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FiiO KA2 USB Amp/DAC with 4.4mm Balanced output (Open Box)

Product SKU: KA2 LT (OB)

 

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$69.99 Retail
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Product Details

↓ Details provided by FiiO

KA2 Compact DAC and Amplifier

Dual CS43131 DACs | 4.4mm balanced out | Supports up to DSD256 and 32bit/384kHz PCM Hi-Res audio
Supports FiiO Control APP | 5 digital filters to choose | Compatible with Android/iOS/Windows/MacOS
Ring-shaped RGB indicator | Industrial design | Metal construction | Classic black and gold color | Hi-Res Audio certified

Unleash double the performance CS43131*2

The KA2 is equipped with two CS43131 DACs, each capable of high performance and accurately reproducing high-resolution audio.

4 sounds awesome, 4.4mm balanced out

Get the KA2’s full potential by utilizing the 4.4mm balanced output – with max output power of 153mW@32Ω, 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.

Listen to every last detail
Supports DSD256 and 32bit/384kHz PCM high-res audio

Fully unleash the energy in your music with support up to DSD256 and 32bit/384kHz PCM high-resolution audio.

Extremely convenient
Supports FiiO Control APP

Easily link the KA2 to the FiiO Control app, which allows you to easily adjust settings from the comfort of your smartphone.

Choose as you like, 5 selectable digital filters

The KA2 offers 5 different digital filters to select from – another way of allowing you to select how you want your music to sound.

High-quality audio everywhere
Compatible with Android/iOS/Windows/MacOS

The KA2 is compatible with Android/iOS/Windows/MacOS, covering most of the platforms commonly used. Get high-quality natural sound anytime, anywhere.

Classic design Ring-shaped RGB indicator

The ring-shaped RGB status indicator as featured in the KA lineup lets you instantly know what kind of audio format you’re playing with a single glance.

Blue: 48kHz or below sample rate
Yellow: Above 48kHz sample rate
Green: DSD

Industrial design All-metal construction

The KA2 follows the industrial design language as with the other members of the KA family – featuring a luxurious feeling, all-metal construction in a striking black and gold color scheme.

Hi-Res Audio certified

The KA2 has been certified to be Hi-Res Audio capable, as according to the standards developed by the Japan Audio Association (JAS) and the Consumer Electronics Association (CEA). With the KA2, you are sure to get accurate, high-fidelity audio that is completely faithful to the original performance.

Specifications

General specifications
Name/Model KA2 color Classic Black
hardware DAC: CS43131*2 FiiO Control support
weight About 12.3g size

fuselage: about 40mm x 15mm x 12mm.

Line length: 70mm

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
power supply parameters
power supply battery capacity
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)

Comparison

Model

KA1

KA2

KA3

color

Classic Black/Dark Night Green

Classic Black

Classic Black

DAC

ES9281AC PRO

CT7601+CS43131*2

CT7601 + ES9038Q2M + RT6863D * 2

FiiO Control

is not supported.

support

support

weight

About 10g

About 12.3g

Approximately 17.5g

size

fuselage: about 40mm x 15mm x 8mm

Line length: 70mm

fuselage: about 40mm x 15mm x 12mm.

Line length: 70mm

About 56.3mm x 20.2mm x 12mm

Headset Input Interface

Type-C Cable or Lightning

Type-C Cable or Lightning

Type-C lines

Headset output interface

3.5mm single end

4.4mm balance

3.5mm Single End (PO)+4.4mm Balance (BAL)

Sample Rate Indicator

blue: 48kHz and below

yellow: above 48kHz

Green: DSD

magenta: MQA

blue: 48kHz and below

yellow: above 48kHz

Green: DSD

blue: 48kHz and below

yellow: above 48kHz

Green: DSD

Decoding specifications

PCM: 384KHz/32bit

DSD: Dop 64/128

Native 64/128/256

MQA:16x

PCM: 384KHz/32bit

DSD: Dop 64/128/256

Native 64/128/256

PCM: 768KHz/32bit

DSD: Dop 64/128/256

Native 64/128/256/512

output amplitude

PO:1.2V(32Ω/THD+N<1%)

BAL:1.2V(32Ω/THD+N<1%)

PO: 2V(32Ω/THD+N<1%)

BAL:2.7V(32Ω/THD+N<1%)

output power

45mW@32Ω(PO)

153mW@32Ω(PO)

130mW@32Ω(PO)

235mW@32Ω(BAL)

distortion + bottom noise

<0.0005%(32 Ω A)

<0.00036%(32 Ω)

<0.00024%(32 Ω A)

<0.0008%(PO 32Ω)

<0.0010% (BAL 32Ω)

signal-to-noise ratio

≥ 114dB(32 Ω A)

≥ 125dB(32 Ω A)

≥ 131dB(600 Ω A)

≥ 122dB (PO32 Ω A)

≥ 119dB(BAL 32 Ω A)

power consumption

50mA (standby)

60mA( 40mV)

65mA (standby)

70mA( 40mV)

120mA (standby)

130mA(PO 40mV)

130mA(BAL 40mV)

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