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Commercial Audio Guide - TeleDynamics
https://www.teledynamics.com/tdresources/e8de85ae-8b1c-4a80-aff3-d4bec3827e88.pdf#:~:text=70%20Volt%20Sound%20System%20is%20comprised%20of%20amplifiers%2C,music%20and%2For%20pre-recorded%20messages%20to%20a%20commercial%20environment.
All About 70-volt Speaker Systems - Belden
https://www.belden.com/blogs/broadcast/all-about-70-volt-speaker-systems/
So the 70-volt distributed speaker systems are mostly confined to low audio-quality applications such as background music or paging. Supermarkets, hotels, hospitals, airports are where you will find 70-volt distributed loudspeaker systems; anywhere you have more than a dozen speakers.
WHAT IS 70-Volt? Everything you need to ... - Rockville Audio
https://www.rockvilleaudio.com/blog/what-is-70volt-everything-you-need-to-know-wiring-advantages-and-more/
70 volt systems allow you to run very long lines of speaker wire without signal loss. This makes it ideal when running long speaker leads. The wiring is simple. You just wire all the positive terminals of the speakers to the positive 70 volt terminals of the amplifier.
70 Volt Audio: Introduction to the Products and Principles ...
https://www.cepro.com/news/70_volt_audio_introduction_products/
Loudspeakers in 70-volt systems can be dreadful, brilliant, or lots of places in between. Every 70-volt loudspeaker essentially is a low-impedance …
The Why and How of 70 Volt Audio Systems
http://erictraining.com/articles/AV/70-volt_cheat_sheet.pdf
2) A 70-volt system allows you to run more speakers off a single amplifier. 3) A 70-volt system plays in mono, not stereo, so speaker placement is not as critical. 4) A 70-volt system allows you to daisy chain speakers together, running the wire from one speaker to the next as opposed to home runs back to the amplifier for each 8-ohm speaker.
What is a 70v sound system? – TIC
https://ticcorp.com/blogs/default-blog/what-is-a-70v-sound-system-preview-5c104335c7ee3
70v system is a constant voltage distributed sound system, often used in commercial settings due to the ease of installation and design. Under the traditional loudspeaker system design, impedance load has to match the operable range of the amplifier. Since most loudspeakers are 8Ω and amplifiers can handle 4-16Ω, match
70 V Sound System Myths - Prosoundtraining
https://www.prosoundtraining.com/2016/06/23/ten-70-v-system-myths/
The 70 V system is just a means of signal distribution. It has nothing to do with the type of loudspeaker used. While 70 V distribution works …
Common Questions Regarding 70-Volt Audio - AtlasIED
https://www.atlasied.com/blog-constant-voltage-speaker-systems
Using Ohm's law, we can take the voltage squared (70 x 70) divided by the wattage (150) and get a resistance rating of 33.66-ohms. An impedance meter can be connected to the loudspeaker wiring at the amplifier …
Demystifying 70 V “Constant Voltage” Systems - …
https://www.churchproduction.com/education/demystifying-70-v-constant-voltage-systems/
The so-called 70-volt system is mis-named; it is more correctly called a constant impedance system and like Paul Johnson says, is sort of an …
25V, 70V, & 100V Constant Voltage Speaker Systems
https://www.lowellmfg.com/wp-content/uploads/What-is-a-25V-70V-or-100V-Speaker-System.pdf
The correct voltage level is 70.7V, so for all calculations, 70.7V will be used. 70.7V was chosen by the system designers simply to make the calculations easier. Typing 70.7 is cumbersome, so very often 70V is used as an abreviation. Keep in mind though, that 70.7V is the actual voltage value used. 25V, 70V, & 100V Systems:
70v PA system | Electrician Talk
https://www.electriciantalk.com/threads/70v-pa-system.73486/
70 volt system, 60 watt amp: the 25W goes away, just toss it. Add the total wattage of the taps and it must be less than 60 w. Volume is set by the taps ie. you could have 120 very quiet 1/2 watt speakers or 1 loud 30 watt speakers and 30 quiet 1 watt speakers.
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