LG Electronics officially kicked off the launch of its six-model 2019 sound bar lineup, highlighted by the SL9YG and SL10YG models with Dolby Atmos and DTS:X decoding. The new 2019 models include: the SL5Y ($279), SL6Y ($399), SL7Y ($499), SL8YG ($799), SL9YG ($999) and SL10YG…