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Sonnet Digital Audio

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Sonnet Digital Audio is a Dutch high-end audio brand founded by Cees Ruijtenberg, who came to the company after a long background in digital audio engineering and also had ties to Metrum Acoustics. Its present-day identity appears to have emerged around 2019, when Ruijtenberg launched Sonnet Digital Audio after the buy-out of Metrum’s DAC business.

The brand is best known for digital-to-analog converters and related digital hardware, especially its R2R and non-oversampling DAC designs such as the Morpheus and Pasithea. It also offers matching digital components and modules, but it is not known as a maker of speakers, turntables, headphones, or cables in the way broader hi-fi brands are.

In the market, Sonnet Digital Audio sits firmly in the boutique high-end segment. Its products are positioned as specialist, audiophile-focused converters built in the Netherlands, with pricing and distribution that place them above mass-market gear and aimed at buyers who prioritize technical refinement, low-volume craftsmanship, and a distinctive house sound.

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