First off, I apologize if this is the wrong forum. Please let me know if this is the case!
Secondly, here is the crude blueprint of her business:  http://i.imgur.com/EiSn1.png
My friend is starting a massage spa business and I volunteered to help her with her audio setup. Here are her requirements:
- [*] UPDATE1: She is okay with the music not playing at the same time in all 3 rooms.[*] Each room is approximately 10x10 feet[*] Music should only be for ambience [*] She does not plan on mounting the speakers to the ceiling because she wishes to conceal them with furniture/decoration to create a seamless experience for the customer.[*] She wants to limit the budget to $300.
Any feedback/recommendation is greatly appreciated!
She is okay with this
If the system HAS to play the same thing in every room, then you really are looking at a wired system across all three rooms. If you can relax the requirement that they all play the same thing at the same time, that opens up a lot more options, and will bring the cost down.
UPDATE2 - Music should only be for ambience as suggested by Jason Charlton
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