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

Subject: General Tech
Manufacturer: EVGA

Dedicated 2-Channel Sound

In the audio realm something pretty special happens when you have the right mix of source material, digital-to-analog conversion, amplification, and transducers (headphones or loudspeakers). And I am just talking about stereo, as 2-channel audio has the potential to immerse as deeply, and even more so, than 3D positional audio can; but it does take more care in overall setup. Enter EVGA, a company famous for its video cards, power supplies, motherboards, etc., and no stranger to diversification in the enthusiast PC community. And while EVGA in recent years has expanded their offering to include cases, coolers, and even laptops, they have never attempted a dedicated sound solution - until now.

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Coming as a surprise as the featured product in their suite at CES 2019, EVGA’s introduction of the Nu Audio card was exciting for me as an audio enthusiast, and this is really an enthusiast-level card based on the pricing of $249 ($199 for EVGA ELITE members). The Nu Audio is an all-new, designed from the ground up sound card with a true hi-fi pedigree and a stated goal of high-quality stereo sound reproduction. Just hearing the words “two channel” in relation to the computer audio was music to my ears (literally), and to say I was intrigued would be an understatement. I will try to temper my enthusiasm and just report the facts here; and yes, I understand that this is expensive for this market and a product like this is not for everyone.

The Nu Audio was created in partnership with Audio Note, a UK-based hi-fi component maker with a solid reputation and a philosophy that emphasizes component selection and material quality. In breaking down the components selected for the Nu Audio card it is evident that a high level of care went into the product, and it is the first time that I am aware of a computer sound card having this much in common with dedicated audiophile components.

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Of course component choices are irrelevant if the Nu Audio doesn’t sound any better than what users already have, and proving the value of a quality 2-channel experience can be tricky as it generally requires the user to provide both source material and headphones (or amplifier/speakers) of sufficient quality to hear a difference.

Continue reading our review of the EVGA Nu Audio PCIe sound card!