Stack Audio Auva Isolator


I just ordered a set of these. They are supposed to be better than the Iso-Acoustics or even the Townshend podiums for speakers.

Anyone try these yet?

Auva Isolator - Stack Audio

ozzy

ozzy

Showing 12 responses by theaudiotweak

Go stand in a corner and talk to yourself or put your head in a box. 

Do you sound better or just different?

I posted my patent number here early on about how materials and their shapes reduce resonance interference.

Shape is a vital component as is shear velocity. Keep buying the same old reconstituted ideas, materials and shapes as isolation can only exist in the absence of matter. Think about that for more than a minute. 

Tom D

Worst acoustics are presented by right angles stacked one atop the other with right angle transitions hooking them altogether.

The top nail in the coffin starts at the top with a nut attached to a machine screw with many adjustable threads creating more interference along its decline into more dissimilar materials inside of the stacked right angles. Delay Delay Delay. generates more interfering energy..Tom D

The fact that bearing material has been added to audio devices is nothing new or novel. It was used back in the 90’s to load inside and around audio conductors to provide an additional method of shielding and in addition provide a means to dissipate electromechanical vibrations from around the conductors. Many materials and geometries were tried along with their dimensional sizes. Any single change could be easily heard. Wrong choice of material and size could create over damping even around a conductor. At least 2 companies-built cables with these varied ingredients and properties. Star Sound Technologies now known as Live Vibe Audio and the previous Virtual Dynamics.

In the 50’s sand was added as a fill material to a hollow space in speaker cabinet walls, it worked so well it was a detriment. Example of over damping.

Lead shot was added to speaker stands and filled to the brim. They too were overdamped and shut down the space and air the speaker could actually project. Darkness was the result. Steel shot works really well as it has a lower mass than lead and is more reactive. Selection of bearing size is also important as to small an OD can create over damping as can filling beyond the resonance point of the tube or the rectangle being filled. Over the top is not always the best choice.

In my US patent 9858903B2 I show how different filler materials including magnetic spheres preferably gold-plated can act as a wave guide and affect the acoustic outcome of stringed instruments which includes and applies to speaker legs and feet. Shape geometry is also crucial in reducing and even preventing the occurrence of interfering energy returning back into the device in play. Right angles are bad for sound. Exposed threads and nuts pollute the signal with their multiple paths and continual collisions of shear wave interference that do return into the signal path. Many of these conclusions can be heard while listening in person to a stringed instrument most of which then can be applied to an audio component.

This patent was granted in 2018 and is still actively held.

TomD

Tone Acoustics and Live Vibe Audio

 

 

So if they apply for a patent in the good old USA they may be in violation of my patent for that method for legs and points under speakers and equipment. Also applies to resonance grounding of musical instruments. Isolation can only exist in the absence of matter. Oh they can’t grasp that reality. If they could then they would better understand how to make more and better music.TomD

Products such as these made with right angles sitting on points that have only one angle are inferior. Like a speaker in a box with no analysis or path to reduce baffle step or diffraction on any exterior surface in sight. Certainly none out of sight. That be the box Bob. Tom D

Your speakers aren’t in a box and they have rounded edges to reduce reflection back into the vibrating membrane.

That’s only 1 way to reduce corruption of the intended signal and reduce interfering energy that becomes a part of the musical chain...to your body, ears and brain.

Tom D

The floor of your room is at a minimum 1/6 of the entire surface area of all other planes of your room. The idea is how to best use that surface area to its maximum benefit. TomD

Let’s start from the top.

You see an adjustable thread.

Adjustment is good but threads exposed increases the time energy flows..not in a straight or uncorrupted line.

Exposed threads generate shear wave energy. Waves that travel in 2 directions. That means the energy from one thread to the other is reflected back and forth. This creates even more interference.

Below the threads are 2 locking nuts. Those have rights angles on their exterior and also generate shear.

If the nuts and the threaded stud are made of dissimilar materials those 2 at their boundary intersection also generates interfering energy.

Is the threaded stud the nuts, as well as the material of the outer diameter of the device made of the same material? Different materials different speeds.

The top and the bottom of the device are flat.

The flat top has no direct coupling to the device it is supporting.

Any energy that arrives at the top flat will be reflected back up at the device at rest. It will be reflected upward at the resting device thru the 2 nuts also with sharp edges and the corruption of the threaded stud.device..All that corrupted energy is now at the bottom of the component.

At the bottom you have another flat surface with 3 sharp points made of another material and speed.

These points have only 1 primary angle which means the floor bounce of energy will be reflected back up into the flat bottom of the large bottom of the disc.

I can’t see the inside but I know how bad or good tungsten can sound. Either by diameter, shape or added alloys. As a pure element tungsten unaided without an additional element makes for a musical image that is in your face as it climbs the wall and rests at the ceiling boundary intersection. Totally unreal and nearly painful.

Devices like the one reviewed mostly share all the above descriptions..

I have spent countless hours and thousands of dollars on my use of tungsten in one of my devices. I arrived at the very smallest cylinder tempered with the addition of another element cut and polished by diamond. That’s all I will share.

Thank you for your question.

TomD

 

 

 

Facten,

The nuts are threaded to a shaft that is attached to the device which is flat and creates the right angle where they intersect. This flat device acts as a backboard for interfering energy to travel back and for between the device and the component which pollutes the component.

Thanks for having me look at this device again as I see another source for interfering energy (Shear) to develop and that is the coarse knurling on the surface of the 2 nuts attached to the interference created by the threads of the shaft. More shear>>>

You could go to an online store such as McMaster Carr or even a local hardware store and find brass washers and nuts and a brass threaded shaft as superior substitutes for some of these knarly parts and hear a difference for yourself. Of course, the shaft may not be removable.  Or design your own as I pretty much told you what not to do and make a better one. I do have cryod micro bearing steel of various ODs that are superior in sound to that of tungsten because they have a lower shear wave velocity. I have tried many different materials in many different ODs or powders. Powders over damp the sound so the hard choice is to select from many sizes of bearings and their material makeup.

TomD

 

Which I have a US patent on fill materials for string instruments and legs and footers for audio gear. TomD

Leave you all with this. Shape is very important. 

Smooth shaped with hidden seams and joints can make a huge difference in how music travels. Be a brick as are most of the devices shown look, or be a bullet as are none of the devices shown look. Visible seams create shear and generate drag. Have fun. You will be in the same place again next year looking at the same thing different name with the same wrong understanding. TomD 

I am Tom the Audio Tweak  associated with Live Vibe and I have used the same 1and only moniker for the 24 years of posting on Audiogon. I have never spoken to Tommyu or know anything about that person. Tom