My client has an existing Bogen amp and speakers that need to be replaced. This will be easy. However, they recently remodeled and would like to have paging speakers in areas where we can't run cable. They can find power for the speakers but the signal needs to come in wirelessly for those speakers. I need some advice.
"...the signal needs to come in wirelessly for those speakers..."
They're called "wireless speakers."
If you were to Google that phrase, you would receive 156,000,000 hits.
You also need to recommend to your customer that they Google "time machines."
Whenever one of my customers (soon to be ex-customer) tries that crap with me ("I just remodeled, and now I need you to come over and run wires in places that you can't get to.") I suggest that get their time machine out of the garage, go back a few months, and give me a call. The conversation generally does not end well, but I get great satisfaction making stupid people realize that they're stupid.
What Arthur said. In addition I would make them know that even if it could be done they wouldn't want to pay for it.
-Hal
Ditto on what they said but I have seen audio repeaters that use AC outlets for remote locations.
Carrier current. But I haven't seen that for years. Likely you might find WiFi enabled speakers. I know they have portable consumer type speakers like for a patio that are RF.
-Hal
"...even if it could be done they wouldn't want to pay for it."
Oh, it can ALWAYS be done, as I'm sure you know, Hal. There isn't a wiring situation obstacle yet that I haven't been able to overcome. Just takes a long drill bit and prayer. Or Wiremold®.
Nahh conduit. For people like that I like I tell em I'll have to run EMT all over their finished ceilings. Heh heh.
Don't worry, once you paint it you won't even know it there...
-Hal
You'd have better luck with a wireless extension cord.
A guy I knew who didn't want to run a single-line extension in a huge apartment (it would have been a colossal PITA) showed up with a 200' coil of 25 pair. Madame asked WTF? He said, "This is the new type of wire we are obligated to use due to anti-terrorism concerns. It rejects attempts at wire-tapping from satellites." She decided to continue to use the cordless.
"showed up with a 200' coil of 25 pair
That would scare the crap out of anyone....
Sam