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Wire gauge for 70V speaker system | AVS Forum
https://www.avsforum.com/threads/wire-gauge-for-70v-speaker-system.1512130/
You'll need to go to a site that has information specific for 70v systems. I don't work with them myself, but logic dictates that being high voltage/low current systems they probably can get away with a lot less gauge than standard systems. 109w at 70v is only 1.6 amperes, which doesn't need more than 18ga. 1 - 2 of 2 Posts
All About 70-volt Speaker Systems - Belden
https://www.belden.com/blogs/broadcast/all-about-70-volt-speaker-systems/
No problem! In fact, within a building, the gauge of the wire almost doesn't matter at all. Note that 24 AWG wire, like some bell wire or spare Category 5, is only 1 dB down at 900 feet!! The cost of the wire in such an installation becomes incidental. Another unique feature is that the transformer on each speaker has a number of taps on the ...
TOA Canada - What is the maximum length of speaker wire ...
https://www.toacanada.com/what-is-the-maximum-length-of-speaker-wire-for-a-70-volt-line.html
The maximum length of speaker wire for a 70V line depends on the gauge of wire being used. Below you will find a chart with different gauges and their maximum length for use in a 70V system. (Chart created by Belden) *The maximum length of speaker wire for a 70V line depends on the gauge of wire u0003being used.
70V line Cable Selection – Vellone Communication
https://vellone.com/wiki/70v-line-cable-selection/
Your 70V Speaker System Wiring Diagram and Installation Guide
https://www.proacousticsusa.com/blog/post/your-70v-speaker-system-wiring-diagram-and-installation-guide/
This 70v speaker wiring diagram shows you how to wire a 70v speaker system as well as speaker volume control wiring for your commercial ceiling speaker system installation. Wiring a 70v speaker system, especially ceiling speaker and volume control wiring, can be complicated if you’re not exactly sure what you’re doing. This speaker system wiring diagram …
RC: 70V system minimum wire size - Remote Central
http://www.remotecentral.com/cgi-bin/mboard/rc-custom/thread.cgi?32517
A 100 watt load at 70 volts looks like 49 ohms. 18 gauge wire has a resistance of 6.385 ohms per thousand feet; we have two conductors so that would be 12.77 ohms. Atlas suggests you can go up to 700 feet with 18 gauge, meaning …
70V audio wiring size | Mike Holt's Forum
https://forums.mikeholt.com/threads/70v-audio-wiring-size.2556593/
Most will say CL2 wiring permitted. 8762 is listed as CM so it can be used in CL2 applications. But if the amp label does not indicate CL2 then you can't use it. Second, a 70.7 volt system will rarely get to 70 volts. The voltage will depend on the audio content which varies constantly as will the current.
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