Prana Distribution

Hi All,

I'm the owner of Prana Distribution.  Idler-21st, (who began this thread)  is the owner of an idler turntable company called Semper Sonus based in Portugal.  He's a very talented engineer who makes a very interesting turntable.  During the pandemic we did something we have never done.  We ordered a product without first auditioning it.  We ordered 4 of these tables out of excitement for an idler table that was engineered from the ground up (not based on a vintage table) that was also somewhat attainable. (it can be had, with an arm for around $10k)   

We're still excited about it.

We do have some internal issues to work out with Paolo over the coming weeks which will hopefully quell the need to air our business frustrations in a public forum. I understand his frustration and anger and likely feeling as though this was his only recourse.  I hope to amend that premise.  We've been in business in one form or another for 14 plus years.  We've managed to maintain good relationships with many manufacturers for most of those years. 

I want to publicly apologize to Paolo for not being a better communicator where this instance was concerned.  I hope you take a look at his table.  They're really quite something.  We don't have them on our website yet, (I wanted to sort some things out with Paolo first) but you can find them here

We do have them in stock.

Regarding our addresses.  Our LLC is listed at an office in Cambridge.  Something that was common practice in my previous professional life, which I just kept up.  We have retail square footage in Gloucester, MA and in Medford, MA...both by appointment only.   There is another local site slated for 2024. 

I will close this matter/thread for the moment... I'll give some additional time for Fred to sort HIS "issues" with me.

Well, that was interesting. Good luck to all parties. 

Question to @idler-21st  - surely the point of an idler drive is to provide as much torque as possible to give it that idler drive?

At the same time, the right amount of torque provided – i.e. the absolute minimum required at all times – is continually adjusted based on feedback from the current levels required by the motor.

Not as much torque as possible.

You want enough torque to keep the speed constant, regardless of load variations. However, having that, there’s no point in feeding more torque, it would only potentially create additional vibration or noise.

So, speed is monitored several hundreds of time / second, and when a speed deviation is found, more (or less) torque is applied.

It’s important to note that this kind of speed control is very different from the crude systems employed by manufacturers in the 80’s ("Quartz control" do you remember ?). Algorithms are now much more sophisticated (courtesy of the tremendous computing power available today), and they try to "approach" the correct speed smoothly, without over or under-shooting.