FiiO KA1 Type C Red

The FiiO KA11 is a compact USB DAC and headphone amplifier designed to improve audio playback from smartphones, tablets and computers. Built around a Cirrus Logic CS43131 DAC and an SGM8262 operational amplifier, it combines high-resolution audio decoding with a powerful 3.5 mm headphone output in a lightweight, portable design.

Despite its small size, the KA11 delivers up to 245 mW + 245 mW into 16 Ω or 200 mW + 200 mW into 32 Ω. Its dedicated Hi-Fi circuit incorporates a high-precision crystal oscillator and independent power supply, while the low-power design helps reduce battery consumption when used with a smartphone.

The cable uses high-purity, oxygen-free copper conductors with palladium plating. The conductors are insulated with flexible silicone and covered with a braided fabric layer, providing a compact and durable connection. The aluminium-magnesium alloy housing combines a robust construction with a distinctive finish.

The KA11 supports PCM audio up to 32-bit/384 kHz and native DSD256 decoding. It is available with either a USB Type-C or Lightning connector for compatibility with Android and iOS devices, as well as Windows and macOS computers. UAC1.0 mode enables plug-and-play compatibility with devices such as Nintendo Switch and PS5.

Through the FiiO Control app for Android, users can adjust settings such as RGB lighting and digital filters. The indicator light displays the current audio format: light blue for standby or PCM up to 48 kHz, yellow for higher-rate PCM and green for DSD playback. The KA11 is Hi-Res Audio certified.

Features
Cirrus Logic CS43131 DAC
SGM8262 operational amplifier
3.5 mm single-ended headphone output
Output power: 245 mW + 245 mW at 16 Ω
Output power: 200 mW + 200 mW at 32 Ω
Output power: 22 mW + 22 mW at 300 Ω
Supports PCM up to 32-bit/384 kHz and DSD256
High-purity, palladium-plated oxygen-free copper cable
Aluminium-magnesium alloy housing
Low-power design to help reduce smartphone battery consumption
UAC2.0 and UAC1.0 modes
Android app control for RGB lighting and digital filters
Hi-Res Audio certified

Specifications
DAC: Cirrus Logic CS43131
Operational amplifier: SGM8262
Maximum supported formats: PCM 32-bit/384 kHz, DSD256
Headphone output: 3.5 mm
Output power at 16 Ω: ≥245 mW + 245 mW (THD+N < 1%)
Output power at 32 Ω: ≥200 mW + 200 mW (THD+N < 1%)
Output power at 300 Ω: ≥22 mW + 22 mW (THD+N < 1%)
Signal-to-noise ratio: ≥125 dB (32 Ω, A-weighted)
Noise floor: Output impedance: THD+N: <0.0006% (32 Ω), <0.00038% (300 Ω)
Input connector: USB Type-C or Lightning, depending on version
Dimensions: Approx. 4.45 × 0.97 × 1.05 cm
Cable length: Approx. 6.55 cm
Weight: Approx. 8.5 g
Colours: Midnight Black, Sunrise Silver

In The Box
FiiO KA11
User manual