Stack Audio Auva Isolator

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

Man, the last couple of posts were over my head. I just care if it improves the sound quality.

ozzy

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

My recollection of when I owned Focal’s and installed the Townshend podiums was that the improvement was revelatory. So, I wonder how the Stack Audio Auva 100’s would compare to the Townshend’s? However, I won’t ever be able to find out because of the shape and weight of my present speakers.

I now have had a couple of days with the Stack Audio Auva 100’s and I think I can make some observations / comments comparing them to the Iso-Acoustics Titans. I should add that my speakers, Clarisys Minutes, are full ribbon and the dealer claims that the cabinets/frame do not vibrate and after-market footers should have no effect. But I did notice positive improvement with the Iso-Acoustics Titans anyway.

The Auva 100’s arrived very quickly from England in a rather nice wooden box(s) and were very easy to install.

Appearance wise, they are plain looking compared to the Titans.

Physically, they are a little shorter but wider than the Iso-Acoustics Titans. And I did install the spikes, just as I did with the Titans.

First off, I do think there is a short settling period. At least with my speakers, which weigh 230 lbs. each. Lighter speakers might react quicker.

Sound Quality: What it’s all about isn’t it? The sound quality differences that I have observed compared to the Iso-Acoustics Titans is there seems to be a little deeper bass and perhaps more depth, more of the image comes from the middle, between the speakers. But it does sound very natural.

Overall, a positive improvement, and I’m glad I purchased them.

ozzy

@ ozzy

Thanks for the update! I primarily listen to acoustic string instruments and some jazz and feel much less cabinet interactions, giving me a more spacious and dimensional soundstage after installing the AUVAs. 🎵🎶

Wig