The BDM9 would appear to unravel the flashing light concern. I see it's a Stereo/Mono line output for the separate amp/subwoofer. I will seem much more closely at it and will probably place a single on purchase. I have now constructed a TPS3255 using the 3E board/electricity offer, so might https://www.qavendors.com/qa-testing-services/displays-holders