The Amazon Fire TV and new Fire TV 2 offers HDMI and optical audio, with support for Dolby Digital Plus and 7.1 surround sound pass-through, generally speaking, Amazon Fire TV can not play 7.1 audio, you will need a receiver in your surround system to decode the 7.1 audio in 8 channels and distribute them to 8 speakers. As a matter of fact, the Amzon Fire TV/Fire TV 2 doesn't need to decode 7.1 audio, it only needs to hand the surround audio stream to a receiver that can decode those formats.
There are many latest films that has been remixed to 7.1 audio tracks on Blu-ray disc for home cinema, Disney also announced that they will use 7.1 surround for their future 3D releases. Is is possible to stream Blu-ray movies to Amazon Fire TV/Fire TV 2 while preserving the 7.1 surround sound? The solution is output Blu-ray with Multi-track formats, so that all your audio codecs in the original Blu-ray disc well be well reserved.
Since most Blu-ray are commercial ones with copy protection, you will need a Blu-ray ripper application to get unprotected HD content, then you can perform the further conversion process. Pavtube ByteCopy can be your first choice since it not only assist you to legally strip of copy protection from Blu-ray disc, but also empowers with the bonus and beneficial functions to encode Blu-ray to Amazon Fire TV compatible Multi-track MP4 or MOV format with all the audio tracks in original Blu-ray disc well keeped, so that you can experience a rich cinematic surround sound with a receiver in your surround system with Fire TV/Fire TV 2.
For Apple TV users, you will be capable of playing Blu-ray movies on Apple TV with Dobly 5.1 surround audio on Mac by downloading Pavtube ByteCopy for Mac.
How to rip and stream Blu-ray to Amazon Fire TV/Fire TV 2 with 7.1 surround sound?
Step 1: Load Blu-ray disc with the program.
Insert the Blu-ray disc into an external BD drive that has been hook up to the computer, run the program, load your Blu-ray disc to the program by clicking "File" > "Load from disc".
Step 2. Choose to output Multi-track MP4 format.
To output 7.1 surround audio from Blu-ray disc, click the format bar to follow "Multi-track Video" ＞ "Multi-track MP4(*.mp4)".
Step 3: Check desired audio tracks in output file.
Click "Settings" on the main interface to open "Multi-task Settings" window, click "Audio" tab, check the audio tracks that you wish to keep in output file, subtitle streams here are banned to choose from.
Step 4: Convert Blu-ray to Amazon Fire TV/Fire TV 2 with 7.1 surround sound.
Hit right-bottom conversion button to carry out the conversion.
When the conversion is completed, transfer converted files to Amazon Fire TV/Fire TV 2 for smooth streaming with cinematic 7.1 surround sound.
