FiiO QX13 Portable DAC and Headphone Amp - Black

DESKTOP-GRADE DACThe chip features a fully differential audio architecture design with 8 channels set up in parallel, and is paired with a pair of ultra-low-noise ES9312 regulators for precise output matching on each audio channel. Audio signals are accurately restored thanks to this pair of chips' optimized power efficiency and effectiveness in reducing clock jitter.

6 HIGH-END TI OP-AMPSThe QX13 uses four wafer-level precision-integrated INA1620 chips, with a specially designed internal layout to significantly reduce crosstalk - for no interference between channels even under extreme conditions. Additionally, two low-noise, low-distortion OPA1692 chips are employed to ensure excellent dynamics under various load conditions.

PATENTED DESKTOP MODEThanks to its new configuration, optimized audio circuit, and more efficient heat dissipation, the QX13 in desktop mode can deliver power comparable to full-size headphone amplifiers while also significantly reducing power consumption. It also features a high- precision power meter, capable of accurately assessing the power supply capabilities of different USB sources and intelligently adjusting accordingly the headphone amplifier’s gain and output power.

DIGITAL & ANALOGUE SEPARATIONThe digital and analog boards are separated and equipped with a shielding cover for isolation, ensuring precise and dynamic signal processing. This design also effectively absorbs and dissipates heat, enabling effective thermal management and ensuring the QX13 delivers sustained high-power output.

Xmos 16-core xu316The QX13 has pro-grade USB Audio quality, with high performance, low latency, and support of up to 768Khz/32bit PCM and DSD512 native decoding. Dual ultra-low phase noise, low temperature drift femtosecond crystal oscillators ensure that audio of various sampling rates is correctly handled for the best sound quality. The XMOS XU316 also allows for a 10-band lossless PEQ, which can be tuned either via the Android FiiO Control app or through the web, making it easy to dial in your sound.

specially-designed audio architectureThe QX13 condenses audio architecture design found in fairly high-end DAC and headphone amplifiers into a small dongle. The QX13 with its design achieves high-precision conversion of audio signals to the DAC thanks to dual crystal oscillators. The audio signal goes through multiple stages of analog processing - including LPF voltage amplification, BUF current boosting, and parallel-enhanced current expansion - delivering sound quality comparable to that of professional DAC and headphone amplifiers.