One - Open Box
One - Open Box
One - Open Box
One - Open Box
One - Open Box
One - Open Box
One - Open Box
One - Open Box
One - Open Box
One - Open Box
One - Open Box
One - Open Box

iFi Audio

One - Open Box

Sale price$ 1,434.00 Regular price$ 2,049.00
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ifi one: the new sound amplifier with IFI compressor

Larger. Bolder. Best sound.

The one you need

Isn't it sure what a DAC is, but knows that he wants a better sound quality for his music, movies, games, podcasts and pleasures of YouTube guilty?

So, the new Ifi one is for you.

All devices that act as digital sound sources use a DAC (digital to analog) . External DACs sound much better than standard DACs that are used within these devices.

Imagine the difference in quality between a standard television and an 8K Ultra HD TV, but in sound! This is the difference that makes an external DAC to your music.

The Ifi one will enhance its sound. Everything will sound more powerful, more detailed and more real.


The one you want

Small enough to fit in the palm of his hand, the beautiful and curvilinear case of the Ifi one is made of a resistant polymer full of minerals. Inside, the sophisticated DAC circuit and headphones amplifier will update basic audio technology in all types of digital devices.

Connect the IFI one through the USB type C input to your PC with Windows, Apple Mac, Smartphone or Tablet phone. It does not need a power supply, since it receives energy and audio data from the source to which it is connected.

Add headphones, autoamplified speakers or an integrated amplifier and separate passive speakers and will have what you have always wanted: a larger, bold and more detailed sound.


Work. Cool. Tap.

A simple device. Three unique modes.

  • The music mode unlocks a detailed and attractive sound of all your favorite artists. Listen while you work.
  • The film mode improves the clarity of the dialogues when it broadcasts movies and television programs that you should watch. Never miss a moment.
  • The game mode makes low -level sound effects. Always listen to your enemies to come and storms coming.

Simply use the button on the front panel to travel the three configurations. Logos illuminated at the top of the IFI one indicates the chosen mode.


One, two, high resolution

The IFI one admits different file formats: 32 -bit PCM/384 KHz, DSD256 and MQA totally native.

  • PCM: Pulse code modulation is the file format used in CD, DVD, Blu-ray and other digital audio applications. It is the next step from MP3.
  • DSD: Direct Stream Digital is a very high quality audio format, better than the quality of CD. The higher the number (sampling frequency), the better the recording: DSD64, 128, 256, 512 and 1024. Fully native means that it has not altered in any way with respect to the original recording.
  • MQA: Master Quality Authenticated is an award -winning audio technology that allows music fans to transmit the original master recording in their home, car or mobile device. With the Ifi one you can listen to MQA directly from the first moment. Simply connect to Tidal Masters and mark the option to transmit MQA.


The DAC is the key

The IFI one is based on our ten years of experience and the advanced specification of the DAC chip that it contains to unlock high -end characteristics that are rarely implemented.

Adjustable analog gain with DRE (Dynamic Range Enhancement) More technologies to minimize total harmonic distortion THD (total Harmonic distortion) and diaphonia and can access a selection of digital filters through the front panel buttons that allow you to adjust the Ifi sound one to your liking.

In summary, whether you simply use the functions or decide to play more, the IFI one will make the audio sound clearer, minimize any interference and simply provide a better entertainment experience in all areas.


Impressive analog circuit

IFI's analog circuit one is so vital for "supercarous" sound quality that it provides as its digital technology.

The headphones amplifier feeds a 3.5 mm minijack connector in the front, which incorporates IFI's S-Balanced configuration to reduce noise and diaphonia. The RCA stereo output at the rear also benefits from our ability to offer high quality audio circuits in remarkably affordable devices.

All analog outputs are plays in gold to resist corrosion and maintain conductivity over time.

Most DAC still use digital volume control; Ours is analog. Why is this special? When it reduces the volume in other DAC, it eliminates data from the song or the soundtrack. With analog volume control, it reduces volume maintaining quality.

And finally, there is PowerMatch: this guarantees that you always have the right amount of energy to control the headphones you are using.

You can count on the IFI one to provide excellent sound for everyone.


Audio hi-ores

High -resolution True Native Reproduction of all music formats, from MP3 to DSD256, PCM384 and DXD384.


Ess Sabre Dac

ESS Sabre Hyperstream Dac chips set with fluctuations removal (Jitter) in the domain of time, discrete oscillator and dynamic range of 112 dB for demanding listeners.


Jitter elimination technologies

Broad fluctuations eradication technologies (Jitter) are applied to the digital stage, including our GMT femtoprecision clock (Global Master Timing) and smart memory buffer. This represents a total systematic digital solution "ready to use" that solves the jitter once and for all.


Dre Dynamic Range Enhartement

In musical production, the dynamic range means the difference between the highest and lowest sounds. It is measured in decibels, or dB to abbreviate. On a single audio track, the dynamic range means the DB difference between the highest and lowest moment of the audio file.

You can think of the dynamic range of a system such as the space between the background noise and the cutting point. When a sound falls below the minimum noise level, it cannot notice the difference between the signal and noise of the medium system. When a sound exceeds the cut point, the upper part of its waveform will be cut abruptly, which will cause roughness and distortion.

Ifi patented technology expands the dynamic range in 6 dB or more, for a better auditory experience.



IFI's exclusive S-Balanced Circuit offers maximum performance of both balanced headphones with XLR connector and Single EDED type, especially for in-balanced headphones.


TDK capacitors

TDK C0G capacitors (class 1 ceramic) offer high stability and low losses for resonant circuit applications.

More and more approaching the theoretical ideal of the pure constant frequency, these capacitors reduce distortion induced by the condenser to extremely low levels.

They are expensive, but they are a perfect complement to our products.


Murata capacitors

Multicapa high Q and Bajo ESR condenses of Washed control. The aspect of "ESR control" of the Murata is something special. Your noise suppression capabilities are impressive.


Type of device
Specification Detail
Type of device USB DAC
Specification Detail
Entrance Type C USB port
Specification Detail
Exit 3.5 mm single minijack Ended
1 x pair rca (rear)
Frequency range
Specification Detail
Frequency range 20 Hz - 45,000 Hz (-3 dB)
Line section
Specification Detail
Departure level 2V maximum
Departure impedance <100Ω
Signal/noise ratio ≥119 dB (A)
Dynamic range ≥115 dB to 0 dbfs
THD+N. ≤0.03% @ 0 dbfs
Headphones section
Specification Detail
Departure level ≥2.6v / 3.5v maximum at 32Ω / 300Ω
Output power ≥211 MW at 32 Ω
≥39 MW at 300 Ω
Frequency response 10 - 80,000 Hz (-0.5 dB)
THD+N. ≤0.02% (1.27v at 16Ω)
Signal/noise ratio ≥113 dB (A)
Dynamic range ≥110 dB to 0 dbfs
Channel separation ≥80 dB (1khz / 600Ω)
Departure impedance <1Ω
Specification Detail
Dac Bit-Perfect DSD and DXD DAC of ESS
Specification Detail
Formats DSD 256 / 11.3 MHz
DXD 384 KHz
PCM 44.1 / 48/88.2 / 96/176.4 / 192/384 kHz
Format support
Specification Detail
Format support PCM: 44.1 / 48/88.2 / 96/176.4 / 192/384 kHz
DSD: 2.8 / 384 KHz 2.8 / 3.1 / 5.6 / 6.1 / 11.3 / 12.3 MHz
DXD: 352.8 / 384 kHz
MQA: Complete decoder
Energy consumption
Specification Detail
Energy consumption No signal: 0.8 W
Maximum signal: 1.5 W
Dimensions and weight
Specification Detail
Dimensions 26 mm (high) x 81 mm (width) x 88 mm (bottom)
Weight 92 g
Accessories included
Specification Detail
Accessories included USB-C adapter to USB-A
User manual


Sku: Oneoo

Open Box Product - Open Box
Our Open Box products are completely original, they are at a lower price since they have been opened to perform quality tests, lot and finished check, they are practically new, their boxes can come aesthetically imperfect but the product is total and fully functional and In a perfect condition. They also have their 270 -day guarantee for factory defects.