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iFi Audio iDSD Micro Signature

This product is no longer available for sale!

Specifications and features

DSDHi-Res AudioMQAUSB

Overview

Finely tuned Based around two Burr-Brown DAC chips in a custom ‘interleaved’ configuration, the digital engine has four pairs of differential signals - two pairs per channel. This means:

  • lower noise floor
  • better channel separation
  • finer musical details and micro-dynamics

The micro iDSD Signature handles up to PCM 768, DSD 512, 2xDXD and MQA. All of this is done natively. PCM and DSD remain “bit-perfect”.

Circuit training

With up to 4100mW of power, the micro iDSD Signature can drive all manner of headphones with aplomb, from highly sensitive in-ear monitors to current-hungry planar headphones.

The signal path has been refined to maximize sonic texture. Premium components with top-notch qualities such as low ESR (Equivalent Series Resistance), high stability and low distortion mean first-class sound quality and maximum musical enjoyment.

Add to this the direct-coupled nature of the circuit - no coupling capacitors are present - and the micro iDSD Signature definitely runs rings around the competition.

Get connected

The micro iDSD Signature has two digital audio inputs - USB Type-A and an S/PDIF socket that accepts both electrical signals, via a 3.5mm connector, and optical signals - adapter supplied.

It also houses a pair of RCA analog outputs to connect to a pair of powered speakers or to a power amp to act as a DAC.

There is a 6.3mm output for headphones that have a standard unbalanced connector (headphones with a 3.5mm jack plug can be connected using an adapter) and a Pentaconn 4.4mm output for headphones offering our S-Balanced connection.

Both headphone outputs use our ‘S-Balanced’ output circuitry. This offers the sonic benefits of balanced connections with all headphone/earphone types - even those with unbalanced connectors - cutting crosstalk and associated distortion in half.

Battery-powered DAC/headphone amp

  • DAC: Bit-Perfect DSD & DXD, PCM DAC by Dual-core Burr Brown
  • Clock: Ultra-low jitter femtosecond GMT

Filters

  • DSD Extreme / Extended / Standard bandwidth
  • PCM Bit-Perfect / Minimum-Phase / Standard
  • DXD Bit-Perfect Processing

Supported Formats

  • DSD512 / 256/128/64,
  • Octa / Quad / Double / Single speed DSD,
  • DXD (768 / 705.6 / 384 / 352.8 kHz),
  • DXD
  • Double / single speed PCM (768 / 705.6 / 384 / 352.8 / 192 / 176.4 /96/
  • 88.2/ 48/ 44.1 kHz) MQA

Measurements

  • Line output
    • Dynamic range (line) > 117 dB (A)
    • THD & N (line 0dBFS) <0.003%
    • Output voltage (line) > 2 V
    • Output impedance <240Ω
    • Jitter (correlated) Below the limit of the AP2 test set

Power Supply

  • Battery: 4800mAh Lithium-polymer
  • Power system: Charging via USB-C, BC V1.2 compatible up to 1500 mA charging current

Connectivity

  • Digital inputs
    • USB 3.0 type A “OTG” socket (USB2.0 compatible / with integrated iPurifier technology)
    • S/PDIF (3.5 mm coaxial / optical)
  • Output
    • Balanced S: 4.4 mm
    • SE: 6.3 mm / RCA

General

  • Dimensions (W x H x D) 172 x 67 x 27 mm
  • Weight: 295 g

User reviews

Freddy

I am very satisfied with my purchase.
I already own an iFi Audio iDSD micro.
I use it either with a Cowon Plenue 1, my iPod, or with my smartphone and Meze headphones.

Comment from April 04, 2022 — Experience from February 25, 2022

Automatically translated — Show original (French)
Je suis très satisfait de mon achat..
J'ai déjà en ma possession un iFi Audio iDSD micro.
Je l'utilise soit avec un Plenue 1 de cowon, soit mon IPOD, soit mon avec mon smartphone avec un casque Mèze.
  • Eco-contribution included in the sale price.
  • Manufacturer reference: IDSDSIGNATURE
  • GTIN / EAN: 5060738784080
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