TWARON® Unicorn's Tail,
for “Silence in the Depth”
TWARON® Unicorn's Tail is a speaker cabinet filler for acoustic damping purpose which is produced by Thüringisches Institut für Textil- und Kunststoff-Forschung (TITK), Germany, exclusively for MUNDORF company, Germany.
Unicorn's Tail is predominantly made from cleaned and karded TWARON® fibres as user-friendly “endless” strings. It was especially developed to absorb and damp the lower audio frequency range (<1 kHz) in sub-woofers, transmission line tubes, insulation panels, etc. The material is easy to work with and does not age. The damping performance of TWARON® compares so favourably with that of all other known damping materials that it is today a “must” for many well-known developers and manufacturers of high-end speakers.
The extremely thin TWARON® fibres are karded into an extremely soft and dense so-called Horsetail Hair we named Unicorn Hair. In contrast to fibreglass and other plastic fibres, TWARON® conducts heat generated vibrations away very well and absorbs this type of acoustic motion energy in an entirely different manner than all conventional materials which are commonly used for damping purpose. Owing to the endless fibre tapes used in Unicorn Hair, the effective functional frequency-range is lower in comparison with the Angel Hair described below. It constitutes a significantly better alternative to the damping materials which are otherwise used in transmission line systems. In short, Unicorn Hair results in a very direct and dry bass reproduction in (sub-) bass cabinets, and in transmission-line tubes. The low-frequency vibrations are attenuated so efficiently that an extremely deep and clean bass reproduction “like by itself” is achieved.
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The following frequency/damping performance diagrams show how the low and medium audio frequency range can be adjusted very easily with the correct quantity of Angel Hair filling.
Fill diagram A) from top to bottom: 20, 10, 5, 2.5 grams/litre (logarithmic scale) Measurements: TITK
Fill diagram B) from top to bottom: 20, 10, 5, 2.5 grams/litre (linear scale <1000 Hz) Measurements: TITK
In contrast to other insulating materials, the insulating properties of Angel Hair are almost linear from 700 Hz. As shown in the diagrams, 3-10 grams/litre of volume in speaker systems is an appropriate quantity, depending on the damped frequency range and the size and design of the speaker cabinet. It is certainly never necessary to fill large speakers and bass reflex boxes completely! At best, this would have a negative ef-fect on the acoustics of your speaker system. For such cases, we recommend just filling the space behind the woofer. And another tip: by exchanging the standard BAF filler for Angel Hair, you generally achieve a further increase in the precision of the bass reproduction for existing speakers.
The diagrams C and D below show how absorption-specific room reflections in the midrange/ upper range can be achieved through filling of absorption boards or insulation backdrops with Angel Hair.
Fill diagram C) from top to bottom: 20, 40, 80, 150 grams/litre (logarithmic scale) Measurements: TITK
Fill diagram D) from top to bottom: 20, 40, 80, 150 grams/litre (linear scale <1000 Hz) Measurements: TITK