A multi channel power amplifier could be just the place to start with your audio setup. Among the supported audio formats, you'll find DTS 5.1 and DTS HD High Resolution Audio.
From Richer Sounds
Emotiva XPA-11 Gen 3 (Black)
Nintronics
Emotiva XPA-11 Gen3 11 Channel Power Amplifier - Black
Hi-Fi Corner
Emotiva XPA-11 Gen 3 Power Amplifier