Headphone amplifier with DAC
FiiO K5

Product code: 101155
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AED 449
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Description

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Description

The Fiio K5 is a docking station/headphone amplifier/DAC. Exclusively for FiiO players.

FiiO X series Hi-Fi players - X1, X3 II, X5 II, X5 III, X7, as well as the E17K amplifier/DAC, have an 11-pin Micro-USB port, which, when paired with the K5, allows for not only charging the batteries but also amplification and digital-to-analog conversion of the audio signal.

Easy to drive full-size headphones.

The K5 uses the TPA6120A2 amplifier module from TI and an exclusive technology to lower the output impedance to a negligible level (<1 ohm). The power increases to 1.5W for 32-ohm headphones. By utilizing an additional current amplification stage and providing efficient internal power, the K5 delivers high output current. The device has three gain modes for headphones with different sensitivities.

Exquisite design and excellent assembly.

Compared to the E series, the K5 has made a breakthrough in design and assembly. During its design, a smaller tolerance was implemented for all joints and connections of the housing elements, better surface treatment was used, and an independent front panel was incorporated.

Synchronized power on/off for maximum convenience.

When turning on/off the K5, the connected X1, X3 II, X5 II, X5 III, X7, or E17K will synchronize and turn on/off simultaneously. This function is very convenient for users and demonstrates full integration of the connected devices.

Sound characteristics on the line output:

  • K5 -> X1: Output signal level: 1.37V; THD+N: 0.008%
  • K5 -> X3 II: Output signal level: 1.36V; THD+N: 0.008%
  • K5 -> X5 II/X5 III: Output signal level: 1.05V; THD+N: 0.004%
  • K5 -> X7: Output signal level: 1.90V; THD+N: 0.004%
  • K5 -> E17K: Output signal level: 1.50V; THD+N: 0.009%

Sound characteristics on the balanced output:

  • K5 -> X5 II/X5 III: Output signal level: 1.05V; THD+N: 0.004%
  • K5 -> X7: Output signal level: 1.90V; THD+N: 0.004%

Technical specifications of the Fiio K5:

  • Dimensions: 120 x 130 x 55 mm
  • Inputs: Line (2x RCA), MicroUSB, USB
  • Outputs: Headphone (6.3mm), Line (2x RCA), Balanced (2x 3.5mm)
  • Volume control: Analog potentiometer with power switch
  • Gain: 0 dB (Low), 6 dB (Mid), 12 dB (High)
  • Headphone impedance range: 16 - 300 Ohm
  • Output power: >1700 mW (16 Ohm, THD+N<1%), >1500 mW (32 Ohm, THD+N<1%), >150 mW (300 Ohm, THD+N<1%)
  • Signal-to-noise ratio: ≥110 dB (weighted) [AUX IN]
  • Frequency range: 10 - 90,000 Hz
  • Output impedance: <1 Ohm
  • Crosstalk: >70 dB (1 kHz)
  • THD+N: <0.002% (1 kHz, 32 Ohm)
  • Max. output voltage: >20 Vp-p
  • Max. output current: 221.8 mA
  • Power source: Electric grid
  • Power parameters: DC 15V 1.5A
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Characteristics

Characteristics

Brand
Power output

This is the useful power developed by the amplifier in the load resistance. Amplifiers are usually characterized by the highest power that can be obtained at the output, provided that the distortion does not exceed the specified permissible value. This power is called the output power of the amplifier.

Glossary of terms
1.7
The lowest frequency, Hz
20
The highest frequency, kHz

The upper limit of the frequencies reproduced by the device. The human ear hears the standard frequency range: 20 Hz – 20000 Hz.

Glossary of terms
20
Signal-to-noise ratio, dB

The higher signal-to-noise ratio, the clearer sound and the bigger the dynamic range provided by the system

Glossary of terms
110
Powered by USB
yes
Output connectors
6.35mm jack, RCA, 3.5mm jack
Circuit design
discrete

The circuit with transistors used.

Словарь терминов
Input connectors
RCA, USB
Internal DAC
yes
Color
Form factor
stationary

For use on a table or in a rack.

Словарь терминов
Material
metal
Playback via USB
yes

Playing music files via USB

Словарь терминов
Headphone output
6.35mm jack, 3.5mm jack
Depth, mm
130
Height, mm
55
Width, mm
120
Weight, g
450
Service life, months
24
Warranty, months
12
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