I'm not sure about hooking up speakers or sound systems but people were playing stereos pretty loudly. I would try and keep the music to your area to respect neighboring parties. Anything that needs a sound system like a DJ situation, you should probably run it by park staff before going as there may be permits needed for that.
Yes agree with the last response
I'm not sure! Last time, I saw a woman who was listening music, but not that loud.
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