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Mechanics and materials:
Like in the "old-fashioned" turntables, mechanics is essential to the definition and stereo perspective.
Our tweeters are all extremely mechanical solid systems, with heavy housing, well damped reflections, and heavy duty connectors for joining and soldering the leads.

The housing:
The housing is designed to avoid sharp terminals sticking out. That means you can place the unit on any surface without the risk of scratching your expensive polished speaker front while assembling/testing is done. You could even place the unit on your table in your living room without getting into troubles with your wife. The flange is rounded on the rear side of its edge in order to absorb wooden particles in the 4 mm deep hole in the baffle needed to drop the unit in, so that it can be flush with the baffle surface.
Front part and rear part (with the terminals marked + and - for correct polarity) are glued air tight together and can not be split apart. The unit is air tight from behind, so that the dome can not be influenced by any modulation from the woofer in the box.

The terminals:
Inside we use a fiber glass copper plated board with sealed heavy cup terminals, offering heavy soldering joints, to ensure the very best signal path to the voice coil. All connecting joints inside the unit as well as outside provide contact areas much heavier than the connecting wires. We recommend 2.5 mm² wires as connection to the crossover or the bipolar terminals if used. We have seen tweeters with small soldering eyelets buzzing and ringing. When they are soldered, they tend to loosen a bit coursed by the soldering heat. This one is safe. It maintains stiff and non-vibrating under all circumstances. This is important.

The voice coil:
The voice coil is wound with aluminum wire on an aluminum form, in a very special way developed by HIQUPHON, changing the wire turns into an extremely compact mechanical unit that can work up till 120 degrees Celsius without damaging, and can handle very high powers in dynamic peaks.

The cone:
Cone material has been carefully selected, and coating is applied in several steps, in order to achieve the very best combination of linear SPL response and lowest distortion. Together with linear phase response, crossover design is easily done. Coating the dome is made in several steps developed during many years, and is in fact one of the secrets of the high quality and production equality from batch to batch.

Damping of unwanted vibrations and of traveling waves:
The inner damping is a world of its own!
Damping of the cone suspension absorbs traveling waves from the cone, and prevents from returning into the cone making sum and difference tunes and break-ups (distortion!).
Venting of the chamber underneath the cone suspension is another important detail, and together with the chamber below the cone itself (which is vented to the special cotton wool damped rear chamber) we offer a treble unit which is top tuned and well damped at the same time, in such a sophisticated manner that you probably never would have thought it possible! A lot of effort has been invested here.

Power handling:
Finally we need to use a few words on power handling.
We feel safe to promise a 100 Watt power handling, but don't really like to be so precise on this value.
The reason is, that we don't like the term standard music, which you have to define before knowing the part of the total music spectrum handled by the tweeter. But there is no standard music! The music variety is tremendous.
With standard music the tweeter it self must handle only small parts of the higher frequency spectrum coming from a record, CD or what-ever. The energy in this high frequency area is relative low for standard music, but could be many times higher with some kind of special electronic "music".

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