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Key Features
The FiiO K19 Desktop DAC and Headphone Amplifier features DEL (Dual-Engine Limiter) technology, allowing for a 31-band high-precision lossless PEQ so you can customise the sound of your desktop setup. An eight-channel THX AAA 788+ amplifier provides a robust 8,000mW per channel, while the dual ES9039SPro flagship DACs deliver 32-bit/768 kHz audio in stunning clarity. The K19 also boasts a wide range of inputs, including RCA, HDMI ARC and Bluetooth, catering to both modern and traditional listening habits.
Product Ref: 299168
The DEL (Dual-Engine Limiter) technology helps minimise distortion and, thanks to proprietary algorithms, enables access to audio effects such as Dynamic Range Compression, and Dynamic Range Enhancement. This technology also includes a precision PEQ to offer extensive customisation with 31 adjustable bands, each adjustable from +12 to -24 dB. This feature is perfect for audiophiles wanting to fine-tune their audio outputs to their precise preferences.
The two ES9039SPro DAC chips feature the latest fourth generation Hyperstream architecture that can deliver PCM data up to 32-bit/768kHz and DSD up to DSD512. This setup separates audio channels to help maintain impeccable sound quality with ultra-low distortion and ultra-high dynamic range. These DACs are also capable of MQA rendering, allowing for stunning audio quality that matches a song’s studio master recordings.
Boasting an impressive power output of 8,000mW, the THX AAA 88+ amplifier chipset delivers an excellent sound through 4.4 and 6.5mm headphone outputs. Its fully balanced four-channel design maximises audio fidelity, reduces crosstalk between channels, and allows for great power efficiency. With these high-end audio features, the K19 provides immersive listening to both entry-level and high-end headphones.
The inclusion of an ADI ADSP-21565 DSP chip with SHARC+ core enhances the K19’s audio processing capabilities. It supports complex audio processing tasks while maintaining the integrity of high-resolution signals, ensuring efficient and high-fidelity sound reproduction. There are also two Ultra-Low Phase Noise Crystal Oscillators that enable exceptional signal reproduction.
With broad input/output options, the K19 will act as the focal point of your audio system. The USB, RCA, optical, coaxial, and HDMI ARC connections will let you enjoy immersive headphone listening from your PC, games console, Blu-ray player, and more. The K19 even includes Bluetooth, so you can wirelessly stream your favourite music in AptX Adaptive and LDAC codecs.
The unibody diecast aluminium chassis offers great shock resistance and firm rigidity, enabling optimal stability on your desktop. Built for versatility, the K19 can be positioned both horizontally and vertically to suit the layout of your setup. The body is also carefully polished using a multi-axis CNC machining process, giving this unit a rich look.
Name/Model No. | K19 |
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Hardware solution | DAC: 2 x ES9039SPROUSB: XMOS XU316Bluetooth decoding: QCC5125AMP: B7W+THX788+ |
Working mode | USB DAC modeCoaxial decoding modeOptical decoding mode HDMI decoding modeHDMI ARC decoding modeBluetooth receiving mode |
Colour | BlackSilver |
Weight | 1800g |
Dimensions (W x H x D) | 205 x 38.7 x 252mm |
Volume control type | KnobRemote control |
MQA | Support MQA global decoding |
Drive-free mode | Supported |
Power supply | Support AC 100-240V 50/60Hz; DC 15V/≥3A (choose one of the two) |
Bluetooth reception (5.1) | SBCAACAptXAptX LLAptX HDAptX AdaptiveLDAC |
Gain | Ultra high gainSuper high gainHigh gainMedium gainLow gain |
Display | 1.30-inch TFT (240x240) fully laminated screen |
Display status indication | VolumeGainOutput modeWorking modeTransmission formatSampling rateEQ, etc |
Bluetooth format supported | Supported |
Sample rate indication | Supported |
FIIO Control | Supported |
Firmware upgrade | System firmware: upgrade through front panel USB interfaceXMOS firmware: upgrade via front or rear panel USB interfaceBluetooth firmware: Upgrade via FIIO Control |
Remote control | Supports infrared remote control (only the delivered remote control is supported) |
Maximum supported sampling rate | USB decoding: supports up to 768kHz/32bit, DSD512 (Native)Coaxial input decoding: supports up to 192kHz/24bit, DSD64Optical input decoding: supports up to 96kHz/24bitCoaxial output: supports up to 192kHz/24bit, DSD64Optical fiber output: supports up to 192kHz/24bitHDMI output: supports up to 192kHz/24bitHDMI ARC decoding: supports 44.1/48kHz |
Adaptation impedance | PO: 8-1500BAL: 8-3500 |
Product Code | K19 Silver |
Buttons | Encoder knob (1 x volume knob with button + 1 x menu knob with button) |
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USB interface | Type-C USB (2 x data transmission interface + 1 x RS232 DSP adjustment interface) |
DC power input interface | Φ6.2mm DC socket |
Toggle Switches | 1 x DC power supply and AC power supply selector switch1 x Ground selector switch |
Digital optical input interface | Fiber optic socket |
Digital coaxial input interface | RCA socket |
Digital optical output interface | Fiber optic socket |
Digital coaxial output interface | RCA socket |
Balanced output interface | 1 x Standard 4.4mm socket1 x XLR4 balanced socket |
Headphone output interface | Standard 6.35mm socket |
Balanced line output interface | XLR3 balanced socket |
Single-ended line output interface | 2 x RCA socket |
HDMI Interface | 1 x HDMI IN interface1 x HDMI OUT(ARC) interface |
Trigger interface | 1 x Standard 3.5mm headphone jack (TRIGGER IN interface + 1 x TRIGGER OUT interface) |
Output power 1 | L+R≥400mW+400mW (16Ω, THD+N <1 ) |
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Output power 2 | L+R≥230mW+230mW (32Ω, THD+N <1 ) |
Output power 3 | L+R≥270mW+270mW (300Ω, THD+N <1 ) |
Noise floor | <3.5µV (A-weighted) |
Frequency response | 20Hz-20kHz: Attenuation <0.2dB20Hz 80kHz: Attenuation?3dB |
Output impedance | Less than 0.6Ω (32Ω) |
Crosstalk | >75dB (1kHz@32Ω) |
THD+N | Less than 0.0003 (1kHz@4dB@32Ω) |
SNR | >127dB (A-weighted) |
Peak output voltage | >22.5Vp-p |
Output power 1 | L+R≥2400mW+2400mW?16Ω, THD+N?1 ) |
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Output power 2 | L+R≥1250mW+1250mW?32Ω, THD+N?1 ) |
Output power 3 | L+R≥135mW+135mW?300Ω, THD+N?1 ) |
Noise floor | <3.5μV (A-weighted) |
Frequency response | 20Hz-20kHz: Attenuation <0.2dB20Hz-80kHz: Attenuation?3dB |
Output impedance | Less than 0.6Ω?32Ω? |
Crosstalk | ≥75dB (1kHz@32Ω) |
THD+N | Less than 0.0003 (1kHz/-4dB@32Ω) |
SNR | ≥127dB (A-weighted) |
Peak output voltage | ?17.5Vp-p |
Output power 1 | L+R≥400mW+400mW (16Ω, THD+N <1 ) |
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Output power 2 | L+R≥800mW+800mW (32Ω, THD+N <1 ) |
Output power 3 | L+R≥110mW+110mW (300Ω, THD+N <1 ) |
Noise floor | <6µV (A-weighted) |
Frequency response | 20Hz-20kHz: Attenuation <0.2dB20Hz 80kHz: Attenuation?3dB |
Output impedance | Less than 0.8Ω (32Ω) |
Crosstalk | >120dB (1kHz@32Ω) |
THD+N | Less than 0.0002 (1kHz@4dB@32Ω) |
SNR | >128dB (A-weighted) |
Peak output voltage | >4.5Vp-p |
Output power 1 | L+R≥400mW+400mW (16Ω, THD+N <1 ) |
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Output power 2 | L+R≥500mW+500mW (32Ω, THD+N <1 ) |
Output power 3 | L+R≥550mW+550mW (300Ω, THD+N <1 ) |
Noise floor | <6µV (A-weighted) |
Frequency response | 20Hz-20kHz: Attenuation <0.2dB20Hz 80kHz: Attenuation?3dB |
Output impedance | Less than 0.8Ω (32Ω) |
Crosstalk | >120dB (1kHz@32Ω) |
THD+N | Less than 0.0003 (1kHz@4dB@32Ω) |
SNR | >126dB (A-weighted) |
Peak output voltage | >3.5Vp-p |
THD+N | 122dB (A-weighted) |
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Crosstalk | >110dB (1kHz@10kΩ) |
Noise floor | <1.6µV (A-weighted) |
Frequency response | 20Hz-20kHz: Attenuation <0.1dB |
Line output level | 2.5Vrms (1kHz@10kΩ) |
THD+N | < 0.00025 (1kHz/0dB@10kΩ) |
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SNR | ≥128dB (A-weighted) |
Crosstalk | ≥120dB (1kHz@10kΩ) |
Noise floor | <2.0µV (A-weighted) |
Frequency response | 20Hz-20kHz: Attenuation <0.1dB[-] 20Hz-80kHz: Attenuation <3dB |
Line output level | 4.8Vrms (1kHz@10kΩ) |