Fortunately, SOSO has a background in algorithms itself and is very familiar with SRC algorithms.Īnd with this design, low-pass filters are needed. R2R has very high requirements for algorithms. First, start with R2R with low algorithm requirements but high hardware requirements, and then develop string DAC with high algorithm requirements but low hardware requirements. In 2015, SOSO set the technology roadmap. SOSO examined the major architectures on the market, such as the hardware architectures of String-Dac and R2R, and the algorithm architectures of PCM and SDM. Once the general direction was established, the next challenge was to select a specific decoding architecture. This proprietary design also bypasses the bottleneck problems of acquiring the needed part that most manufacturers have faced in recent years. Once the decoding architecture is fixed, only the algorithm and the tuning layer need to be adjusted in the future. While integrated chips evolve and implement innovative approaches, SOSO, preferred to not follow the trend of constant changes, and do rather something meaningful at the base level and then use that architecture for a long time.įor this reason, HIBIKI SDS DAC adopts a discrete design. Not always is known what is done inside, such as the algorithm used, operating frequency, efficiency, configurable degree, etc., and SOSO tends not to trust such devices without transparent information. In addition, SOSO is also not favoring integrated chips in the operation mode of the opaque part, as some chips before modulation, often do SRC operation. SOSO himself is a very cautious person and didn't want to pick up the integrated chip that comes with any kind of bugs, let alone the so-called hidden menu of the integrated chip, such as the configuration of additional registers, causing a mode of operation that is not in the specification. There is already a wide range of DACs available, using either discrete technology or integrated chip. SOSOLAR (SOSO), who used to work at ARM, had difficulty finding a DAC with suitable sound and satisfactory price while studying in the UK, so he came up with the idea of building one himself. While many upscale high-end audio manufacturers stagnate and rest on their laurels, a lot of smaller, new brands are trying to push the boundaries of digital by other means.Īs you'll read in the following chapter, HIBIKI SD DAC is one of such and comes with a far more intriguing and complex story as well as sonic liquidity than is usually the case. Long-time M & S readers have figured this out already, but perhaps for the new readers and followers, it is worth putting it out there. If a product doesn't work as advertised or doesn't perform at the level needed, we simply don't review it. What you won't see at M & S are negativity and bad reviews. Mono and Stereo operate almost around the clock, and I can only write a certain number of reviews per year, as there is a lot of work behind the full operation. Mono and Stereo now have over 800,000 readers from all over the world, including many readers who keep asking me to discover more products with down-to-earth pricing.
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