IWhat difference can a power supply make?

A few years ago the Cistine Chapel was cleaned for the first time, revealing the true detail, colour and perspective of  Michaelangelo's masterpiece.

A point has been reached in the evolution of circuit design where noise generated in the regulation of voltage to the key components within even the best hi-fi, is greater than the lowest signal levels captured at a recording. Additionally the performance and speed of the device they supply is compromised by the accuracy and slowness of the regulation.

It is time to clean away the 'grime' caused by the noise and the other shortcomings of the standard voltage regulation, to hear our recorded music collections as they were meant to be heard.

For those reading this of a non technical disposition, an analogy might be useful to explain regulation.

A pressure regulator is fitted to our domestic gas supply in order to smooth the swings of mains pressure so that our domestic appliances run safely. The reasons for controlling voltage inside our hifi are broadly similar.

The main problems created by even the best electronic regulators are:

1. NOISE When a regulator controls the voltage of an amplification device, noise finds its way into the gain stage. The best regulators have noise figures equal to the voltage output of some moving coil cartridges. The circuit has no choice but to amplify this noise along with the signal. This raises the overall noise level, masking subtle detail present at the original recording.

2 ACCURACY If a D.A.C. (Digital to Analogue Converter) chip regulator is only rated to + or - 1% the voltage can drift with time. The device will rarely see the correct voltage it was designed to work with, therefore errors may occur in its operation, causing a loss of information.

3 SPEED Transient response and recovery time - critical in creating the correct timing for the starting and stopping of sound from notes within the music. Recovering speed of attack, space, harmonics, decay and low level resolution. The performance of all commercially available regulators is far too slow, masking and modifying most of these essential parameters.

The development of the Lithos series of regulator circuits and their application to existing hi-fi, marks a fundamental step forward in our ability to move much closer to experiencing what was heard on the day of the recording from our vinyl and CD collections.

If we use motoring analogy, this is achieved by delivering for the first time, precisely what the engine requires. In a sense we are replacing a carburettor with an electronic engine management system with fuel injection, with parallel improvements in performance as would be seen in a car engine.

Lithos will unleash the resolving capability 'weight' and speed of your existing hifi by ~

A providing a voltage stability accurate to greater than one part per million, providing a more accurate digital to analogue conversion, recovering more detail and information from your CD collection.

A noise figure 1000 times quieter than the best voltage regulators on the market, letting through a dramatic increase in the resolution of fine detail critical in the suspension of disbelief.

A much more open and deeper sound stage is created, giving insight into the performance, more accurately re-creating the emotion felt at the original recording.

A transient response time greater than 10 times faster than the best regulators available, coupled with a near instantaneous recovery time. The amplification is able to keep up with the signal. This provides the essential life like representation of the speed, weight, dynamics and expression of the original recording.

"It is subtlety and the resolution of fine detail that makes the difference between a good and a great hi fi system"

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HiFi Western Ltd. 52 Cambrian Road. Newport. S.Wales. U.K. Tel 01633 262790