A USB-C Headset Powered by an ESS Quad-DAC

The ROG Delta is a gaming headset from the Republic of Gamers division of ASUS that offers a Hi-Res audio certification thanks to its ASUS Essence 50 mm drivers with a 20-40,000 Hz frequency response and implementation of a high-end ESS Quad-DAC, and offers custom lighting effects via the circular RGB lighting on each ear cup. A wired headset exclusively, it connects via USB-C or standard USB 2.0 for use with PCs as well as compatible consoles and smartphones.

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“ROG Delta is the world's first gaming headset with the industry-leading, hi-fi-grade ESS 9218 quad DAC, which delivers impeccably clear and detailed sound to give serious gamers the edge they need to win. ROG Delta features a USB-C connector and comes with a USB-C to USB 2.0 adapter to let you game on your PC, console and mobile device without changing headsets. A one-of-a-kind, circular rainbow RGB lighting effect provides a stylish look to set you apart on the battlefield.”

Features from ASUS ROG:

  • Industry-leading hi-res ESS quad-DAC for impeccably detailed and true-to-life audio
  • USB-C connector for true multiplatform support, including PCs, Mac, mobile phones and PS4
  • Customizable, multi-color circular RGB lighting lets you shine in style
  • Exclusive ASUS Essence drivers, airtight chamber and audio signal diversion technology for immersive audio experiences
  • Upgraded comfort with ergonomic D-shape and ROG Hybrid ear cushions

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Why a quad-DAC design? When ESS released the ES9218 they pointed to these “internally connected parallel quad DACs” as the key to delivering its rated 124dB DNR and -112dB THD+N, in addition to signal-to-noise of up to 130 dB, with ASUS stating that their implementation with the ROG Delta makes the headset “capable of achieving an unprecedented signal-to-noise ratio of 127 dB, a level untouchable by single-DAC gaming headsets.”

Another aspect of the ultra-low noise of the ROG Delta is a design feature that ASUS calls “Hyper-Grounding”, which is an ROG-exclusive technology with an intelligent multi-layer PCB design that prevents interference and shields the audio signals from any RGB lighting-related PWM switching noise.

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So how does this very impressively-specified hi-fi gaming headset sound? I’ll offer my impressions after we check out the design and talk about fit and comfort.

Continue reading our review of the ASUS ROG Delta gaming headset