Tariffs are organized with international codes, the HTS, for each export and import. I looked into it a few years ago to understand import tariffs on building materials.
To impose tariffs, the US government, or any government, would set a percentage on specific HTS codes, or all the codes from a specific country.
The imported price is also dependent on fluctuating exchange rates which countries control, usually to advantage their exports.
The exporting country, seeing their exports reduced by rising end customer prices in the importing country, imposes retaliatory tariffs. Then maybe negotiations proceed. The supply chain digests the price inflation.
So in the big picture, you can look at any country's trading partners, imports and exports, by large segment goods classification to forecast the impact on an individual.
I have looked at microphones from Thomann, and I think the tariff on that HTS kicks in above $800 today.
One area the US subsidizes imports is low rates for last mile deliveries by the US Postal Service. That makes possible companies like Temu, all the AliExpress, and so forth. So all of my Chinese DACS, amplifiers, and test equipment is delivered without tariff, as far as I can tell, for a very small price. Amazon uses the US Postal Service for rural areas where they are too cheap to send Amazon vans and freelancers. Shippers can find alternatives tp the US Postal Service if the price is too high.
In my view, our individual expenditures on Chi-audio is tiny in comparison to our individual consumption of the spectrum of Chinese imports -
https://www.bis.doc.gov/index.php/c...istical-analysis-of-u-s-trade-with-china/file.
I'll tell an interesting story. A friend of mine was a product manager for HP printers. To make printers, you need screws, imported from China. To make screws yourself, you need screw-making machines. They are not made in the US, they are made in China. I was talking to a company that makes bicycle parts. Bearings supply is dominated by China. A friend of mine did a startup with a predecessor to the iPod, the microcontroller consumer product design knowledge is in China, not here.
Right now, I'm looking at solar panels and home batteries, pre-tariff.