Revox Digital LS manual Master-Slave Concept

3.0Technical details

3.1Digital-Active Loudspeakersystem - whats' that?

The Revox digital-active loudspeakersystems consist of three parts:

1.A loudspeaker box housing with specially built, high-quality loudspeaker drive units.

2.A digital signal processor (DSP) by Motorola, embedded in an electronic unit, for all digital signal processing. This DSP is responsible for filtering the signals, distributing them to the individual frequency ranges, and thus to the individual power amplifiers. The input of the electronic unit accepts digital output signals of various sources, such as a CD-Player, a DAT-Recorder or a MD-Recorder. The unit automatically recognizes the sampling frequencies (32 kHz, 44.1 kHz, 48 kHz) of the different systems and adapts accordingly.

3.Three 130 watts power amplifiers in each box for driving the loudspeaker drive units. As the speakers come with built-in power amplifiers, there is no need for additional amplifiers for operation nor for an annoying search for the right loudspeaker cables.

Future trends will probably be characterized by an increasing importance of digital signal sources, e.g. DAB, DVB. So, buying a digital-active loudspeakersystem means getting ready for the digital age.

3.2Master-Slave Concept

In order to protect the system from external interference, the digital electronic unit has been designed as tight as possible. Additionally, this unit is extensively shielded and mounted in only one loudspeaker. For this purpose, a highly complex 4-layer board, which normally is exclusively found in high-performance computers, is used.

While one loudspeaker houses the digital electronic unit for both channels left and right as well as the power amplifiers for one side (master), the other speaker comes equipped with only the necessary power amplifiers for its side (slave). Such a concept guarantees a high degree of operational safety and excellent results.

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