Soundproof miner box build for two Antminers

This box is able to totally absorb the noise of two Antminer L3+ along with their two power supplies.
In the end, the noise level increases above an average room level by only 15db, which is just the inevitable noise of the air flows. It costs around US$ 630 and it took me roughly 50 hours, single-person, work.

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Видео Soundproof miner box build for two Antminers канала Mining Dreamer