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<blockquote data-quote="John Roberts" data-source="post: 49076" data-attributes="member: 126">Re: Multi building 70volt system - is this normal?Sending the signal back and forth at 70V is helpful at managing ground and noise issues. The physical send receive switch seems like a practical solution.&nbsp;&nbsp; edit/ it would be better if it was wired like those home light fixtures with two switches, so if both are set to send, they don&#039;t drive into each other. This would take 2x the wire between buildings, and more poles on switches, so probably not done.../editIf the amps are making sound, and not inherently broken causing distortion themselves, it probably only needs a major wiring clean up.&nbsp; Partial shorts on speaker lines or broken speakers can cause symptoms like you describe. Unless they need significantly more SPL you probably can make them whole by cleaning up the wiring. An impedance meter might be helpful for troubleshooting load balance and wiring integrity. Sounds like big fun... JR</blockquote>

[QUOTE="John Roberts, post: 49076, member: 126"] Re: Multi building 70volt system - is this normal? Sending the signal back and forth at 70V is helpful at managing ground and noise issues. The physical send receive switch seems like a practical solution. edit/ it would be better if it was wired like those home light fixtures with two switches, so if both are set to send, they don't drive into each other. This would take 2x the wire between buildings, and more poles on switches, so probably not done.../edit If the amps are making sound, and not inherently broken causing distortion themselves, it probably only needs a major wiring clean up. Partial shorts on speaker lines or broken speakers can cause symptoms like you describe. Unless they need significantly more SPL you probably can make them whole by cleaning up the wiring. An impedance meter might be helpful for troubleshooting load balance and wiring integrity. Sounds like big fun... JR [/QUOTE]

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