FiiO K5 Pro ESS Desktop DAC & Headphone Amplifier

Description:

Key Features

• For Computers, Phones, Music Players
• High-Resolution ES9038Q2M ESS DAC
• XMOS XUF208 USB Decoding Chip
• Supports 768 kHz / 32-Bit, DSD512
• Coaxial/Optical/RCA Line Inputs
• 1.5W Headphone Amplifier
• RCA Line Outputs
• Low-, Medium-, High-Gain Levels
• RGB Light-Ring Indicator
• External Power Supply with AC Adapter

Next-generation DAC for unrivalled internals

The K5 Pro ESS employs the flagship portable ESS DAC, the ES9038Q2M with more outstanding performance and richer audio details. Compared to the last gen, the distortion has reduced by 50%, the crosstalk for LO has increased by 6dB with greater channel separation, and the dynamic range has increased by 3dB.

768k and native DSD512 support

The XMOS XUF208 USB decoding chip equipped with the clock matching management system, allows decoding up to a sample rate of 768kHz and native DSD512.

Both coaxial/digital inputs present

No matter what audio equipment you use, digital audio inherently has advantages in integrity and fidelity of signals transmitted. The K5 Pro ESS allows you to take advantage of digital audio with optical and coaxial inputs supporting up to 96kHz inputs, convenient for connecting various music players and digital interfaces.

Specially-designed audio architecture or true high-fidelity sound

When it comes to amplification, the K5 Pro ESS is no slouch. The K5 Pro ESS has generous space to fit and package the necessary components for exceptional analog amplification and packs a four-level audio circuit capable of providing extraordinary audio fidelity in its class: second-order LPF + analog volume adjustment + voltage amplification + current drive. Each part of the amplification circuit works perfectly together in harmony for excellent dynamic range and high resolution of sound.

Safe, secure, and robust external power supply

The K5 Pro ESS uses a DC 15V power supply designed to specifically minimize noise. The incoming DC power is filtered with a secondary power supply, which then independently supplies power to the amplification part of the audio circuit and the rest of the circuit. This effectively suppresses power supply ripple and minimizes power supply crosstalk between the two major sections of the circuit, for a more stable and less noisy power that is crucial for outstanding sound for such a precisely-designed high performance audio architecture.

Accurate volume adjustment, impeccable detail cares

Through reconstruction of the ADC curve, the K5 Pro ESS’s  volume control allows you to smoothly adjust volume at extremely fine increments without any undesirable noise nor with any channel imbalances. With the K5 Pro ESS, you can comfortably use various headphones with all kinds of sensitivities.

Powerful Headphone Amplification

The carefully tuned feed-forward amplifier circuit design increases the power output of the TPA6120 op-amp by more than 60% for a total power output of up to 1.5W under a 32-ohm load, and up to 20 V p-p at 300 ohms.
The K5 Pro ESS easily powers any low- or high-impedance headphones (16 to 300 ohms).

What’s in the box?

• FiiO K5 Pro ESS Desktop USB DAC and Headphone Amplifier (Black)
• USB Cable
• Power Adapter
• Power Cable
• 1/4″ Headphone Adapter
• 4 x Rubber Feet