Advantages
The main advantages of using a constant voltage speaker system over a conventional low impedance speaker system are:
- Multiple loudspeakers: Many loudspeakers can be driven by a single amplifier without complex series/parallel connection schemes.
- Multiple power levels: Different sound pressure level targets can be achieved at different listening areas while still using a single amplifier.
- Less expensive: Since the voltage of the signal has been stepped up and the current is relatively low, lighter, less expensive cable can be used without incurring additional power loss. Where a typical 8-ohm speaker system might require 12 gauge cable, a 70-volt system could use 18 gauge or smaller cable.
- Monaural sound: A 70-volt loudspeaker can provide monaural sound in places where two separate stereo loudspeakers would not be practical, for example, in the restroom of a restaurant.
- System expansion: A 70-volt system can be expanded easily.
- Easy volume adjustment: A passive volume control may be installed to give the user easy level control over a single loudspeaker or a multiple-speaker zone.
Read more about this topic: Constant Voltage Speaker System
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