eARC vs. ARC: Do You Need a New Cable?
🛠️ Technical Reference
Built by a solo dev + AI assistance
Visualizing: eARC vs. ARC: Do You Need a New Cable?
ARC allowed your TV to send audio back to your soundbar. eARC (Enhanced ARC) takes it further.
The Bandwidth Jump
- ARC: Capped at ~1Mbps. Supports compressed 5.1.
- eARC: Up to 37Mbps. Supports uncompressed Dolby Atmos and DTS:X.
Cable Requirements
You need an Ultra High Speed (HDMI 2.1) cable to ensure enough bandwidth for the data-heavy audio streams of eARC.
Technical References
- HDMI Forum: HDMI 2.1 Specification.
Share this analysis:
Confused by the specs?
I built a tool to find the exact cable for you.
Continue Reading
Optical (TOSLINK) vs. Digital Coaxial Audio
Comparing the two kings of digital audio. Why fiber optics prevents ground loops but copper has more bandwidth.
Read More →HDMI 2.1 vs 2.0: Do You Really Need 48Gbps?
A technical breakdown of HDMI 2.1 vs 2.0. Learn about FRL, 48Gbps bandwidth, and whether your 4K setup actually requires an Ultra High Speed cable.
Read More →HDCP 2.2: The Secret Cause of Black Screens
Understanding digital copy protection. Why your expensive 4K cable won't play Netflix on your TV.
Read More →