Immerse yourself in the fascinating world of audio enjoyment with the FiiO K11 R2R Desktop DAC and headphone amplifier. The 24 Bit R2R DAC, developed by FiiO, delivers a uniquely charming, melodic sound. Its fully differential architecture results in lower noise and a darker musical background compared to conventional devices. With support for PCM up to 384 kHz/24 Bit and DSD256, the K11 R2R can process audio signals with high precision, bringing out all musical details beautifully. The K11 R2R features two modes: the NOS (Non-Oversampling) mode retains the original sampling rate for decoding, preserving the authentic sound and allowing you to enjoy an organic and immersive musical experience. The OS (Oversampling) mode increases the overall sampling rate to 384 kHz for superior audio performance and a more finely resolved, purer sound. The K11 R2R is equipped with a variety of connections, including USB-C, optical and coaxial inputs, as well as 4.4 mm, 6.35 mm, RCA, and coaxial outputs, enabling a comprehensive audio experience. With a high output power of 1300 mW + 1300 mW, the amplifier can easily drive HiFi headphones. The three gain levels and volume curves allow the listening experience to be tailored to headphones and earphones with different impedances. The timeless, sleek design of the K11 R2R allows for flexible placement. The high-quality display shows all relevant information, while the pleasant RGB lighting of the FiiO logo provides quick visual feedback on the sampling frequency of the current audio playback. The FiiO K11 R2R offers user-friendly control through a multifunctional rotary knob that covers all essential functions, from power on/off to volume adjustment.