The First STEREO CUTTER HEAD S001 BLUETOOTH

[zdenek]

You were so preoccupied with whether or not you could, you didn't stop to think if you should.

I'm with drdub on this one. There is no reason to have a wireless head on a machine.

I'm reminded of a talk I attended by Tim Vear when he was Vice President of Engineering at Shure Inc and head of the wireless microphone design team. The topic of the talk was "Wireless Microphones" and there were about 100 sound engineers in the audience. He started with, "Hey guys, you want a microphone that works? Get one with a cable on it." This was around the time of the crack epidemic in the USA and we all thought he was on crack or something. He continued, "Whats that? You cant use a cable? I guess we better look at wireless microphones then" I took that to mean that if you want reliability you put a cable on it. There is no reason you cant a run a cable or two to a cutting head that is fixed to a machine.

Let me know if I'm missing something.

That's right.
It's not difficult to connect a wire [many wires to the cutting head, i.e. 4 pieces to the drive coils, 4 pieces to the feedback coils, 1 wire to the knife heating, 1 common ground wire, minimally and nominally this gives us a minimum of 10 wires that need to be threaded through the shaft] The problem is that such a large number of wires creates complications for people who do not have the appropriate knowledge, such as the most important thing, determining the L and R channels of the drive coils and their phasing, and the Li and R feedback wires and their phasing, there is no problem with the knife heating wire. And in the case of a wireless head, you are not interested in this number of wires, you insert the cutting knife, secure the head with one screw and that's it, i.e. you connect the head to the computer via Bluetooth, that's all I am of course leaving out the interference caused by the cables [this is terrible if the head is with feedback, it is practically impossible to eliminate the noise of the mobile phone]
If the [Bluetooth receiver] device is high-end then practically it is super convenient.

[zdenek]

We came to the conclusion that each additional kHz is no longer an additional $50 but $500.

Why?
The degree of difficulty of making it, i.e. the accuracy and materials used. So: so that it is 9 kHz =1000$
11kHz=2000$
13kHz-3000$
15kHz=4000$
17kHz=5000$ [limit max ]

Hard to imagine a more fitting way to celebrate 20 years. Genius-level nonsense at its finest.
And yet, we’ve seen plenty over the years (and we’re bound to see plenty more in the future, for sure even increasingly so).

But this one? This takes the cake.

I don't think it's nonsense, my dear friend from the French Republic
To make something out of tweeters for $20 or even $100 a piece and call it a cutting head is nonsense and making money off someone.
That's why a thousand dollar head has transducers like you see in the picture, but it's without feedback [I'm showing you a picture of the magnetic system and the body of the drive coil, for comparison the Queen of England on a coin], On the side lies a tweeter and a burnt BMW coil, for comparison...

[themagician]

Unless your bluetooth receiver and transmitter is aptX lossless capable, why on earth would you introduce yet another codec (compression + decompression) in the signal path?

Concerned about what type of (cheap) SOIC / TSSOP amp is driving the cutter head, Class D?

I'll stop, so many questions to be had, afraid of the answers

[zdenek]

Unless your bluetooth receiver and transmitter is aptX lossless capable, why on earth would you introduce yet another codec (compression + decompression) in the signal path?

Concerned about what type of (cheap) SOIC / TSSOP amp is driving the cutter head, Class D?

I'll stop, so many questions to be had, afraid of the answers

You can always connect it as in the picture.

The method is not important as long as it is effective.

We used good amplifiers in the wireless Bluetooth head, effective with very low distortion, very low power consumption, wide acoustic band.

The head records great, you can hear it, I do not improvise because I do not intend to sell on a global scale. I show our latest invention in the club and the DJs are shocked with the question: how is it possible?, after all, amplifiers weighing several dozen kilograms are needed!
Effectiveness, efficiency, energy efficiency cause such an effect.
You can use amplifiers for $ 100,000, but the question is whether it will improve the quality of the recording?

[Aussie0zborn]

Suggesting one connects their cutterhead as per that photo ís disingenuous. Obviously they didn’t have the obsolete Harting connector and did very well in improvising. You could have posted a pic with the correct cutterhead cable which would negate your argument but you decided to go with this instead.

Yes ofcourse real amplifiers will improve the quality of the recording. Your Bluetooth cutterhead is an interesting concept but comparing it to real cutting amplifiers seems rather odd and ill-informed.

[zdenek]

To cut off the head of the hydra we did something to fate as you can see in the picture. The newest wireless head but the cable was cut and it was left as wireless with its own power supply, which is enough with a power of 550Watt x2 per channel peak 215V pp, 75Vrms [5 milliseconds] for up to 120 minutes of continuous average power work and with feedback and note: with wireless connection of the input signal monitor and the feedback signal. We have not tested it on copper dmm plates yet, but it will be soon. This is the third version of the head in a brass housing but wireless, estimated price is about $ 50,000 per piece [but will anyone pay that much money? ... maybe some napali sheikh ...]
I assure you that it is possible, it does not have to weigh 200kg or more ...

[zdenek]

Recording with an ultrasonic frequency is not a problem, the problem is reproducing such a frequency with a turntable cartridge.

[zdenek]

Here is the first real money printed with the Zdenec machine [in twenty minutes]

[zdenek]

Happy New Year, turners.
I hope it will be as happy as last year.
I wish you successful project concepts and implementation, and a chance for business success.