Designed in the
1 Year of
Best Suited for
12 Hours of
Pair with Laptop
USB 3.0 & S/PDIF
Upto 4,100 mW @ 16 Ω
iFi Audio's micro iDSD Signature is a transportable DAC/ headphone amp which features an inbuilt rechargeable battery along with space blue finish on the body. This battery provides clean and stable power eliminating the pitfalls of AC mains such as the dips and other noises. You can enjoy music for long with around 12 hours of playtime.
Micro iDSD Signature is meticulously designed with two Burr-Brown DAC chips placed in a dedicated ‘interleaved’ configuration. The digital engine used in Micro iDSD Signature comprises four unique signals - two pairs per channel. This ensures minimum floor noise, better channel separation and highlights all nuances of sound along with their micro dynamics. Micro iDSD Signature supports PCM 768, DSD 512, 2xDXD and MQA. Both PCM and DSD remain ‘bit-perfect’. Micro iDSD Signature supports hi-res audio which means it can handle CM data to 32-bit/768kHz, DSD up to DSD512 and single and double speed DXD.
The digital engine of Micro iDSD Signature consists of Extensive jitter-eradication technologies like the iFi’s GMT (Global Master Timing) femto-precision clock along with intelligent memory buffer. Not just that, Micro iDSD Signature also features iFi’s GTO (Gibbs Transient Optimized) digital filter, a filter customizing option using the exclusive firmware which can be downloaded on iFi Audio's original website. The custom OV Series operational-amplifier results in low noise and distortion along with a wide bandwidth while Texas Instruments low-noise ICs deliver high unity-gain bandwidth, reduced noise and distortion, stronger output drive capability, Common-mode and Power Supply Rejection Ratios of over 100 dB, wide maximum-output-swing bandwidths and high slew rates.
Micro iDSD Signature is designed to deliver power to a wide range of headphones including the power-hungry planar headphones as well as the sensitive IEMs through its 4100mW of power. The redefined signal path delivers best sonic texture and other features of micro iDSD Signature include low ESR (Equivalent Series Resistance), improved stability and reduced distortion so you listen to your music without any compromise. Moreover, the direct-coupled circuit design gives micro iDSD Signature and edge over the competition. The use of OS-CON capacitors which is found in products costing
iFi Audio micro iDSD Signature has a range of filter settings along with the amp stage which has unique three-level settings. These settings complement iFi Audio iEMatch technology which adapts output level along with XBass+ and 3D+ signature ensuring that iFi Audio micro iDSD Signature delivers the best of its performance. Eco, Normal and Turbo are the three power modes that will help you to connect micro iDSD Signature to all kinds of headphones, easily.
Micro iDSD Signature sports two digital audio inputs – USB Type-A and a S/PDIF socket. These inputs support electrical through 3.5mm as well as optical signals. If you want to connect speakers or power amps as DAC, you can do so by connecting them to iFi Audio micro iDSD Signature through a pair of RCA analogue outputs. It also has 6.3mm output and a 4.4 mm Pentaconn output. If you wish to connect headphones with 3.5 mm jack you can do so via an adapter. Both headphone outputs come with ‘S-Balanced’ output circuitry which allows micro iDSD Signature to deliver distortion-less balanced connections regardless of the headphone you are using it with.
|DIGITAL INPUTS||USB 3.0 type A “OTG” Socket (USB2.0 compatible/with iPurifier® technology built-in)|
|S/PDIF (3.5m coaxial/optical)|
|DAC||Bit-Perfect DSD & DXD, PCM DAC by Dual-core Burr Brown|
|CLOCK||Ultra low jitter GMT Femtosecond Clock|
|THD + N (0DBFS LINE)||<0.003%|
|OUTPUT VOLTAGE (LINE)||>2V|
|OUTPUT IMPEDANCE (ZOUT)||<240Ω|
|JITTER (CORRELATED)||Below AP2 test set limit|
|POWER (MAX)||10.0V/4,100 mW|
|POWER (CONTINUOUS)||>1,560 mW @ 64 Ohm >166 mW @ 600 Ohm|
|POWER (MAX)||5.5V/1,900 mW|
|POWER (CONTINUOUS)||>100 mW @ 300 Ohm >950 mW @ 32 Ohm|
|POWER (MAX)||2.0V/500 mW @ 8 Ohm|
|POWER (CONTINUOUS)||>250 mW @ 16 Ohm|
|DYNAMIC RANGE (HP)||>115dB(A) (Eco Mode, 2V Out)|
|THD &N (HP 500mW/16R)||< 0.008%|
|OUTPUT VOLTAGE (HP)||>10V (Turbo Mode)|
|OUTPUT IMPEDANCE (ZOUT)||<1Ω (iEMatch not engaged)|
|MAXIMUM OUTPUT POWER)||4,100 mW @ 16 Ohm Load|
|CONTINUOUS OUTPUT POWER||1,000 mW @ 64 Ohm Load|
|POWER SYSTEM||Charging via USB-C, BC V1.2 compliant up to1500mA charging current|
|DIMENSIONS||172 x 67 x 27 mm 6.8" x 2.6" x 1.1"|
|WEIGHT||295 g (0.65 Ibs)|
|BOX CONTENTS||1. iFi Audio - micro iDSD Signature|
|2. USB-C charging wire|
|3. USB wire with full-size plugs for PC connectivity|
|4. set of stereo RCA wires|
iFi Audio comes with 1 year warranty. To claim warranty click here.
Don't sweat it, this micro iDSD Signature comes with a 1 year warranty from iFi Audio that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about iFi Audio's warranty in India.
"The balanced connections are crystal clear, and the multiple side controls help the signal obtain a comfortable nominal gain. This is definitely an amp/DAC worth investing in."Read More
Ifi has some intresting products which solve unique problems and this device is essentially the combination of all those products into a single portable(Not Pocketable) unit.
-The power output is amazing for almost any kind of headphone
-There is no hiss in extremely sensitive iems when using iem match
-Xbass is amazing
-really good battery life
-as a dac its pretty sterile and open, if sterile sound is not your thing then it can be "fixed" with xbass
-really good to use with planar magnetic headphones which have low impedance and low sensitivity
I don't think there is any other comparable product in this range which can work as a high quality dac & amp
So glad to know that you love them:) We look forward to serving you again.
It has ample power as well as analog sound settings to personalize sound. I highly recommend it. I pair with an extremely source picky headphone in the HD800S, and with Xbass and 3D+ turned on with a minimal treble peak dip EQ on my laptop, the headphones sound incredible.
We thank you for this lovely review & we are glad you are enjoying it! Keep the music playing.
Let me just quickly throw a disclaimer here before I begin —‘I am not an Audiophile or an expert on sound’—therefore consider this review layman at best.
I got IDSD Signature as an upgrade to my ageing yet faithful—Fiio Q5. Although Q5 pairs exceptionally well with my Hifiman Sundara; I have been wanting to upgrade to a more solid and ‘does it all’ kinda DAC/AMP that would not chicken out when pitched against big boys like hifiman Arya if opportunity calls for it. I also based my decision on portability. You may rightfully call IDSD Signature as ‘transportable’ ; but anything that I can fit in my palms and gets me going without a mess of too many wires is portable at best.
I had wished if these were black just like their predecessor but upon unboxing they came off quite handsome in person. They have a faint blue metallic sheen to them and I think I can happily live with blue especially after considering what they did to my Sundara.
Sound wise, IDSD Signature offered me a very welcome change. I find Signature to be neutral with a slight touch of mid bass in lower mids and it’s apparent the moment you switch it on. I have to say I am loving that tiny smidge of bass in lower mids. The general airy-ness, clarity and separation coupled with an occasional flirting with XBass switch make this blue-brick a real DOPE MACHINE !!!
Take it from someone who hates bass boost implementations. But on IDSD Signature, I only had to flick the XBass+ switch just over a few times for me to like it. XBass+ does the bass just right for me on most tracks if not all. It’s a sweet switch to enable fun sound if you are not in a mood for serious listening. For most part however, I keep it off and I am happy that it’s there.
I wasn’t adequately impressed with 3D+ switch. It only makes some sense to me when I enable it on a recording that has Minimalistic arrangement of instruments and vocals like jazz. My bias for uncoloured sound makes me want to reject it almost immediately. I am sure people who are more open and unbiased than me will definitely find 3D+ fun to engage.
I found IDSD Signature to be very solid in terms of sound, built and use case. I love how they impart their musical spirit with my Sundara without being overbearing. My only gripe with IDSD Signature is the volume dial. It’s very sensitive and allows for a very fine dialling ‘which is great’—however I wish it offered a little more resistance while it was at it. Other than that it’s a very fine unit.
We are glad you had a comfortable shopping experience with us & it is delightful to read such positive reviews on your product! Cheers & Welcome to the club!
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