FiiO KA13 Black Portable DAC & Headphone Amplifier USB Dongle

FiiO KA13 Portable DAC and Headphone Amplifier - Dual CS43131 DAC Chips, 550mW Balanced Power, Desktop Mode The FiiO KA13 is a compact yet extraordinarily capable portable DAC and headphone amplifier dongle that redefines what a USB audio adapter can deliver. Built around a dual CS43131 DAC chip configuration paired with dual SGM8262 op-amps, the KA13 achieves a level of sonic performance rarely found in a device of its size, offering the kind of clarity, detail, and dynamic range that audiophiles expect from full-sized desktop equipment - all in a form factor that fits in your pocket. At the core of the FiiO KA13 is its signature desktop mode, hinted at by the engraved lightning bolt on the chassis. When activated, desktop mode unlocks the full output potential of the KA13, pushing balanced output power to an impressive 550mW 550mW into 32Ω via the 4.4mm balanced headphone output - a figure that comfortably drives even demanding over-ear headphones with authority and control. In single-ended mode via the 3.5mm output, the KA13 delivers 170mW 170mW into 32Ω, more than sufficient for sensitive in-ear monitors and everyday listening. Audio performance is anchored by the dual CS43131 DAC chips - a high-performance combination that supports PCM up to 384kHz/32-bit and DSD256 decoding, enabling the FiiO KA13 to handle the most demanding high-resolution audio files with ease. Distortion is kept to an extraordinary THD N of less than 0.0005% on both single-ended and balanced outputs, while the signal-to-noise ratio reaches ≥123dB (A-weighted, single-ended), ensuring a clean, silent background even with the most sensitive earphones. The noise floor measures below 1.7μV on the single-ended output and below 3.1μV on the balanced output. The KA13 features a detachable cable design with a USB Type-C connector, and the package includes both a Type-C to Type-C cable and a Type-C to Lightning cable, ensuring compatibility with Android, iOS, Windows, and Mac devices right out of the box. The 3.5mm single-ended output additionally supports SPDIF coaxial output, allowing the KA13 to function as a mini digital interface that feeds an external DAC - a feature unique to this class of device and enabled via the FiiO Control app. The FiiO Control app (Android) unlocks the full feature set of the KA13, including audio filter selection, RGB ambient light window control, and SPDIF output toggling. The RGB ambient light window provides instant visual feedback on the current sampling frequency: light blue for PCM ≤48kHz, yellow for PCM >48kHz, and green for DSD - a functional and visually distinctive design element that makes the KA13 as informative as it is attractive. The CNC-machined metal body features unique front-panel lines and a refined rear texture, combining an aggressive yet forward-looking aesthetic with a soft, comfortable feel in hand. Available in Midnight Black and Dawn Silver, the FiiO KA13 is the ideal choice for anyone seeking desktop-level hi-fi performance from a truly portable, plug-and-play USB DAC and headphone amplifier. Hi-Res Audio certified and engineered to reveal every detail in your music collection.