FiiO K13 Black

The FiiO K13 is a desktop DAC and headphone amplifier built around two ES9039Q2M flagship DAC chips and a fully symmetrical amplifier architecture. It combines high-resolution digital conversion, powerful headphone amplification, Bluetooth connectivity and flexible preamplifier/line outputs in a compact desktop unit.

The K13 supports PCM up to 768 kHz/32 bit and DSD512. Its fully differential signal path covers the DAC, I/V conversion, low-pass filtering, preamplifier buffer and headphone amplifier stages, providing high dynamic range, low distortion and effective noise rejection. Headphone output power reaches 2400 mW + 2400 mW into 32 Ω.

For wireless listening, the K13 features Bluetooth 5.4 with LDAC, AAC and SBC codec support. It also provides XLR and RCA preamplifier/line outputs, while its integrated 30 W power supply can be supplemented by an external 12 V DC power supply with a 5.5 × 2.1 mm barrel connector.

The K13 features a high-contrast HD LCD display showing sampling rate, volume, gain and output mode. Adjustable RGB lighting indicates the current sampling rate, while three gain stages and independently stored PO and PRE volume levels allow flexible system configuration.

Its 10-band PEQ supports adjustable frequency bands in all operating modes, with AUTO EQ available through the FiiO Control app or web interface. The PEQ supports audio signals up to PCM 192 kHz/24 bit. The reinforced unibody aluminum alloy housing uses FiiO's "Skylight" design to provide a view of the DAC module.

Features
Two ES9039Q2M flagship DACs
Fully symmetrical amplifier architecture
2400 mW + 2400 mW output power into 32 Ω
Bluetooth 5.4 with LDAC, AAC and SBC
XLR and RCA preamplifier/line outputs
PCM up to 768 kHz/32 bit and DSD512
Integrated 30 W DC/AC power supply
10-band precision PEQ and AUTO EQ
Three gain stages
High-contrast HD LCD display
Adjustable RGB lighting
Overheating and overload protection
Shutdown timer from 1 to 99 minutes

Specifications
DAC: 2 × ES9039Q2M
USB Controller: XMOS XU316
Maximum PCM: 768 kHz/32 bit
Maximum DSD: DSD512
Headphone Output Power: 2400 mW + 2400 mW @ 32 Ω
Bluetooth: 5.4
Bluetooth Codecs: LDAC, AAC, SBC
PEQ: 10-band
PEQ Maximum Sampling Rate: PCM 192 kHz/24 bit
Power Supply: 30 W, 12 V / 2.5 A
External DC Input: 12 V, 2.5 A or higher
DC Connector: 5.5 × 2.1 mm
DAC Clock Oscillators: 2 × ACCUSILICON AS318-L
LDO Regulators: Up to 18
DC-DC Converters: 5
Audio Capacitors: 4 × RA3 series ELNA
Film Capacitors: 8 × WIMA
MELF Resistors: 24

In The Box
FiiO K13 desktop DAC and headphone amplifier
Power supply