DEMO Fiio K19

Demo, excellent condition. Boxed, complete, full warranty, black finish.

Fiio K19 Flagship Desktop dac, Headphone Amp and 31 band Parametric EQ. Update and improve the audio quality of your home system or headphones with this perfect lossless P-EQ.

Fix bass peaks in your room, add more fine treble to speakers or headphones, adjust the mid-bass up for more warmth, or down for more clarity. Fiio K19 gives you an ultimate ability to control the acoustics of your system! 

• 31-band high-precision lossless PEQ
• Dual ESS 8 channel flagship DAC ES9039SPRO 
• 8000mW+8000mW powerful output
• 8 channel THX AAA 788+ amp
• High performance ultra-low phase noise femtosecond crystal oscillator
• Global clock management
• Fully balanced design
• supports decoding via HDMI/ARC
  

Innovative, 31-band high-precision lossless PEQ(check our blog for images of the eq software, used with the k19 in store)

Fiio K19 features DEL (Dual Engine Limiter) technology, and through proprietary algorithms, the K19 can apply various audio effects such as dynamic range compression (DRC) and dynamic range enhancement (DRE) as well as an advanced limiter to prevent clipping.

Also on the Fiio K19 is an adjustable 31-band high-precision lossless PEQ*, which supports direct adjustment of PCM 44.1k~192k audio signals without resorting to sampling rate conversion (SRC).

For each band, the gain can be adjusted between +12~-24dB and the Q value can be adjusted between 0.4dB~128dB.  PEQ presets on the K19 can be shared between users. Being able to import and export PEQ presets opens up a whole new dimension to sound adjustment!

*PEQ adjustment is supported on Windows and Mac computers, as well as with the mobile control app 

For a FIIO first, the Fiio K19 flagship desktop DAC and headphone amplifier utilizes an ADI ADSP-21565 DSP chip with the SHARC+ core backed by a custom ultra-low phase noise femtosecond crystal oscillator. This DSP chip is what makes the 31-band high-precision lossless PEQ possible. The ADI DSP chip not only ensures that audio signals after PEQ adjustment are of high quality and with minimal distortion, it also helps to enable powerful system protection functions that safeguard both the K19 and the other devices and headphones connected to it.

Flagship ESS 8-channel ES9039SPRO*2 DACs

Fiio K19 features two new ESS 8-channel ES9039SPRO DAC chips, featuring the fourth generation 32Bit HyperStream architecture and capable of ultra-high dynamic range with ultra-low noise. These DAC chips allow the K19 to output clearer and richer audio with plenty of detail. highlight specs include DNR: 132dB & THD+N: -122dB. 

8-channel THX AAA 788+ headphone amplifier

Fiio K19 features a new headphone amplifier design consisting of an 8-channel THX AAA 788+ architecture working together in parallel and backed by a high-voltage power supply. The THX amp chips are connected in parallel via 2×2 groups to make up a totally balanced, 4-channel amplification system.

The result is enhanced transients, and high-power output up to 8000mW+8000mW with a 32Ω load – allowing the K19 to drive all kinds of headphones with ease.

Dual ACCUSILICON ultra-low phase noise femtosecond crystal oscillators

Fiio K19 employs two industry-leading ACCUSILICON AS318-B ultra-low phase noise femtosecond crystal oscillators (45.1584MHz, 49.1520MHz), which are 100% pre-screened before being selected for use in the K19. These effectively reduce the impact of phase noise on audio signals and allow for accurate audio restoration and different sampling rates – resulting in purer and more stable sound.

High-quality digital audio processing

A Fiio first, Fiio K19 utilizes a powerful quad-core FPGA as a high-definition digital signal processing center. The FPGA is responsible for handling all incoming digital signals, including Bluetooth reception and decoding, USB decoding, coaxial and optical decoding, HDMI/ARC decoding, and DSP digital signal processing.

These digital signals are directly transmitted through two sets of I2S channels to the dual ES9039SPRO DACs, ensuring minimal distortion and loss of audio signals in the digital audio processing chain. 

Fully balanced design

Fiio K19 processes audio signals through a fully differential chain – from the dual DACs, to the I/V conversion, to the low-pass filtering, and finally to the balanced headphone amplifier to ensure high dynamics and minimal crosstalk.

New flagship, ultra-thin die-cast unibody shock-proof construction

The new K19 design is made of a die-cast unibody aluminum alloy body for a totally seamless design. The aluminum alloy body is carefully polished by a multi-axis CNC machine to a quality befitting of a flagship. This aluminum alloy body not only features reduced thickness, but is also capably shock-proof. And when paired with the included vertical stand, the K19 is simply stable! 

HDMI IN and ARC capabilities are present in an FIIO desktop DAC and amp for the first time. The K19 supports decoding from HDMI2.0 input, HDMI output and HDMI ARC audio return channel functionality, opening the doors to a new way of experiencing an immersive audiovisual experience.

HDMI decoding/output: supports up to 192kHz/24bit sampling rate / HDMI ARC: supports 44.1/48kHz sampling rates

Separated and shielded circuit boards

The digital and analog audio circuits of the K19 lie on separate boards for full isolation and greatly reduced interference. There are metal shields for the DSP board, DAC board, and the THX headphone amplifier board, as a result of the digital board and module board adopting a compartmentalized aluminum alloy isolation design. 

Carefully designed power supply - DC/AC dual power supply

Fiio K19 uses a new generation 40W lower-noise, high-efficiency, long-lasting industrial-grade power supply. This power supply supports an ultra-wide range of input voltage (85~305VAC)  with high reliability of around 500,000 hours. The K19 can also be used with an external DC power supply*, allowing you to pair it with a high-performance linear power supply, letting you experience a different sound.  *External DC power supply supports 15V-3A

Separate power supplies for the digital and analog audio circuits effectively avoid crosstalk and interference between the two circuits.  Fiio K19’s analog audio circuit is powered by a multi-stage power supply. Each stage uses a large number of precision LDOs for secondary voltage stabilization to ensure continuous pure clean power.

Audiophile-grade components: 

4 WIMA capacitors + 4 ELNA MILIC capacitors :Enhanced sound quality and soundstage

8 Panasonic film capacitors + 36 MELF resistor :Low temperature and low noise under any temperature ensure stable high-quality sound 

Fiio K19’s internal heat dissipation system consists of thermally conductive material being in contact with the chips inside, which transfers the heat from the chips to the thermally conductive material and finally to the aluminum alloy outer frame. In addition, the body features a honeycomb mesh design, which allows for convection heat dissipation. The heat dissipation systems of Fiio K19 allow the machine to consistently output high power without the user worrying about heat issues.

USB decoding: decoding up to 768kHz/32bit, DSD512, MQA full decoding

Coaxial input; Optical input; HDMI input; HDMI ARC: supports audio return from TVs and other devices

Bluetooth input: the QCC5125 chip supports aptX HD/aptX Adaptive/LDAC codecs

Various analog output + digital output modes

PO+PRE OUT (default): front headphone out + rear audio out (volume adjustable)

PO: audio output to front headphone jack (volume adjustable)

PRE OUT: audio output to rear connectors (volume adjustable)

LO: audio output to rear connectors (fixed level output)

COAXIAL: digital output & OPTICAL

Use both vertically and horizontally.Allows K19 to save space and effectively dissipate heat; when used vertically, it also can be used as a unique headphone stand

1.3-inch full color display for status, settings indications. 

12V TRIGGER bidirectional trigger: Supports active/passive control modes, can be linked to other 12V TRIGGER to switch devices on and off in sync

GND/LIFT ground switch:Reduces crosstalk and interference between devices

Custom infrared remote control included: switch between operating modes, select EQ, adjust volume, and other functions from a distance

Supports FIIO Control app:

Dual indicator lights on the volume knob

Quick start guide, AC power cord, Type-C to USB-A adapter, 6.35mm adapter, stand (color-matching with main unit), Vertical headphone stand support (color-matching with main unit), Screwdriver, Metal XLR4 dust cover (pre-installed), Feet stands, Screws, USB2.0 data cable, Infrared remote control, 3.5mm audio cable, Dual Type-C data cable

• DSP: ADI SHARC+ ADSP-21565
  
• DAC: 8-channel ES9039SPRO*2
  
• Headphone amplifier: 8-channel THX AAA 788+
  
• USB chip: XMOS XU316
  
• USB decoding support: 768kHz/32bit, DSD512, MQA full decoding
  
• USB interface: Type-C 
  
• Bluetooth chip: QCC5125, Bluetooth 5.1: SBC/AAC/aptX/aptX LL/aptX HD/atpX Adaptive/LDAC
• Display: 1.3-inch screen (240*240)
  
• Power output 1: L+R≥2300mW+2300mW (32Ω single-ended, THD+N＜1%, Ultra high gain mode)
  
• Power output 2: L+R≥8000mW+8000mW (32Ω balanced, THD+N＜1%, Ultra high gain mode)
  
• Power output 3: L+R≥270mW+270mW (300Ω single-ended, THD+N＜1%, Ultra high gain mode)
• Power output 4: L+R≥1100mW+1100mW (300Ω balanced, THD+N＜1%, Ultra high gain mode)
  
• Signal-to-noise ratio: ≥128dB (A-weighted)
  
• Output impedance: ＜0.6Ω (32Ω)
  
• THD+N: ＜0.0002%(1kHz/-6dB@32Ω)
  
• Weight:  1800g
  
• Size:  25 x 22.5 x 3.7 cm
  
• Warranty: 1 year Fiio Canada