Whats best type of web server for downloadable mp3 files

Just wondering since I know a shared host just wont cut it, what would be the best type of web server for a website giving away free music files. Would like to give away .wav, .mp3 as well as zipped packs that might exceed 1gb in size. Looking for the best cost efficient/cheapest way.
I have several shared host but I do expect a lot of traffic since people do like my instrumentals.
I have xfinity comcast service and it does come with a web server just not sure if it's shared or what not. Also…
Whats best type of web server for downloadable mp3 files

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