FiiO
FiiO K13
Best desktop DAC for audiophiles seeking organic, customizable sound.
The FiiO K13 R2R is a fully-balanced desktop DAC and headphone amplifier featuring FIIO’s proprietary 24-bit R2R resistor arrays for a rich, organic sound. It offers dual NOS/OS modes for different listening experiences, a powerful 2400mW+2400mW balanced output, and extensive tuning options including a 10-band PEQ. With LDAC Bluetooth, multiple inputs and outputs, and a robust, shielded power supply, the K13 provides exceptional control and fidelity for all your audio needs.
$319.00
Owner Satisfaction
4.5
/ 5
Category Rank
400
/ 766
#400 in Headphone Amplifiers
Price vs Category Average
-77%
Below average
Color
Black, Silver
/ Black, Silver
Who it's for
- Audiophiles managing multiple headphones and diverse audio equipment
- Budget-conscious listeners seeking high-fidelity sound quality
- Minimalists wanting a durable, space-saving desktop setup
Who should skip it
- Commuters and travelers needing a portable, battery-powered solution
- Power users desiring advanced DSP and deep customization features
- Owners of high-impedance or low-sensitivity reference headphones
Performance breakdown
R2R Sonic Fidelity
Precision resistor arrays deliver a remarkably organic and natural sound signature.
Driving Power
Massive 2400mW output easily handles even the most demanding planar headphones.
Tuning Versatility
Dual decoding modes and 10-band PEQ offer deep, personalized sound control.
Connectivity Options
Comprehensive input suite ensures seamless integration with any desktop audio setup.
Build Integrity
Robust shielding and high-quality components reflect a premium, durable desktop design.
Wireless Performance
Bluetooth 5.4 with LDAC support provides high-fidelity streaming without the wires.
Key Specs
Color
Black, Silver
Main control chip (MCU)
ESP32-S3
USB chip
XMOS XU316
DAC
Fully differential true 24-bit R2R DAC resistor arrays
Volume control chip
NJW1195A
Inputs & outputs
USB (384kHz/32bit, DSD256), Coaxial (192kHz/24bit, DSD64), Optical (96kHz/24bit)
Power input
AC 100–240V 50/60Hz; DC 12V/2.5A
Dimensions
~210 × 188 × 42mm (including feet)
Features
- Fully-differential 24-bit R2R DAC with 192 precision resistors for a natural sound signature.
- Dual NOS and OS decoding modes offer distinct listening experiences.
- Supports high-resolution audio formats including PCM 384kHz/24bit and DSD256.
- Versatile connectivity with XLR and RCA preamp/line outputs.
- 10-band high-precision PEQ controllable via app and web interface for personalized sound.
- Fully balanced audio amplifier circuit ensures minimal distortion and excellent interference rejection.
- DC/AC dual power supplies offer flexibility and the option to use external linear supplies.
- Bluetooth 5.4 with LDAC support for high-quality wireless audio streaming.
What customers say
Customers consistently praise the FiiO K13 for its exceptional sound quality, noting a significant improvement in audio clarity and power for a device in its price range. Many highlight its robust build and premium feel, suggesting a product that offers substantial value. Its straightforward operation also contributes to a positive user experience, making it a popular choice for those seeking an affordable yet high performing audio upgrade.
Know before you buy
The R2R architecture uses a network of precision resistors to convert digital signals to analog, which is widely prized for producing a more natural, organic, and fluid sound compared to standard delta-sigma DAC chips.
NOS (Non-Oversampling) mode bypasses digital filtering to provide a raw, direct signal path that many audiophiles prefer for its purity. OS (Oversampling) mode applies digital filtering to smooth out the signal, which can result in a cleaner, more refined presentation.
Yes, the K13 features a 10-band parametric equalizer (PEQ) that you can control via a web interface or app, allowing you to precisely tune the frequency response to match your personal preferences or correct headphone imbalances.
With a balanced output of 2400mW+2400mW, the K13 is exceptionally powerful and capable of driving almost any demanding headphone on the market with ease and authority.
Yes, it includes Bluetooth 5.4 with support for the LDAC codec, allowing you to stream high-resolution audio wirelessly from your smartphone or tablet with minimal loss in quality.
The K13 is designed with dual power inputs, allowing you to use the standard AC power or an external 12V DC linear power supply if you want to further reduce noise and improve signal stability.
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