Iphone 8 plus bottom speaker not working. Sound comes from ear speaker but distorted.

Hello and welcome to Apple Support Communities dwight151,

I see that you're having an issue with the speaker on your iPhone. I understand wanting to get this issue resolved, and I'd be happy to help.

Let's have you take a look at the article below with some troubleshooting steps that can help.

If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker

If you go through this article and the issue remains, respond back with the answers to the following questions.

1. Is this happening when you use any app?
2. If you connect headphones, are you able to hear sound from your iPhone?
3. Do you have protective case on your iPhone? If so, does the issue remain if you remove it?

Thank you for using Apple Support Communities.