“Can you connect this to a bluetooth amp, and/or will there be a sync issue with the audio and video if used that way?”
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The LG 50” Class UA77 Series LED AI 4K UHD Smart webOS TV (2025), Model # 50UA7700PUB, is a Bluetooth-enabled TV (Bluetooth® ver. 5.1) so it can be paired with an external Bluetooth-enabled receiver. Bluetooth 5.1 still has audio latency, as all wireless Bluetooth connections introduce some delay (typically 34–200+ ms) due to encoding and transmission. While Bluetooth 5.1 provides better data transfer and stability than older versions, the perceived lag depends more on the specific audio codec (e.g., SBC, AAC, aptX) used rather than the 5.1 version itself. The supported Audio Codecs on this TV are AC4, AC3(Dolby Digital), EAC3, HE-AAC, AAC, MP2, MP3, PCM, and apt-X. Check to see which audio codec your receiver supports. Audio latency is often higher if a receiver (or headphones) and TV do not support the same, or the best available, audio codec. Mismatched codecs force devices to default to a slower, basic codec like SBC (typically ~200ms+ delay), whereas matched, low-latency codecs (like aptX Low Latency) minimize delay to under 40ms. Bluetooth does not directly degrade visual video quality (resolution or color), but it commonly causes audio-video desync (latency), where audio lags 150–300ms behind the video. It can also interfere with 2.4 GHz Wi-Fi, causing buffering or reduced quality during streaming...^Ivan.
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