Be sure to ate to version v52, since the firmware is on the official website along with detailed instructions. For me, the sound is perfect, like the equalizer settings in the screenshot + bass on the soundbar itself on high.
EXuby Digital Converter Box For TV With RF/Coaxial And RCA Cable For Recording And Viewing Full HD Digital Channels Free (Instant Or Scheduled Recording, 1080P HDTV, HDMI Output, 7 Day Program Guide)
12 Review
Kohree 36V To 12V DC/DC Converter Regulator - 10A 120W Golf Cart Voltage Reducer
17 Review
DC/DC 12V To 24V Boost Converter 40A 960W - Waterproof Voltage Regulator Module For Car Power Supply (10V-16V Input)
15 Review
HOMELYLIFE 600W High Power Voltage Reducer DC 48V 60V 72V Step Down To DC 12V 50A Buck Converter Waterproof Module Car Truck Power Regulator Transformer
12 Review