PSC Audio

COMPANY PROFILE

Audio signals are extremely complex waveforms that are constantly changing in frequency and amplitude. These dynamic changes interact with electrical conductors and result in a characteristic called impedance. Impedance is the result of teh three basic electrical elements of resistance capacitance and inductance. These elements are used in audio circuits to alter msuical signals in ways that can be closley predicted. They allow us to change the volume or tonal balance in a preamplifier or send the appropriate signals to their respective drivers through a loudspeaker crossover. These same elements, which are present to some degree in all conductors, will influence the performance of audio cables by introducing the same types of changes to the music signal. Since the amount of resistance, capacitance and inductance is typically lower in audio cables than audio circuits, many people have concluded wrongly, that their effects are insignificant. A gross example of such an effect is easy to demonstrate. Some highly respected audio cables have a relatively high output impedeance. These two characteristics work together to produce a very mild high-frequency roll-off which can be easily calculated and measured. The audible result will vary from system to system and may be percieved as an imporovements beacause the sound is ''less steely and hard''. or degradation because the sound is ''dull and lacking in air''. Critical listeners using the same cable in different systems, or even the same system in a different room, can come to different subjective opinions as to how good or bad a particular cable may be. The logical conclusion is that not cable with relatively high impedance can offer consistent performance in s awide variety of applications. Our company is totally dedicated to the use of the best raw materials in the construction of all the cables in our extensive range. Unlike other silver cables, all PSC cables are made from silver bullion of the highest purity (99.9999%). Using our own custom special heating process we shape the bullion, taking special care not to cause any fractures in the wire. Using any machine for this process would inevitably cause these fractures to eventuate. In the course of mass production, others are using machines for the process of shaping wires (similar to those used in jewellery manufacture). This must lead to minor fractures. In jewellery making, this does not have much significance, whereas in high-end audio application we believe this to be critical (all fractures influence wire conductivity and crystalline integrity). The most important factors in cable production are: 1. Dielectric characteristics 2. Cable''s design and mechanical tuning 3. Termination 4. Conductor material In most PSC cables we are using small ribbon (AG series) or a combination of silver with gold (GOLD series) . Cables which are constructed of rectangular ribbon conductor are best for transmitting high frequencies and have the lowest conductive resistance (e.g. Noise Reduction Techniques in Electronic Circuits by H. Ott). In PSC cables the same conductors are used for both the plus and minus signal paths. Where a shield is used in a PSC design (the shield does not carry signal, except for Video cables ), a unique method of heating (multi - annealing) results in long crystal structures which guarantee optimum conductivity.

BUSINESS INFORMATION