sound. Like how plate and spring reverb works.

[@vinman3057]

Rattle played best ever set 🙂 yours was on it. Ive played it a thousand times

[@assistantto007]

What you can hear are the lines of force of the magnet on the underside of the platter at they interact with the magnets in the cartridge...

[@tonybeatbutcher]

Wwoww that was you!! Cool trick, still remembering that.

[@DJBlakeyUk]

@@tonybeatbutcher Thanks! 🙏🏻

[@juanhamilton_]

Your impression is most likely correct. This operates basically the exact same way an electric guitar pickup works. When you spin the magnet, you create a modulating magnetic field, which is being passively picked up by the leads in your cartridge. People have made similar sounds using fidget spinners and guitar pickups.

[@djstuc]

Insane man… it reminds me of an old skool track but can’t remember which one.

[@DJBlakeyUk]

@@djstuc Sounds a bit like early dubstep I think

[@djstuc]

@@DJBlakeyUk I’m thinking the opening to a really old 90s breaks or hardcore track.. leave it with me it’ll come back eventually haha.

[@marcoose777]

The spinning magnet on the back side of the platter is creating a small (but varying) electrical current current by electromagnetic induction. The rate of spin influences the 'tone', a quick sample reveals the fundamental starts at 60 hz and drops to about 40 hz as the rotation of the turntable slows. From Stanford Magents: `Magnets generate electricity through a process called electromagnetic induction. Here's how it works: Relative Motion: To generate electricity, there must be relative motion between a magnet and a conductor (usually a coil of wire). This can be achieved in various ways, such as moving a magnet through a coil of wire or rotating a coil within a magnetic field. Magnetic Field Interaction: As the magnet moves, the magnetic field around it changes relative to the conductor. This change in the magnetic field causes the magnetic flux through the coil to vary. Induced Voltage (EMF): According to Faraday's Law, this change in magnetic flux induces a voltage in the conductor. The faster the change in the magnetic field (i.e., the faster the relative motion between the magnet and the conductor), the greater the induced voltage. Electric Current: If the conductor is part of a closed circuit, the induced voltage drives an electric current through the circuit, generating electricity.`

[@bubz3t136]

Hey man, I used to be obsessed with DJ battles, between '95 and '05, and I always thought this trick was the last great innovations before the battle scene started dying. I battled myself, between '97 and '03, and I think I may have been at the same regional heat as you in '02, in Liverpool, but I may be wrong. I remember Itchy was definitely there - isn't he a big time producer now?

[@DJBlakeyUk]

@@bubz3t136 Yes that was me. I was there with Itchy, now known as Hudson Mohawks. What a career he’s had 🚀

[@tomaszradomski4460]

Magnet is moving, so there is a changing magnetic field that induces charge in the wires ;)

[@fabiofzero]

The cartridge contains a magnetic pickup (not unlike those found on a guitar) made to pick up electric currents and convert them to an audio signal. Whenever you move a magnet you create an electric current, which is then picked up by the magnet inside the cartridge. It's that simple!

[@DJBlakeyUk]

@@fabiofzero Yes it seems like that may be the answer, a few others have said the same. Tbh, I still don’t really get it 😅

[@aadd3538]

Induction is making that sound

[@tonybeatbutcher]

Isnt the direct drive part sending to energywaves to the magnet? Try that without the powersource, maybe. Or push on 'start' when power is on and check with the 33/45 setting if the sound if changes. That will tell you a lot.

[@DJBlakeyUk]

@@tonybeatbutcher That’s super interesting I’ll give those a go

[@tonybeatbutcher]

Cheers, bro. Greetings from a turntablist. I was thinking if would make sound on directly on the direct drive part or with other magnets

[@MRSTU1210]

Definitely so magnetic magic going through the cartridge very cool subbed

[@DJBlakeyUk]

@@MRSTU1210 🙏🏻

[@DJ_AMO_UK]

The cartridge is an MM which stands for Moving Magnet. I assume the platter magnet vibrates the internal magnets of the cartridge.

[@DJBlakeyUk]

@@DJ_AMO_UK That’s super interesting thanks man. Gonna look into it

[@djgonz123]

To this day that stills blows me away seeing it. I was like this dude is a madman and I loved it. Thank you for sharing this. Only thing I could think of is that it’s still picking up resonance from the cable pickups from the cartridge but I’m just guessing

[@DJBlakeyUk]

Thanks Gonz! Hope you’re good 🙏🏻

[@djgonz123]

@@DJBlakeyUk yes sir. Doing great

[@BuiltbyFellony]

A friend of mine was spinning some acetates of his own records that he'd had cut that week for a set, someone came along and did the most aggressive rewind ever and something happened to the stylus which produced a similar effect for the rest of the set, just an extra, constant 40hz rumble under everything 😂

[@danny8oyr6]

Ive got this on dvd from back in the day!!

[@bastiaanschouwink3562]

The harmonics on that bass are incredible

[@ricktbdgc]

I have a technics 1200 mk2.. just tried it, totally worked and sounds cool

[@DjFrankDogg]

Simply vibration because the cartridge is making contact with the four inner contacts with the spinning platter picking up vibration noise.

[@KyleWalz]

Giving a different perspective, guitar pickups produce sound by vibrating metal near magnets. That's essentially the mechanics going on here to make a sound that is electronically picked up--just moving the magnet near wires instead a guitar string over a pickup.

[@johnharris6589]

I find it amazing that this was discovered by accident. It’s defiantly caused by the magnets moving past the coils in the cart if it mm or mc I don’t know but it makes no difference it only needs motion between any magnet and the coil in the cart moving or fixed. It wouldn’t work with a ceramic pickup.

[@johnharris6589]

That’s definitely caused by not defiantly caused by sorry don’t know how that happened.

[@gattearthrid]

The needle transfers kinetic energy to electrical. The magnetic feild is being transferred similarly

[@shockwave77598]

The disc is a magnet with multiple poles. Lots of N S N S poles, so the electromagnets in the machine can turn it. your magnetic pickup coils in the cartridge are picking up the motor magnets as it spins.

[@richnorris1061]

Alternating magnetic field inducing a current in the head windings 👍🏻

[@DJSWORDZ]

super dope!!

[@enemdisk6628]

btw. you still looking good 20 years later

[@samwu1836]

Holy smokes this KZbinr invented wobble house before everyone else did.

[@DJBlakeyUk]

@@samwu1836 😅😅

[@samwu1836]

@@DJBlakeyUk

[@nickgnjatovic9535]

OG tekkers is how it was made

[@AircraftVids]

It is insane to think that you yourself could get copyright striked for playing your own set. Madness.

[@DJBlakeyUk]

Tbf it would be because it's a Dizzee Rascal track

[@I8one2Many]

I dont know but that wss sick

[@romeisfallingagain]

a ring magnet inducing a current in the pickup coil

[@Musicdudeyoutub]

Very interesting

[@ysg4332]

is that i luv u by dizze rascal at 0:30 ?

[@inverse6556]

I luv u... I, I, I I I, I, I... I... I luv u I luv, I luv, I luv, I luv...

[@rodneylief]

Achievement unlocked.

[@kingklabe]

When you spin a magnet you create an electromagnetic field. And that's as far as I'm willing to go without googling it and pretending to know what the hell I'm talking about.

[@Djremysounds]

Im assuming its translating the vibration into audible feedback via the cartridge wiring connected to the tonearm.

[@georgeprice4212]

Dunno, but sounds killer! Out of curiosity, did you try a little bit of phasing/flanging with that?

[@DJBlakeyUk]

@@georgeprice4212 I haven’t actually but that would sound good!

[@georgeprice4212]

@@DJBlakeyUk go for broke!

[@amiganer681130]

Explanation is easy like that: If you connect electricity to an electric motor, it turns. If you turn the electric motor, electricity comes out again. The turntable's magnet moves, which induces a small current, and this current then produces the sound via the record player's pickup. (Google Translation from German)

[@MontyDodge]

This is a guess, opposing poles?..

[@nickloss2377]

Easy explanation. That sound is the exact sound of interference that live sound and studio sound engineers try to filter out in their cable management.. if you run a long unbalanced cable, you're going to get RFI ingress polluting the signal chain.. You're also going to get strange artifacts that come from other properties of the cable such as capacitance and inductance.. that happens especially when you're coiling long lengths of cable and then running a signal through it.. usually it is on the low end of the spectrum. Engaging a LPF on the input mixer can help with this.. although using differential signaling (aka balanced cables) has been the best solution to this. The reason you're not needing a needle to hear something on the output stage is because those magnets are spinning around which means that there's a magnetic field (a positive and a negative) oscillating and affecting the four very sensitive very thin and very electronically susceptible wires in the cartridge that connects to the output of the turntable. Basically you're putting very sensitive wires in a oscillating magnetic field and plugging that directly into your amps.. It's going to be noisy. A few tweaks to the EQ might make it more or less pleasing to the ear.. But it's still a magnetic interference that is playing back because those 4 tiny leads in the cartridge our designed to be very very sensitive. Sound is simply electricity.. whether it be from the needle vibrating in the grooves of the record or transmitted via transformers which don't actually have the physical connection to one another, it's still a way of transmitting electricity.. And that's all it is you're creating an electrical current in those wires.

[@nickloss2377]

Well that's my guess. Audio engineer here...(Recording engineer by education, but live sound engineer by trade..kinda the same shit...but live sound has wayy more challenges with feedback and interference and fuckin noise ---but not an electrician..so I could be off base.. But I'm pretty sure what you're hearing is noise from that magnetic field.. And the reason you don't need the needle is the same principle used in DI boxes which use transformers to clean up a signal with ground hum ..ie lifting the ground)

[@DJBlakeyUk]

@@nickloss2377 Love this, thank you for the detailed explanation. I had a hunch it was magnetic fields

[@akasickform]

It's not RF it's EMI caused by EMF...

[@tonygardner4077]

Awesome bro

[@djgathox]

god bless the DMCs DJS

[@rainbowgaming8441]

the tone arm

[@UXXV]

Props bud. No idea why KZbin recommended this but glad it did. Also what voodoo are you using to look better now 2 decades down the road!

[@DJBlakeyUk]

@@UXXV 😅😅🙏🏻 running and no bs food

[@UXXV]

@@DJBlakeyUk very impressed bud - I am a sh1t DJ and cant scratch worth a F but always was in awe of the DMCs. Keep the tables spinning!

[@bronxcartel6193]

My dude just made an analog oscillator 😂

[@Pstavridis]

BIG Esr , magnetic field . Your cartridge is sensitive to the magnet

[@tayzzed]

As the stylus interaction with the cartridge is an electromagnetic pickup of vibration realyed from the grove of the record the magnet on the bottom of the platter is interacting with the pickup within the cartridge and that is where the noise comes from. Hope that makes sense.

[@SeanFlora]

Magnetic, mate! If there's a magnet moving in the field of the stylus head, it creates a signal - same as if the needle was moving its little magnet within that cail.

[@SeanFlora]

Nevermind. I'm convinced you DO know the answer and you're just pretending to be that thick.

[@larrydekat030]

so does it only work with a shure stylus? i suppose not since i read just aout the 4 cable points right?

[@DJBlakeyUk]

I actually haven’t tried it with any other. I wonder if it’ll work with my Jicos. They’re brand new though so I won’t be trying it

[@gr00veh0lmes]

Why don’t you link the DMC performance in the video description?

[@DJBlakeyUk]

Done!

[@squareglobeplus]

so fire

[@SBF_FTX593]

Magnetic sensor in the cartridge.

[@craigburton4447]

I think it's creating a simple induction motor because it's a rotating magnetic field, it kinda sounds like a motor

[@innerlude]

Who else works on Tech 1200's and is cringing the entire video? The Reason? Never turn on a Tech 1200 without the platter magnet in place. However, super kewl trick. Just don't turn it on.

[@DJBlakeyUk]

The guy who serviced these recently (Jay at Just Technics) isn’t happy with me tbf. But I had to revisit this one!

[@rooma2444]

Hahahaha nah this is Elon-esque ​@@DJBlakeyUk

[@rooma2444]

Proper nice. Thanks. God bless 🙂 . . ​@@DJBlakeyUkcan I ask you a solid, could you sample or master one of my prayer songs? Thank You. kzbin.info/www/bejne/d6S2l5aYYq2rnZIsi=Cr5bdYz4RZRoN5BD

[@innerlude]

@@DJBlakeyUk 🤣🤣🤣🤣🤣🤣🤣🤣🤣💩💀

[@esmwakavi]

Wicked!!! 🔥🔥🔥🔥🔥

[@UnemployableFakeGuru]

Well... you spin a magnet across a coil... nuff said.... that's how electricity works.

[@tiNtiN11]

So sick man, people spend thousands on modular synths to make such a sound 🤣