FiiO K3 V2 Desktop DAC and Headphone Amplifier (Black)

BH #FIK3V2 • MFR #K3V2
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FiiO K3 V2 Desktop DAC and Headphone Amplifier (Black)
Key Features
  • For Computers, iOS Devices, and More
  • 3.5mm and 2.5mm Headphone Outputs + Line
  • Dual USB Audio Modes
  • Separate DAC and Amp Functions
Audiophiles and music enthusiasts looking for a high-quality DAC/headphone amp will be thrilled with the black FiiO K3 V2 is a compact desktop USB-C DAC and headphone amplifier designed for use with any compatible USB device.
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FiiO K3 V2 Overview

Audiophiles and music enthusiasts looking for a high-quality DAC/headphone amp will be thrilled with the black FiiO K3 V2 is a compact desktop USB-C DAC and headphone amplifier designed for use with any compatible USB device.

Updates to the K3 V2 include an upgraded ESS DAC (ES9038Q2M), which provides an increased signal-to-noise ratio of 14 dB and reduced distortion by 13 dB. The circuit design has been optimized for a low noise floor and clean sound. FiiO also improved various performance indicators and overall sound quality, allowing you to immerse yourself in your music. Other notable features include an updated USB Type-C interface for a more reliable and stable connection. The unit now employs overvoltage protection and a double-filter circuit to ensure power supply stability. Digital and analog audio circuits each have their own power supply, which greatly reduces crosstalk.

The K3 V2 is equipped with an XMOS USB receiver chip, allowing the device to decode files up to 384 kHz / 32-bit PCM, as well as native DSD256 files. It supports USB Audio Class 1.0 (up to 96 kHz / 24-bit) and 2.0 (up to 384 kHz / 32-bit and DSD256). Designed to provide a hi-fi audio experience, the K3 V2 accurately presents your audio as it was intended by its creators.

For analog outputs, a 3.5mm single-ended connector is provided for use with your regular headphones, while a 2.5mm connector is designed for balanced headphones. Additionally, the K3 V2 includes a 3.5mm line output for connecting to monitors or home theater setups. Should your speaker system, amplifier, or external decoder require a digital connection, the K3 V2 is also equipped with RCA coaxial and optical connectors. Other notable features include a bass-boost switch, a high-/low-gain level switch, and an ADC volume control, which provides smooth level adjustments. The FiiO K3 V2 includes a set of extra foot pads and a USB cable.

  • Compact desktop enclosure
  • Two USB audio modes (USB Audio Class 1 and Audio Class 2)
  • PCM 384 kHz / DSD256 decoding
  • Dual headphone outputs (3.5mm unbalanced and 2.5mm balanced) + 3.5mm line output
  • Dual digital outputs with RCA coaxial and optical connectors
  • ADC volume
  • Bass boost
  • High-/low-gain switch
  • Dual crystal oscillators
  • CNC / anodized / sandblasted aluminum
  • Balance boost output power
  • XMOS USB receiver chip
  • ESS ES9038Q2M with an increased SNR and lower distortion
  • Low noise opamps (OPAP26 and OPA1612)
  • Over-voltage power protection and double-filter circuits for power stability
  • Separate power supplies for digital and analog circuits for reduced crosstalk
  • Includes USB cable and extra foot pads

FiiO K3 V2 Specs

Key Specs
Channels of I/O
2 Inputs / 2 Outputs at 384 kHz
Maximum Sampling Rate
384 kHz / 32-Bit (PCM)
Number of Microphone Inputs
No
Analog Audio I/O
1x 1/8" / 3.5 mm TRS Line Output
1x 1/8" / 3.5 mm TRS Headphone Output
1x 2.5 mm TRRS Line Output
Digital Audio I/O
RCA Coaxial S/PDIF Output
TOSLINK Optical S/PDIF Output
Host Connection
USB-C (Class-Compliant)
USB-C
OS Compatibility
Windows
macOS
Power Requirements
DC Input
General
Display
No
Channels of I/O
2 Inputs / 2 Outputs at 384 kHz
Built-In DSP
No
Maximum Sampling Rate
384 kHz / 32-Bit (PCM)
Number of Microphone Inputs
No
Built-In Microphone
No
Signal Processing
Pad
No
Connectivity
Analog Audio I/O
1x 1/8" / 3.5 mm TRS Unbalanced Line Output
1x 1/8" / 3.5 mm TRS Unbalanced Headphone Output
1x 2.5 mm TRRS Balanced Line Output
Phantom Power
No
Digital Audio I/O
1x RCA Coaxial S/PDIF Output
1x TOSLINK Optical S/PDIF Output
Host Connection / USB
USB-C (Class-Compliant)
USB-C
Host Connection Protocol
USB 2.0
USB 1.0
USB (Non-Host)
No
Sync I/O
No
Network I/O
No
MIDI I/O
No
Expansion Slots
No
Wireless
No
Performance
Frequency Response
20 Hz to 20 kHz -3 dB
Maximum Output Level
7.9 V p-p
Headphone Output Power
1/8" / 3.5 mm:
220 mW into 16 Ohms (1% THD)
1/8" / 3.5 mm:
120 mW into 32 Ohms (1% THD)
1/8" / 3.5 mm:
13 mW into 300 Ohms (1% THD)
2.5 mm:
344 mW into 16 Ohms (1% THD)
2.5 mm:
220 mW into 32 Ohms (1% THD)
2.5 mm:
26 mW into 300 Ohms (1 kHz)
Impedance
1/8" / 3.5 mm Headphone :
< 1 Ohm
2.5 mm Balanced Headphone Outputs:
< 2 Ohms
SNR
2.5 mm Balanced Headphone Outputs:
≥ 119 dB
1/8" / 3.5 mm Headphone Outputs:
> 121 dB
THD+N
2.5 mm Balanced Headphone:
≤ 0.0014% (A-Weighted, 1 kHz)
1/8" / 3.5 mm Headphone:
< 0.0012%
Digital Audio
Sample Rates
Internal:
384 kHz
Coaxial S/PDIF:
192 kHz
Optical S/PDIF Output:
Up to 96 kHz
Sample Rate Conversion
No
Bit Depths
32-Bit
Audio Storage & Playback
Media/Memory Card Slot
No
Compatibility
OS Compatibility
Windows / macOS
OS Compatibility
Windows
macOS
Mobile App Compatible
No
Mobile Device Compatibility
No
Power
Power Requirements
DC Input
AC/DC Power Adapter
5 VDC at 500 mA (Not Included)
Physical
Dimensions
2.8 x 2.3 x 0.9" / 7 x 5.8 x 2.2 cm
Weight
2.9 oz / 82.0 g
Packaging Info
Package Weight
0.375 lb
Box Dimensions (LxWxH)
5.8 x 4.1 x 1.2"

FiiO K3 V2 Reviews

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