Don’t think it would be worth to get it fixed.
Assuming that it’s past it’s warranty period, doing it at Acer will incur a parts plus service / repair cost.
Shops at SLS should not have parts on hand - will probably have to order. You will then incur a mark up on parts plus repair.
Your best bet would to be to fix it yourself, if you are handy and willing to try. Get parts from Aliexpress or EBay and breath new life in your PC
tbh it’s pretty fun.
Else, getting a Bluetooth speaker / external speaker would be another alternative