Amazon said the new product makes lossless audio more accessible to everyone, with Amazon Prime members costing only $12.99 a month. Those who do not have Prime membership can subscribe for $14.99 a month, while existing Amazon music subscribers pay an additional $5 a month to get the product.
What Amazon calls high-definition music is 16-bit audio with a sampling rate of 44.1 kHz. Ultra-high-definition music is 24-bit audio with a sampling rate of 192 kHz. The service will provide the best sound quality based on user network quality and support high-definition audio on multiple platforms, including desktop devices, Android devices, iOS devices and Amazon's own smart speakers, Fire TV devices and tablets.
Amazon will offer a 90-day free trial of Amazon's music HD service. Amazon music subscribers can also get 90 days of free upgrades to try higher quality music.