String Theory HiFi isolation feet
At Solidair Audio we are very impressed with the performance of our Gyrodec Pylons and have had great feedback on them. We therefore decided to have a look at developing the concept to produce some new versatile isolation feet. After much experimentation and many prototypes, we came up with String Theory HiFi isolation feet. These feet have a wide weight capacity range, so lend themselves to most HiFi isolation situations. We primarily developed them to be more stable under speakers than magnetic levitation feet. They have a good weight capacity too, so lend themselves well to this application. They can be used in sets of three for most applications. Visually two feet at the front usually looks best. It may be better to use four feet on heavy amps due to weight distribution and on speakers for stability. For simplicity the feet are sold individually so you only need to order as many as you need, but you will need at least three.
They give a clearer sound to HiFi components, with better instrument separation. Some feedback suggests that these feet give a better dynamic response than their magnetic cousins. If your system is bright or hard sounding, the magnetic option would probably be better as they tend to give a warmer sound. (Transistor based components tend to be harder sounding , so magnetic levitation is usually better under them.)
We ran some tests under speakers and the results were quite superb. “Where has the speaker gone?” and “It’s just a wall of sound” were two of the feedback comments. It was like the sound was just in the air and not coming out of the speakers at all once the String Theory feet were underneath. We were very pleased with the results. The speakers and turntable used were high quality, but the amp was a very modest transistor amp which made it even more impressive.
The overall diameter of the feet is 52mm (2 inches) and height around 30mm (1.2 inches). They weigh around 55 grams (2oz). Their load capacity has been tested up to 30Kg (66lb) for a single foot, but they look like they could take more. The main body is made from a carbon fibre tube which hold an ebony foot on a braided nylon web. They are very strong and do look rather splendid. They can be used as they are on a hard flat surface, or with a shoe (coaster) on a soft surface like carpet. The shoe adds 3mm (1/8 inch) to the height and they are sold separately as they are not always needed.
The String Theory HiFi isolation feet have less movement in them than our magnetic range, so lend themselves well to speaker isolation. We are also working on a new carbon fibre suspension bridge and other types of suspension bridge.