IBASSO DC-TONFA R2R DAC Portable Headphone Amplifier Blue

The DC-Tonfa by iBasso is a USB DAC and headphone amplifier with a discrete, balanced and differential R2R architecture, designed to handle the conversion of digital streams while directly driving a headphone or in-ear monitors. Its network of 312 metal film resistors individually calibrated, combined with an FPGA and a dual Accusilicon femtosecond clock, helps limit conversion and synchronization errors in order to preserve signal accuracy.

Intended for portable setups as well as computer audio systems, it combines balanced amplification capable of delivering up to 800mW + 800mW into 32Ω, advanced signal management with a NOS mode and proprietary digital filters, as well as connectivity supporting UAC 2.0, UAC 1.0 and SPDIF modes. This versatility, complemented by the OLED screen, the multifunction wheel and control via the iBasso app, allows it to integrate with different sources while maintaining precise adjustment of listening parameters.

iBasso DC-Tonfa: NOS mode and four proprietary digital filters

The DC-Tonfa offers a NOS mode, without oversampling, as well as four proprietary digital filters, controlled by the FPGA in order to adapt signal processing to listening preferences and to the characteristics of each recording. Beyond the direct reproduction enabled by the NOS mode, these filters offer several impulse responses and attenuation slopes, allowing the behavior of the converter to be modified while maintaining compatibility with high-resolution PCM streams. This approach thus offers a finer customization of the reproduction, from a fast response to a filtering with more gradual attenuation.