The Lost Art of AV: 70v Distributed Sound

70v system is a constant voltage distributed sound system, often used in commercial settings due to the ease of installation and design. Here is some basic design considerations and "how to" setup a 70 volt speaker system for commercial or residential use.
For more information or products to build a 70v system please visit: www.starin.biz or emails at [e-mail].

[@andrewh1306]

When I was younger I worked a lot of on 70V systems in stadium and auditorium settings (1980s) and it was a challenge to get any audio quality that didn't sound like a clock radio speaker. We also had major problems when one speaker was ripped off by a drunk guest or when cable runs came close to any other A/C wiring. Any tips on sound quality with these systems?