Got a LG OLED TV and I want to use the HDMI eARC sound capability so I need an updated receiver that can do that. Can anyone tell me which current receivers are compatible with my acoustimass 6 series 2 speakers? I know I need something that can handle 4-8 ohms with 10-100w of power. Have heard tales of supposedly compatible AVRs limiting out. One tech was telling me I need an AVR with pre amp outputs which are a bit more costly. Hopefully somebody can guide me here, I still like the speakers and would rather not replace them.