8K 48Gbps HDMI 2.1 Distribution Amplifiers
About 8K HDMI 2.1 Distribution Amplifiers
VigilLink's HDMI 2.1 distribution amplifier family delivers the full 48Gbps bandwidth required for 8K@60Hz, 4K@120Hz 4:4:4, VRR, ALLM, and Dolby Vision passthrough — capabilities that HDMI 2.0 amplifiers cannot support. Designed for professional AV installations where next-generation gaming consoles, 8K broadcast monitors, and high-frame-rate display systems demand uncompromised signal integrity at every output, the VLSP-series HDMI 2.1 range is available in 1x2, 1x4, and 1x8 output configurations, with SA variants adding simultaneous audio de-embedding, and the VLSP-22H21 offering a 2x2 dual-input configuration for A/B source switching. Every model ships with a 6-year VigilLink warranty.
Choosing the Right HDMI 2.1 Distribution Amplifier
Standard HDMI 2.1 — Video Only (VLSP-12H21S / VLSP-14H21S / VLSP-18H21S / VLSP-22H21): Full 48Gbps distribution with no audio extraction. The VLSP-12H21S (1x2) suits smaller dual-monitor setups; the VLSP-14H21S (1x4) covers four-display environments; the VLSP-18H21S (1x8) handles large-scale 8K or 4K@120Hz arrays. The VLSP-22H21 is a 2x2 model accepting two independent HDMI 2.1 sources and distributing each to two outputs — suited to A/B source switching in esports and broadcast monitor walls.
With Audio De-Embedding (VLSP-12H21SA / VLSP-14H21SA): Identical video distribution to the standard models, with the addition of simultaneous analog stereo, optical TOSLINK, and coaxial S/PDIF audio extraction from the HDMI signal. Choose an SA model when the source must simultaneously feed displays and a separate audio system — room amplifier, streaming audio mixer, or broadcast desk — that does not have an HDMI input.
Frequently Asked Questions
What bandwidth does HDMI 2.1 provide and why does it matter for distribution?
HDMI 2.1 supports up to 48Gbps FRL bandwidth, compared to 18Gbps on HDMI 2.0. This additional bandwidth is required to carry 8K@60Hz, 4K@120Hz 4:4:4, VRR, and ALLM signals intact. A distribution amplifier must match the source bandwidth — using an HDMI 2.0 amplifier with an HDMI 2.1 source caps all outputs at 4K@60Hz and disables high-frame-rate and VRR features.
Are VigilLink HDMI 2.1 distribution amplifiers backward compatible with HDMI 2.0 sources and displays?
Yes. All VLSP-series HDMI 2.1 models are fully backward compatible with HDMI 2.0, HDMI 1.4, and earlier sources and displays. The amplifier negotiates the highest common signal format between source and display at each output independently, so mixing HDMI 2.0 and HDMI 2.1 displays on the same unit is supported.
Do these amplifiers support VRR and ALLM for gaming?
Yes. All VigilLink HDMI 2.1 distribution amplifiers pass VRR and ALLM signals transparently to all outputs, preserving adaptive sync and low-latency game mode on compatible displays. Both features require a VRR/ALLM-compatible display at each output to take effect.
What is the difference between the VLSP-12H21SA and VLSP-12H21S?
Both are 1x2 HDMI 2.1 distribution amplifiers with identical 48Gbps video distribution. The VLSP-12H21SA adds integrated audio de-embedding, extracting the HDMI audio stream as simultaneous analog stereo (L/R), optical TOSLINK, and coaxial S/PDIF outputs. Choose the VLSP-12H21SA when the source must also feed a room audio system or amplifier without an HDMI input.
What is the VLSP-22H21 and how does it differ from the 1x2 models?
The VLSP-22H21 is a 2x2 HDMI 2.1 distribution amplifier with two independent HDMI 2.1 inputs and two HDMI 2.1 outputs. Each input drives one output, unlike the 1x2 models where one input drives two outputs. The VLSP-22H21 is designed for A/B source switching or dual-source monitor wall applications where two independent 8K or 4K@120Hz feeds must be displayed simultaneously on separate screens.