Hi Willie! The SWA-8500S Rear Speaker Kit is compatible with our HW-T550 Soundbar. If you continue to have issues pairing your speakers, please reach out to Samsung TV Support at:
― Phone: 1-800-SAMSUNG / Available 8 AM - 9 PM EST, Mon - Fri
― LiveChat or Email: https://www.samsung.com/us/support/#contact_us_for_support
We look forward to hearing from you. ^Gina