Octa DAC Chip Matrix – 8 x CS43198 The CS43198, a Cirrus Logic flagship DAC chip, has an excellent dynamic range, outstanding resolution of micro details, and an impressively low noise floor, adding up to exceptional performance. The Octa DAC Chip Matrix with our implementation guarantees both superb sound quality and DAP-leading measurements. THD+N hits -123dB, the best among portable players. This groundbreaking achievement sets a new standard in the industry. The more the merrier. Taking advantage of quantity to achieve better quality and achieving extraordinary results. FPGA-MASTER 2.0 - The Evolved Audio System Controller After years of algorithm development, our FPGA-Master has entered generation 2.0. As the audio system controller, it directly requests audio data from the SoC and plays a major role in signal reproduction and maintaining signal integrity. It synchronises and generates all audio clocks utilising two NDK femtosecond oscillators to achieve a fully synchronised single clock source. The FPGA-Master 2.0 is precise, and adjusts the DAC clock, data and constructs the FIR filter. FIR Filter - The DAC Matrix Magician Thanks to the new algorithm of FPGA-MASTER2.0, the potential of the 8pcs CS43198 can be further explored and developed. Synchronous parallel output mode: This reduces "discrete distortion" between DACs to improve overall performance. FIR 2x mode, FIR 4x mode: With FPGA-MASTER 2.0, picosecond-level precise control and adjustment of the DAC clock and data are achieved, making each DAC data stream independently adjustable. Through the "delay parallel" of 4 DACs, the DACs form a hardware analogue FIR filter, which averages the differences between multiple DACs, reducing distortion and effectively improving sound details and realism. Optimised External Power Supply When connected to a USB charger that delivers sufficient power, the power supply is allocated into two distinct routes. One route directly powers the DX260MK2 and overrides the internal battery, so the battery isn’t being used. The other route charges the battery and completely bypasses it when it is fully charged. This design strategically mitigates issues like overheating during simultaneous charging and usage, ensuring optimal battery protection and longevity. Android13 + Mango OS / Open OS + Closed Linux OS The DX260MK2 comes with the latest Android 13 system, allowing you to easily install streaming APPs for a seamless Android experience. The DX260MK2 efficiently bypasses the SRC at the system level. Whether it's Mango Player or a third-party streaming APP, you can take advantage of the system-level "Non-SRC" feature, giving you the highest quality sound from the recording. The DX260MK2 features the Mango OS, a Linux-based audio system that has been meticulously designed for exceptional audio playback. It has accumulated a lot of optimisations to the underlying driver algorithms, which focus on audio playback. This pure sound system has no WiFi or Bluetooth interference, lowers EMI, and provides a purer listening experience. User Removable Back Cover Introducing iBasso’s new ID design, complete with the return of volume control guards and a more industrial look. The back cover is easily removable with total battery access, making replacement of the battery very convenient.