SKU: 76894138394

FiiO K19 Desktop DAC & AMP

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Description

FiiO K19 Desktop DAC & AMPDescription FiiO K19 is a flagship grade desktop DAC and headphone amplifier designed for high fidelity audio reproduction, featuring dual ESS ES9039SPRO DACs and an 8 channel THX AAA 788+ amplification circuit. Get this amazing DAC now from the official dealer of FiiO in Bangladesh, Gears for Ears today with an official 1 year warranty. Innovative, 31 band high precision lossless PEQ The K19 features DEL (Dual Engine Limiter) technology, and through

Description

FiiO K19 is a flagship-grade desktop DAC and headphone amplifier designed for high-fidelity audio reproduction, featuring dual ESS ES9039SPRO DACs and an 8-channel THX AAA 788+ amplification circuit. Get this amazing DAC now from the official dealer of FiiO in Bangladesh, Gears for Ears today with an official 1 year warranty.

Innovative, 31-band high-precision lossless PEQ

The 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 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 a range of +12~-24dB and the Q value can be adjusted between a range of 0.4dB~128dB. And the PEQ curves don’t have to be used only by you – 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

ADI ADSP-21565 with SHARC+ core

For the first time in an FIIO product, the 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 featuring a high clock frequency of 800MHz and capable of 64-bit double precision floating point calculations is what makes the 31-band high-precision lossless PEQ possible in the K19. 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

Inside the K19 are two of the 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.

DNR: 132dB

THD+N: -122dB

8-channel THX AAA 788+ headphone amplifier

The K19 features a new headphone amplifier design consisting of an 8-channel THX AAA 788+ headphone amp 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 high-performance ultra-low phase noise femtosecond crystal oscillators

The 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 femtosecond crystal oscillators 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 no matter the source sampling rate.

High-quality digital audio processing architecture

For the first time in an FIIO product, the 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

The 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. Also, various parts of the audio circuits such as the IV, LPF, and preamplifier use multiple precision op-amps including the OPA2211 and the OPA1602 to ensure the K19 outputs stable, high-quality sound.

A new HiFi direction, supports HDMI/ARC decoding

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. These measures all help to minimize crosstalk to ensure signal purity. In addition, the honeycomb-mesh aluminum alloy body can also help to further reduce external interference, allowing you to enjoy pure, clean music.

DC/AC dual power supply

Built into the K19 is a new generation 40W lower-noise, high-efficiency, long-lasting industrial-grad power supply. This power supply supports an ultra-wide range of input voltage (85~305VAC) and can operate under extreme temperatures (-40℃~85℃) with high reliability of around 500000 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 analog and digital power supplies

Separate power supplies for the digital and analog audio circuits effectively avoid crosstalk and interference between the two circuits. It also allows for better power supply isolation.

Multi-stage analog power supply

The K19’s analog audio circuit is powered by a multi-stage power supply. The numerous stages of the analog power supply mean that there are power control circuits for the digital-to-analog conversion, LPF, preamplifier, headphone amp and other audio circuit stages. 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 in all conditions

4 sets of silver-plated oxygen-free copper connecting cables

Audio signals transmitted between different internal boards are high-quality with minimal loss via the use of silver-plated oxygen-free copper wires. 

NEUTRIK gold-plated connectors

Tulip-shaped connectors that are anti-oxidation and wear-resistant, allowing for precise and reliable connections

Dual internal and external heat dissipation, high energy coolly output

The 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 thermally conductive aluminum alloy body features a honeycomb mesh design, which allows for convection heat dissipation. The internal and external heat dissipation systems of the K19 allow the machine to consistently output high power without the user worrying about heat issues.

Silicone heat dissipation thermal contact area: 4620mm²

Honeycomb mesh convection heat dissipation area: 31717mm²

Six operating modes

USB decoding: the XMOS 16-core XU316 enables decoding up to 768kHz/32bit, DSD512, MQA full decoding

Coaxial input: capable of receiving coaxial input, for use as a coaxial decoder

Optical input: capable of receiving optical input, for use as an optical decoder

HDMI input: supports audio input from devices such as video game consoles/Blu-ray players/set-top boxes

HDMI ARC: supports audio return from TVs and other devices

Bluetooth input: the Qualcomm QCC5125 enables support for aptX HD/aptX Adaptive/LDAC codecs

Four analog output + two digital output modes

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

PO: audio output only from the front headphone jack (volume adjustable)

PRE OUT: audio output only from the rear connectors (volume adjustable)

LO: audio output only from the rear connectors (fixed level output)

COAXIAL: standard RCA connectors, digital output

OPTICAL: standard toslink connectors, digital output

Pure versatility, comprehensively excellent experience

Use both vertically and horizontally

Allows it to save space and effectively dissipate heat; when used vertically, it also can be used as a unique headphone stand for even more convenience

1.3-inch full color display

Allows you to easily understand its current status, and makes changing settings easier

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

Allows you to conveniently switch between operating modes, select EQ, adjust volume, and other functions from a distance

Supports FIIO Control app

Allows you to conveniently adjust various functions

Dual indicator lights on the volume knob

Supports sample rate indication and various lighting effects*

*Various light effects require a software update to the control app

Full range of connectors and operation buttons

 

Specifications
  • 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 *3
  • Bluetooth chip: QCC5125, Bluetooth 5.1
  • Bluetooth codec support: SBC/AAC/aptX/aptX LL/aptX HD/atpX Adaptive/LDAC
  • Display: 1.30-inch fully laminated 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 5: L+R≥1250mW+1250mW (32Ω single-ended, THD+N＜1%, Super high gain mode)
  • Power output 6: L+R≥5000mW+5000mW (32Ω balanced, THD+N＜1%, Super high gain mode)
  • Signal-to-noise ratio: ≥128dB (A-weighted)
  • Noise floor 1: LO＜1.6μV (A-weighted); PO＜3.5μV (A-weighted)
  • Noise floor 2: BAL LO＜2μV (A-weighted); BAL＜6μV (A-weighted)
  • Output impedance: ＜0.6Ω (32Ω)
  • THD+N: ＜0.0002%(1kHz/-6dB@32Ω)
  • Weight: About 1800g
  • Dimensions: About 250x225x36.7mm
  • Intelligent protection systems: Overheating, overload, DC protection, intelligent power-saving
  • 31-band high-precision lossless PEQ
  • ESS 8 channel flagship DAC ES9039SPRO*2
  • 8000mW+8000mW powerful output
  • 8 channel THX AAA 788+
  • High performance ultra-low phase noise femtosecond crystal oscillator
  • Global clock management
  • Fully balanced design
  • Ultra-thin die-cast unibody shock-proof construction
  • Supports decoding via HDMI/ARC
What's in the box
  • Quick start guide
  • Warranty card, AC power cord
  • Type-C to USB-A adapter
  • 6.35mm adapted
  •  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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 76894138394

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PS
Cuba, US
★★★★★ 3
Good place to start
Format: Paperback
I am an independent college adviser based in California and I recommend this book to my clients but only at the very beginning of the process (mostly to the parents of rising high school freshmen and sophomores). This book is a good place to start especially for many of the foreign educated or immigrant families, who are new to the US College Admission process. The parents do tell us that the book loses its effectiveness once they gain knowledge of the process and/or they begin working one-on-one with an independent and/or become more conscious about meeting the high school counselors early in the process. I personally like the fact that once this book is overviewed by the families, we can spend more time addressing specific concerns and giving more customized advice. As a result we only need quarterly meetings and these meetings are extremely targeted. The problem with this book though is it reads like a huge information session by colleges. Those of you who have attended some of the information sessions will know what I mean. The insights provided by the deans and admission officers of various colleges sound somewhat like a "sales pitch" at times and at other times are misleading. I also recommend my students to keep their knowledge up to date by referring to various free resources such as Nancy Griesemer's educational articles in Washington Examiner Online, or the Choice Blog. I spend considerable time volunteering my services at a high school in a mixed/low income neighborhoods; I wish the price had been more reasonable considering that this is a basic book. Lastly as members of NACAC (National Association of College Admission Counseling), all of us in the admissions field (College Admission Officers, High School Counselors, and Independent Counselors) subscribe to certain codes of ethics and one of the Statements of Good Practice says this about Fairness and Equity: We believe our members have a responsibility to treat one another and students in a fundamentally fair and equitable manner. Unfortunately, Ms. Mamlet and Ms. VanDeVelde do a great disservice by being disrespectful to a large community of Independent College Advisers, many of whom are needed when the high school counselors are juggling with case loads of 200-300 students each and are unable to keep up with the changing scene of college admissions (either due to the lack of funding or time). Gone are the days when people went to some "quack-independents" who promised admissions to Ivy Leagues--sure there are some of those but if families are careful in their research, they will soon find out that these Independents do not belong to any authentic professional organizations such as the NACAC, HECA or IECA. Most students who come to the authentic professionals are motivated to find their right fit college, explore their own strengths and weaknesses and find the best match for their talents, interests and financial situation. Most independents offer services that are reasonably priced. If Ms. Mamlet and VanDeVelde show more commitment to researching folks on the other side of the spectrum, I am sure that their book will be more enlightening.
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Reviewed in the United States on August 18, 2013
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AGB
Cuba, US
★★★★★ 5
Best College Info Book Ever!
Format: Paperback
I have read dozens of college-related books in the past 4 years, and this one ranks the highest by far. Written by industry experts and the authors got a lot of top talent to contribute. Full of real-life advice and useful information that is actually true (I fact-checked this against some other info). I read parts of it out loud to my junior on the plane en route to a college tour, and she actually listened! Humor is always appreciated, and these authors use it without going overboard. Great information, well-presented. A must-read!
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Reviewed in the United States on February 22, 2013
B
Verified Purchase
B. Jones
Draper, US
★★★★★ 5
A Must-Read for College (and Even High School) Students
Format: Paperback
First of all, this book really cuts to the point. If you are skilled with skim-reading, you can get this book in about 2 1/2 to 3 hours. Second, while these strategies are currently untested by me, they seem really practical. Rather than saying "study" or "write paper" or "take test", Dr. Newport lays down specific, useable guidelines for all areas that are intended to cut down on time spent on schoolwork. This helps you with more time to have fun, do extracurricular activities, or work 60 hours a week (like I will soon be doing). Third, this is THE anti-procrastination book, although I don't get the concept of starting term papers a month before they're due as the examples did. The whole concept behind this book is making sure you've got as little work going as possible that takes as little time as possible. Doing things upfront will ease your load later when the assignments and papers start rolling in and out. There are only a couple of issues I have with the book. 1) Dr. Newport almost makes the use of personal laptops compulsory in college. I get why it would be such an asset, but for some of us it is more of a liability than an asset. I really believe one can get through college without a laptop at a much smaller personal expense than the costs of buying a laptop/accessories, printer, ink, etc. If you already bought one, that's one thing, but if you haven't, why do you need one? Just use pen/paper and the computer labs' computers and printers. With the printers, odds are you're paying the same amount for 1000 pages that you would for toner (paper is free with the way they price it), and you don't have to drop the cost upfront, but pay as you need the printer. Financially, you're better off skipping the personal printer. 2) He didn't discuss what format to purchase textbooks, but considering he was so insistent on portability, I would probably haphazard a guess that a hard copy is the only way to go. Sure it may be expensive, but what if your Kindle or iPad gets stolen? Overall, highly, highly recommended. Get this for your child as an early (or very early) graduation present. Teaching them these things will save them a lot of headaches later on. One last note: This book is not for the lazy. If you aren't willing to do the work, don't expect this book to help. However, if you're someone like me who's sick of lazy and wants to convert, this book IS for you!
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Reviewed in the United States on December 18, 2012
R
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Ricky Luis
Lowell, US
★★★★★ 5
One more crappy college study guide
Format: Paperback
When I was taking 4 classes at my local community college, I tried to follow the part of the book that said just to learn math by examples. I ended having to drop the class because at first I was actually ahead of the professor. Then I tried this stupid book's technique of learning by examples and I ended up falling behind. The same can be said of "What smart students know" it's actually a good technique (smart students), but you end up spending hours thinking up questions. Questions can be a part of the process, but it can't be the whole process. I just bought an online course than is way better than both of these combined. It's so good. The point I'm at in the course you can memorize up to 50 items in reverse and forward. You can also tell which place in the list. An example could be The order of my hallway: Dog = front door Cat = wall Duck = light switch Printer = holder Hitler = chair MAO = rug Goku = ceiling light Kurrin = mirror Gohan = heater Frieza = painting You would then connect / visualize each word / picture with a part of your house. The rule is to visualize each for only 6 seconds while recalling can only take 6 seconds. If you miss one you have to do the six second process again until you make no mistakes. P.S. I'm not telling anyone the name of the course or where to buy it. I want to be ahead of all other students. Edit: I'm back in college taking two college level courses. While I don't agree with everything in this book (I have to re-read it) I agree with 80-85% of the methods used in this book that I remember. Such as not doing the reading he was right. I haven't done the reading in my psychology 101 class and have only focused on taking / memorizing / learning the notes and while I haven't gotten a grade yet, I actually feel I'm learning enough and today in class I note notes from a documentary we watched. The professor said to do the reading for chapter 2 of the textbook. I'm not even going to do it. I'm going to just take notes in class then go over the reading. I did this for my 1st set of notes and I didn't understand something in the lecture notes. I ended up re-reading that / part / example [it was on the scientific method]. I remember from taking my developmental math class that the professor was actually doing examples (even though I couldn't figure out from what part of the book they were from and / or I couldn't write every example like he said) If I had just asked questions and either watched videos on Youtube I would've probably remembered the material from that class. I'll do another edit once I'm done with classes. I'm also going to write / provide a list of books that I think are good for learning and have good advice for college. Edit: I ended up trying to do the advice from this book and if I didn't look up the answers for the test for my psychology class I wouldn't be in college today. I'm not saying that all of this book is bad but I went from thinking that 85% of it is good to now thinking that 50% of this book is good. The other half is crap. Such as the technique for Q/E/C he doesn't give any examples or enough examples. The other advice like making your own problem sets I wouldn't have thought of. Even though this is an all right technique your wasting time because you can just practice doing other peoples problems (like those online or from a professor) or do Bullet point concept from another book I read (I'm going to provide a list once I'm done with this review). The one technique that is very good is the lecture technique he mentions in the book. For some reason, this technique helps with putting material into memory. His section on writing papers is also very good. His explanation on how to prepare for and take exams is also good. Also, he should have made the book more visual and put actual writing from actual students other than that it's an all right book. Here's the list of books I've read (so far) that will most likely get you A's College Rules https://www.amazon.com/College-Rules-4th-Survive-Succeed/dp/1607748525/ref=sr_1_1?s=books&ie=UTF8&qid=1530133408&sr=1-1&keywords=college+rules Guaranteed 4.0 https://www.amazon.com/Guaranteed-Follow-3-Step-Plan-Dont/dp/0974264806/ref=sr_1_1?s=books&ie=UTF8&qid=1530134451&sr=1-1&keywords=guranteed+4.0 How to study in college https://www.amazon.com/How-Study-College-Walter-Pauk/dp/1133960782/ref=sr_1_4?s=books&ie=UTF8&qid=1530134633&sr=1-4&keywords=how+to+study+in+college The only book I've read from cover to cover is GT 4.0 it's probably the best in my opinion because the system in this book will get you A's. The only reason last semester I didn't get A's was because I didn't follow the system to the t. If you follow the GT 4.0 system to a t and don't get all A's she'll give you $100. Hope this helps. Edit 2020: From what I remember reading this book, this applies to college level courses and even at the same time I tried using his question / evidence technique while taking a psy101 class and couldn't do it. Also he's right to a very large degree about living off of lecture notes. Living off of the lecture notes IMHO can only be done if it's a science science class or a college level math class. I'm currently taking a pre-req class and the professor explains everything. Along with the Guaranteed 4.0 technique this is a pretty decent book.
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Reviewed in the United States on January 24, 2012
S
Verified Purchase
S. Bandy
Whiting, US
★★★★★ 4
Wish I had read this sooner
Format: Paperback
This book is not that revolutionary, but very helpful. It essentially tackles three main problem areas for college students: 1) time management skills, 2) studying and exam prep, and 3) essay writing. Some of these are common sense things that many people resist implementing. If you are struggling with college, or are a high school senior unsure of what to expect in college, this book is very helpful. The true value in this book, for me at least, was in providing the satisfaction that these strategies worked. I would often start out a semester by doing the things listed in the book. I would manage my time, study effectively for exams, thoughtfully plan out papers and assignments. Halfway through the semester, I always had straight As. But as finals crept up, I would panic. Since every other student spent hours in the library studying, I abandoned the effective strategies to follow suit. As a result, my final exam grades were inconsistent and my final papers were always rushed. This book gave me the satisfaction of knowing that I can trust these time saving strategies. You do not need to spend hours and hours on projects to get a good grade. It's okay to not spend hours in the library studying for a final. Trust that these strategies work, and enjoy your stress-free semester. But, the book does have faults. While this book provides very useful information, I feel it misses two aspects of the college experience that can have a large impact on your grade: presentations and group projects. (Also the dreaded group presentation). While you can implement some of these strategies in these situations, it would be nice to know how top students manage working in group project settings, especially those that require research. I can't tell you how many times I've been in a group project where half the group doesn't show up to meetings, members refuse to do their work, or people drop the class halfway through the project. I still haven't figured out an adequate way to deal with these situations besides just doing the work myself at the last minute. Bottom line, this book is well worth the money. Whether you are a college senior or a high school senior and everything in between, this book will help you as long as you faithfully implement the strategies. But do search out other resources for help with managing group projects.
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Reviewed in the United States on December 12, 2012

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