Question Do acuators and drivers exist that don't product a 10kz whine?

I've been interested in building a rig for a while, and am currently visiting my brother, who has a SFX. This thing is producing a noticeable (to me) 10khz whine. After 5m I have to switch it off and the whine remains in my head for an hour. It's pretty painful and I rather wish I was one of those that wasn't this affected by it. Tears.

I'm aware most people just put up with it, but for me, I don't think I could build one if it emitted that noise. Doesn't stop me from wanting to tho!

So the quest begins:
1) Are there actuators and drivers that don't exhibit this whine?
2) If not, are there are at least actuators that don't produce it? I can relocate the drivers if needed.

My main concern isn't cost... but I'm not sure I want to go to the dbox level of not-concerned-ness.

Speaking of which; that's the kind of rig I have in mind. 4 actuators (I have a P1 rig). Some kind of AC driver(s).

I've emailed PT-Actuators to ask them (the PT16 4DOF kit). Not sure what their AC driver is... but they do seem to supply one from what I can tell on their site.

For reference, here's a pic from "Spectrum" running on an iOS 8. I know the mic is probably rubbish in a phone; but it gives *some* idea I hope of the level of 10Khz I'm talking about.

https://www.dropbox.com/s/uokzezflmoohkwf/10khz Goblins.png?dl=0

smarter People than me will confirm yes they do exist but generally theres a price premium , these ASD15 servo drivers are great but meant for different market , in saying that they have also been victim of there own success in the DIY sim motion niche , cheap enough to make them atractive for our use but downside was internal design , cant fault it bang for bucks it does what it says in the spec LOL the 10KHz thing is the downside, thats if your sensitve to that frequency , bad hearing helps being older helps Bloody great earphone work though LOL but there may be light at end of tunnel as theres a rumor that manufacturer may be trying to correct this ..

use dc drivers and dc motors that run at a higher frequency

can the aasd drives run at a different frequency

There is communication with the AASD servos manufacturer engineers, to create new design units with 15khz frequency carrier on the IGBT, but if that fails to go through, I already allocated another brand servo drive that has adjustable frequency carrier via its panel...

Thanks
Thanos

He's probably moved forward already since this thread is over a year old and wasn't answered.

I was replying to @wannabeaflyer2