Audes ST-1500DC power conditioner

The Audes Power Conditioner ST-1500DC can be used with both sound and image equipment.
The quality, especially the sound, but also that of a beamer, for example, is greatly improved. The best result is achieved by connecting the entire installation to the Power Conditioner. The Power Conditioner is designed for use with both solid state and pipe equipment.
It doesn't matter how you plug the equipment into the sockets of the Power Conditioner! The so-called poles are therefore a thing of the past. The Power Conditioner also works without an earth connection available!
The transformer of the Audes ST-1500DC is designed in such a way that the number of primary turns is maximum; as a result, the power consumption of an unloaded Audes ST-1500DC is very low; in practice you always leave the Power Conditioner “on”.

During highly dynamic parts of an audio track (eg Tutti Fortissimo of a full symphony orchestra, sounds of large ethnic drums, bass parts of experimental electronic music and cinematic SFX = special effects) a (power) amplifier draws enormous current peaks from the mains. Values ​​from 50 to 100A are certainly no exception, the voltage level (230V) must remain constant under these severe conditions, so without "dips" and moreover (theoretically) an "infinite amount of current can be supplied".

An ordinary household socket, which is connected to a distribution board in the meter cupboard with long electrical cables, cannot supply such current levels, partly because of the relatively high output impedance. The Audes ST-1500DC has a very low DC output resistance and can therefore easily deliver high current peaks without the secondary voltage (230V) dropping. This is achieved because Audes has developed a transformer with a very large core and by making it work with a minimal inductance, the current peaks that the Audes ST-1500DC can deliver are many times higher than those of the mains.

Another problem with the power supply of high-end AV equipment is contamination of the mains. This is caused, among other things, by switches, controllers of electric motors, dimmers, switching power supplies and not to forget (nearby) solar panels!

Electrical disturbances are eliminated by the symmetrical construction of the primary and secondary winding of the Audes transformer. The secondary winding is divided into two halves and has a center tap, which is connected to the ground terminals of each CEE 7/3 socket.

The high-quality CEE 7/3 sockets are galvanically isolated from the mains. The Audes transformer is provided with proper shielding against electromagnetic disturbances from outside.

The Audes ST-1500DC's transformer is designed to act as a low-pass filter. Because almost all electrical network failures are high frequency, the cut-off frequency is 800 Hz. The foregoing technical aspects make it possible to remove almost all contamination that reaches the primary side of the transformer via the mains, so that a reliable stable voltage and very high-quality clean current is available for your equipment on the secondary side of the transformer.

The Audes ST-1500DC draws a peak current of approximately 20A when switched on. A special series resistor, which is short-circuited by a relay after the transformer has “filled up”, limits this peak current. As a result, the inrush current of the Power Conditioner is not too high for your 16A fused mains connection.

Audes Power Conditioners are equipped with overload protection and are thermally protected, which switches off the transformer as soon as the temperature of the transformer reaches 90 °C. When the temperature drops to 75 °C, the device automatically reconnects to the mains.

The response time of an amplifier to an audio signal is considerably shorter when using a Power Conditioner, especially at lower frequencies, this shorter response time also benefits the reproduction of transients. The dynamics are dramatically increased, resulting in more realistic-sounding musical instruments and cinematic SFX.
During the Power Conditioners demos, with the same volume control position, most listeners experience the increase in dynamics as if the volume was turned up slightly. The placement of instruments and the height, width and depth of the soundstage increase, there is clearly more “air around the instruments”, all in all a huge improvement. We dare to say that everyone is really enthusiastic after a demo. We often hear: ”I really did not expect this” and “What a huge improvement”.