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Product Details
(Specifications and appearance of this product are subject to change without notice)
↓ 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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