In the past two years, due to chip supply issues and technical bottlenecks, there have been very few choices for audio DACs. In this context, various brands have introduced their R2R products.
Adopting R2R technology allows us to break free from the restrictions of ESS, AKM, and other chip manufacturers. We can use general chips like FPGA. Additionally, the R2R D/A conversion mode, compared to the current commercial DAC's Δ - Σ conversion method, is considered to be closer to the sound of analog audio. Therefore, despite some key indicators such as signal-to-noise ratio, distortion, dynamics, and sampling rate support being somewhat inferior, and despite higher power consumption, larger size, and higher costs, many audiophiles would still choose products with R2R technology for their unique sound.
Simply put, R2R has good taste, while Δ - Σ has high quality. (Note: There are R2R with very high indicators, yet at an extremely high price and with large circuit size. We personally think that if R2R indicators are pronounced too high, its unique taste might not be so attractive.)
Therefore, the K11 R2R version will be FIIO's first product to use R2R technology. As the first product, there may be some aspects that are not so mature and complete. So, we are testing with the technology in the K11 first. We will gradually iterate and evolve based on feedback from users. Depending on feedback and demand from audiophiles, we will decide whether to develop it as a personalized product in small quantities or apply it as a core technology to more of our products in the future.
specs ici : https://hifigo.com/products/fiio-k11-r2r
