Open Box: FiiO KA13 Portable DAC and Headphone Amplifier

Open Box: FiiO KA13 Portable DAC Headphone Amplifier (Black) is a compact, high-performance USB-C DAC and headphone amp that brings desktop-grade sound to phones, tablets, laptops, and more in a tiny form factor. It’s ideal for audiophiles who want better sound quality and more power than typical device audio outputs — without carrying bulky gear.

Key Features

High-Resolution Audio Support — Plays up to 32-bit/384 kHz PCM and DSD256 for detailed, lifelike sound.

Powerful Output — Switchable Desktop Mode gives up to 550 mW balanced and 170 m W single-ended power, enough to drive a wide range of headphones.

Dual DAC & Amp Chips — Uses two CS43131 DACs and two SGM8262 op-amps for clean, dynamic performance.

Balanced & Single-Ended Outputs — Includes both 4.4 mm balanced and 3.5 mm single-ended headphone jacks

RGB Sampling Indicator — Ambient light shows the current sample rate at a glance.

SPDIF Output — With appropriate cables/adapter and app setting, you can route digital audio to external gear.

App Customization — Control digital filters and output modes using the FiiO Control app (Android/iOS).

Specifications

•Dimensions: 56.3 × 22 × 10.5 mm

•Weight: 19 g (without cable)

•DAC Chips: Dual CS43131

•Op-amps: Dual SGM8262

•Audio Outputs:

o4.4 mm balanced — up to 550 mW

o3.5 mm single-ended — up to 170 mW

•Supported Formats: PCM 32-bit/384 kHz, DSD256

•SNR: ≥122 dB (balanced) / ≥123 dB (single-ended)

•THD+N: < 0.0005%

Compatibility

•Works with USB-C and Lightning-equipped smartphones, tablets, laptops, and computers. Functions as a USB DAC/Amp and can deliver portable high-quality sound on the go or in desktop setups.