Headphone amplifier with DAC
iFi Micro iDSD Signature

Product code: 109891
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AED 2,999
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Description

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Description

Digital-analog converter + headphone amplifier powered by its own battery.

The DAC can hardware-play Octa-DSD512/PCM768/Double DXD/MQA.

The Micro iDSD can be configured to match any headphones, from tiny IEMs (in-ear monitors) to full-size professional headphones. The output level of the Micro iDSD is 8v/4000mW, making it one of the most powerful headphone amplifiers. With such power, it can drive even the most demanding headphones.@@iFi has established a reputation for being a company that embodies the most advanced solutions in the field of computer audio. The Micro iDSD takes another step forward. The new DAC features a Dual-Core Burr-Brown chipset, providing hardware support for DSD/PCM. This means that the Micro iDSD supports True Native PCM768, Octa-Speed DSD512, 2x DXD, and the new MQA format.

Where else have you seen something like this?

The Micro iDSD has three power modes: Eco, Normal, and Turbo - 250mW, 1000mW, and 4000mW respectively. In other words, the Micro iDSD is capable of fully unleashing the potential of any amplifier and any headphones. With the iEMatch technology, you can enjoy optimal sound quality with your in-ear headphones. The Micro iDSD redefines what a headphone amplifier should be like.@@In addition to being able to work with any device and any audio format, the iFi micro iDSD also features an analog volume control. SmartPower® is a built-in charging device for any smart device, be it an Apple, Android smartphone or tablet.

The charger has a 4800mAH battery, which is enough to fully charge an iPhone twice. As you can see, iFi's desire to make their device as convenient as possible is evident in this aspect as well - now you can enjoy high-end sound anywhere, anytime, without worrying about your battery running out soon.

iDSD devices have received the most favorable reviews from critics and users. The unique technologies used in these devices, namely 3D Holographic and XBass, have played a significant role in their popularity. These technologies have proven to be highly effective and innovative, prompting many manufacturers to attempt something similar in their own devices. The Micro iDSD is the first product in the iFi lineup that allows users to enable XBass and 3D Holographic functions for both headphones and speakers. The foundation of these technologies is analog, rather than digital, in order to accurately reproduce the sound of the original recording.

And that's not all... the Micro iDSD features so many unique characteristics that you won't find in any other device. Everything that iFi has incorporated into the Micro iDSD is based on the desires of ordinary users. It is their feedback that has shaped the Micro iDSD. The iFi Micro iDSD digital-to-analog converter is packed with unprecedented features, such as the Direct/Pre-Amp mode, 3.5mm input, SPDIF input/output, and much more. Don't believe it? Take a look at the specifications.

Inputs (Rear Panel):

  • USB 2.0 type A "OTG" Socket (with built-in iPurifier technology)
  • Compatible with PC (Apple/Win/Linux), iPhone, iPod Touch, iPad, and Android devices
  • USB 3.0 supported
  • Intelligent SPDIF® Coaxial: combined SPDIF port (coaxial input/output optical input)
  • PCM up to 192kHz

Outputs (Rear Panel):

  • Audio RCA L+R
  • Intelligent SPDIF® Coaxial up to 192kHz PCM.

Output (Right Side):

  • SmartPower® Socket - fast charging for portable devices. Compatible with USB Type-C 1.2 charging standard - 5V @ 1.5A.@@Control (front panel): Headphone output:
  • 6.3 mm, 4.4 mm balanced Pentaconn
  • Volume control with on/off positions
  • Precision analog volume control
  • X-Bass® On/Off
  • 3D Holographic Sound® On/Off. Automatically switches for speakers and headphones (two independent circuits)

Control (left side):

  • Power mode. Turbo, Normal, Eco - power and amplification controlled by internal microprocessor
  • Polarity switch button - normal/inverted
  • Filtering: 3 switches provide 6 filtering modes (see below).@@Control (bottom panel):
  • Line Direct/Preamplifier: Pre-amplification function off/on, adjustable gain 0 - 9dB. Fixed gain - 2V / adjustable up to 5V
  • iEMatch®: Circuit for adjustment to in-ear headphones (eliminates hiss). Modes: Off / High sensitivity / Low sensitivity

DAC Section:

  • DAC: Dual-core DSD, DXD, PCM DAC from Burr Brown. 2 DAC chips, 4 channels, 8 signal lines. Special circuit design for minimal signal-to-noise ratio
  • Bit-Perfect DSD processing Bit-Perfect PCM processing

Clocking:

  • GMT Femto Clock microcontroller. RMS jitter in the range of 12kHz - 1MHz, less than 280 femtoseconds

Supported formats:

  • DSD 512/256/128/64/24.6/22.6/12.4/11.2/6.2/5.6/3.1/2.8 - native signal decoding
  • DXD 2x/1x/768/705.6/384/352.8kHz - native signal decoding
  • PCM 768/705.6/384/352.8/192/176.4/96/88.2/48/44.1kHz - native signal decoding

Filters:

  • PCM. Choice of digital filtering: Bit-Perfect processing/minimum phase/standard
  • DSD. Choice of analog filtering: Extreme/Extended/Standard ranges
  • DXD. Fixed analog filter: Bit-Perfect processing

Technical characteristics of the DAC section:

  • Dynamic range: 117 dB
  • Non-linear distortion coefficient: <0.003%
  • Output voltage (line output): >2V
  • Output impedance (Zout): <240 ohms
  • Jitter: below the AP2 testing limit.

Headphone amplifier output: Turbo mode. Maximum Power: 10.0V/4,100 mW at 16 Ohms, sustained power >1560 mW at 64 Ohms Normal mode. Maximum Power: 5.5V/1,900 mW at 16 Ohms, sustained power >950 mW at 32 Ohms Eco mode. Maximum Power: 2.0V/500 mW at 8 Ohms, sustained power >250 mW at 16 Ohms

Dynamic range: >115dB(A) (Eco Mode, 2V Out) Non-linear distortion ratio (500mW/16R): <0.008% Output voltage: >8V (Turbo Mode) Output impedance (Zout): <1 Ohm (without iEMatch engaged) Maximum output power: 4,100mW at 16 Ohms - triggering protection circuit during sinusoidal signal testing Sustained power: 1,000mW at 64 Ohms

Up to 12 hours of battery life

Package includes:

  • Portable DAC with built-in amplifier
  • USB cable
  • Documentation
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Characteristics

Characteristics

Brand
Impedance, Ohms

No higher than 32 Ohms for smartphone headphones. When using a good player or amplifier, it can be up to 100 Ohms. For stationary models you should coordinate the impedance with the amplifier power

Glossary of terms
1
Headphone output
6.35mm jack, 4.4mm jack
Output connectors
RCA, Coaxial, Optical
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
4.1
DAC bit depth, bits
32
Internal DAC
yes
Sampling rate, kHz

The sampling frequency of a time-continuous signal during its sampling

Glossary of terms
768
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
117
Powered by USB
yes
Connecting to a computer via USB
yes
DSD support

Direct Stream Digital is a single bit audio format developed by Sony and Philips. It uses density-pulse modulation coding (a kind of sigma-delta modulation) and is used to store records on SACD

Glossary of terms
yes
Built-in battery
yes
Circuit design
discrete

The circuit with transistors used.

Словарь терминов
Color
Form factor
portable
Input connectors
USB-A, Optical, Coaxial
Material
aluminum
Playback via USB
yes

Playing music files via USB

Словарь терминов
Preamplifier

A preamp is used as a hub to connect other components of the audio system. The preamp can be either integrated, or an autonomous device.

Glossary of terms
yes
Depth, mm
177
Height, mm
28
Width, mm
67
Weight, g
295
Service life, months
24
Warranty, months
12
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