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Constant-voltage speaker system - Wikipedia
https://en.wikipedia.org/wiki/Constant-voltage_speaker_system#:~:text=Constant-voltage%20speaker%20systems%20refer%20to%20networks%20of%20loudspeakers,speakers%20driven.%20Constant-voltage%20speaker%20systems%20are%20also%20commonl
Understanding Constant-Voltage Audio Distribution …
https://www.prosoundweb.com/understanding-constant-voltage-audio-distribution-systems/
Constant-voltage is the common name given to a general practice begun in the late 1920s and early 1930s (becoming a U.S. standard in 1949) governing the interface between power amplifiers and loudspeakers used in distributed sound systems. Installations employing ceiling-mounted loudspeakers, such as offices, restaurants and schools are examples of …
A Detailed Guide To Constant-Voltage Audio Systems ...
https://www.prosoundweb.com/a-detailed-guide-to-constant-voltage-audio-systems/
This reduces power loss due to the I2R heating of the power cables. The same solution can be applied to audio communications in the form of a constant-voltage system (typically 70 volts in the U.S. and 100V overseas). Such a system is often used when a single power amplifier drives many loudspeakers through long cable runs (over 50 feet).
Constant-voltage speaker systems - Biamp Cornerstone
https://support.biamp.com/Vocia/Miscellaneous/Constant-voltage_speaker_systems
The most important aspect of a constant-voltage system is that all connected amplifiers and speakers are referenced to a constant-voltage value (70.7V or 100V) at full output level (0dB). In comparison to low impedance (LoZ, 4 – 16Ω) systems, a constant-voltage system brings a lot of advantages in designing and installing distributed speakers.
GUIDE TO CONSTANT-VOLTAGE SYSTEMS - Pro …
https://www.proacousticsusa.com/media/wysiwyg/installation_help_page/helful_documents/Guide_to_constant_Voltage_systems_original.pdf
The same solution can be applied to audio communications in the form of a constant-voltage system (typically 70 volts in the U.S. and 100V overseas). Such a system is often used when a single power amplifier drives many loudspeakers through long cable runs (over 50 feet). Some examples of this condition
Constant Voltage (70-Volt) Audio Systems
https://www.parts-express.com/70-volt-systems
Constant Voltage (70-Volt) Audio Systems The following exerpt from Audio System Design And Installation, by G. H. Philip Giddings is an explanation of these systems that is a more in depth and for more for those with intermediate experience. Javascript is disabled on your browser.
Constant Voltage (70-Volt) Audio Systems For Beginners
https://www.parts-express.com/70-volt-systems-beginners
A "constant-voltage" or "high-impedance" audio distribution system is commonly used to overcome these and a number of other possible problems. These systems are also referred to by their nominal voltage, with "70-Volt" and "25-Volt" systems being the most common references.
25V, 70V, & 100V Constant Voltage Speaker Systems
https://www.lowellmfg.com/wp-content/uploads/What-is-a-25V-70V-or-100V-Speaker-System.pdf
constant voltage term comes from. That is a handy part of the constant voltage system design. If a system has a 100 watt 70V amplifier and more speakers are added so the load is greater than 100 watts, the next larger amplifier (maybe a 70V 150W amplifier) can be used to replace the 100W amplifier.
Common misconceptions about constant voltage …
https://www.atlasied.com/blog-constant-voltage-speaker-systems
Constant-voltage speaker systems refer to networks of loudspeakers that are connected to an audio amplifier using step-up and step-down transformers to simplify impedance calculations and to minimize power loss over the speaker cables.
Constant-Voltage Audio Distribution Systems: 25, 70.7 …
https://www.ranecommercial.com/legacy/note136.html
Constant-voltage is the common name given to a general practice begun in the late 1920s and early 1930s (becoming a U.S. standard in 1949) governing the interface between power amplifiers and loudspeakers used in distributed sound systems. Installations employing ceiling-mounted loudspeakers, such as offices, restaurants and schools are examples of distributed sound …
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