FIIO KA2 Portable DAC Headphone Amplifier

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Description

FIIO KA2 Portable DAC Headphone Amplifier

Unleash double the performance, 2*CS43131

The KA2 is equipped with two CS43131 DAC chips, each capable of high performance and accurately reproducing high-resolution audio. Supports up to PCM 32bit 384kHz and DSD256.

4.4mm balanced out

Get the KA2’s full potential by utilizing the 4.4 mm balanced output - with max output power of 153mW@32Ohm, a high signal-to-noise ratio of 131dB, and a THD+N of only 0.0005%, with a pitch black background. All of this ensures clean, excellent sound.

NOTE: The device only has a balanced output and it is necessary to have headphones or earphones with a 4.4 mm balanced connector

FiiO Control App

Easily link the KA2 to the FiiO Controll App, which allows you to easily access settings and parameters from the comfort of your smartphone.

5 selectable digital filters

The KA2 offers 5 different digital filters to select from. This Allows you to select your own way to listen your music.

High-quality audio, everywhere

The KA2 is compatible with Android/iOS/Windows/MacOS, covering most of the platforms commonly used.

Ring-shaped RGB LED indicator

The circular RGB LED indicator featured in the KA2, lets you instantly know what kind of audio format you are playing.

- Blue: 48kHz or below sample rate

- Yellow: above 48kHz sample rate

- Green: DSD

In the package:

- FiiO KA2

- Female USB-C to male USB-A

General specifications
Name/Model	KA2	color	Classic Black
hardware	DAC: CS43131*2

Audio input interface	Type-C Cable or Lightning	Headset output interface	4.4mm socket
firmware upgrade	The system firmware can be upgraded through USB	sample rate indication	blue: below 48kHz yellow: above 48kHz Green: DSD
channel balance	<0.02dB(32Ω/THD+N<1%)	impedance adaptation	16 to 300 Ω
The highest supported sampling rate	384KHz/32bit	Support DSD	DSD64/128/256

Audio parameters
Headset Output Part Performance Parameters (4.4mm)
output power	112mW (16Ω,THD+N<1%)	output amplitude	2.2V(32Ω/THD+N<1%)
	153mW (32Ω,THD+N<1%)	channel separation	≥ 91dB(1Khz,32 Ω load)
	54mW (300Ω,THD+N<1%)
	27mW(600Ω,THD+N<1%)	output impedance	<0.5 Ω (load 32 Ω)
frequency response	20Hz to 20KHz, the curve amplitude changes by 0.03dB.	signal-to-noise ratio	≥ 125dB(32 Ω A)
	20Hz to 50KHz, the curve amplitude changes by 0.05dB.		≥ 131.2dB (600 Ω A)
bottom noise	<1.1uV(32 Ω-A)	distortion plus bottom noise	<0.00036%(32 Ω)
			<0.00023%(600 Ω)
	<1.05uV(600Ω-A)		<0.00024%(32 Ω A)
			<0.00014%(600 Ω A)

Designer

FiiO logo

About FiiO Electronics Technology Co., Ltd.

01 Brand Introduction - HiFi+Fashion

FiiO Electronics Technology Co., Ltd. was established in 2007. It is a high-tech enterprise that combines research, development, production and sales, and its sales are mainly based on its own FiiO brand as opposed to OEM/ODM. It focuses on digital audio, with current mainstay products being portable headphone amplifiers, DAC / amps and portable digital audio players.

FiiO: It is composed of Fi (Fidelity) from HiFi and iO (represents number 1 and 0) which indicates the sincerer feeling and more convenient life the digital tech has brought to us.

飞傲: The Chinese transliteration of FiiO, as well as representing youthful vigor and the active & innovative spirit of the company.

Audio products are meant to fulfill the spiritual pleasure of users.

FiiO provides products and service related to music.
We also hope to bring happiness to our users with the provided products and service, which is also the key value of FiiO.

Customer Service

Good after-sales service, more reliable
Great user experience, more pleasure
Variety of activities, more involved

About products

Affordable: FiiO products are well-known for its feature of high cost-performance. Lowering the entry level to make more customers can afford.
Easy to use: FiiO pays great attention to the user experience. We are not only provide products with high quality, but also easy to use and with long lasting durability.
More accessories bring more fun: Enable to play in a variety way and use under more possible environments.
Updates available: Equipped with a variety of ports, it makes the music players can still connect to external amp/DAC for upgraded enjoyment.
Endless transformability available: With replaceable amp module and expandable storage, the X7 can bring more playability.

02 Company Profile

Research & Development Team

Twenty years of R&D experience in audio products
Former core R&D team for audio products from OPPO
A team of 20 professional R&D engineers in software, hardware, industrial design, structure and electro-acoustic.

Research & Development Investment

FiiO keeps bringing in advanced equipments and high-tech talents so as to ensure the stable growth and long term competitive edge. Up till now, the team size has expanded three times than that of 2007 when we established.

Team Composition

The R&D team is made up of development dep, engineering dep and QC dep, with 60+engineers in total.

Authorized certifications

FC, CE, KC, CCC and ISO9001:2008 ensure the safety and quality of the products.

Production management

FiiO has strict requirements to production with almost “zero tolerance” even to small problems, which is strictly in compliance with the International Quality Management System ISO9001.

QC Equipment

a. AP audio analyzer (valued at 200,000RMB).
b. Life-span test platform against high & low temperature, swing and plug & unplug trial.
Aging test carriage towards mass production.
Aging test machine under high & low temperature.

Customer oriented

Driven by customers’ needs, we innovate constantly and response promptly to the market changes. We develop new products based on customers’ needs and compete for more market shares.

Company culture - Our Vision

Present the world a better “Made in China”.

Brand Spirit

Innovation

the earliest company that designed the minimum volume headphone amplifier. First dockable amp & DAC product. First amp specially designed for iPod/iPhone. First amp with adjustable power supply and power supplied by mobile phone battery. First multifunctional headphone amp & DAC for Android smarphone. First Hi-Res music player at a price lower than 1000RMB supporting 192K music. First Android-based Hi-res music player.

Quality

Repair Rate < 1%. Sound Quality Control system. Original components imported from TI, Wolfson, Maxim. Company-wide quality control. +20 quality engineers and inspectors. Complete testing facilities.

Service

CEO at the frontline of customer service. 100% response to enquiries. The most popular headphone amplifier brand on Head-Fi. First class website and contents in the audio industry. Interaction with and support to customers on Facebook and Microblog (twitter-like social website).

Brand Mission

FiiO designs, produces and sells high-quality products at favorable prices to those who love music and style.