Please help me translate this to Spanish so I don't bug my neighbors

Hi everyone. I'm trying to avoid disturbing my neighbors and would like to post the below notice on my front door in English as well as in Spanish because I know some of my neighbors don't speak English. Please translate it for me so I don't sound like Google Translate:

"I just installed a home theater system and don't yet know how loud is too loud…

If it's disturbing you then more than anything, I apologize.

But also, please let me know so I can turn it down and learn how loud is too loud!"

Thanks for your help.