Out of this world
Sporting a Space Blue finish and powered by a built-in rechargeable battery, the micro iDSD Signature is a transportable DAC/headphone amp that’s ready for anything that the universe throws at it.
Battery power means it’s ultra-clean with ultra-stable DC power and avoids the pitfalls of AC mains – dips, spike and noise-inducing RFI/EMI pollution.
And with up to 12 hours playing time, depending on the headphones and performance mode engaged, it feels like you could take it to the moon and back.
- Dual Core Burr Brown True Native chipset supports all hi-res audio formats up to PCM 32 bit / 768kHz, DSD512, and MQA
- 4000mW headphone amplifier with balanced topology and 4.4mm pentacon output
- XBass+, 3D+, and iEMatch create an immersive and personalized headphone or speaker listening experience
- USB A, S/PDIF digital and optical audio inputs; 6.3mm and 4.4mm headphone outputs, RCA line outputs
- Rechargeable battery provides 6-12 hours of listening, or play while charging
The Burr-Brown True Native® chipset means file formats remain unchanged or ‘bit-perfect’. This means you are listening to music as the artist intended in the format in which it was recorded.
At iFi we use Burr Brown extensively in our products having selected it for its natural-sounding ‘musicality’ and True Native architecture. Our experience with this IC means we know how to make the most of it.
Doubling the DAC chips results in 3dB lower noise floor and better channel separation. Together with power supply advancements and advanced channel interleaving, the noise floor has been halved.
All of this equals stellar sonic performance.
Hi-res audio support is state-of-the-art with True Native® playback. It handles PCM data to 32-bit/768kHz, DSD up to DSD512 and single and double speed DXD.
Thanks to the Burr-Brown DAC chip’s four-channel True Native design, PCM and DSD take separate pathways – this enables DSD, as well as PCM, to remain ‘bit-perfect’ in its native form right through to analogue conversion. This is not the case with all DAC devices from other brands – even if DSD compatibility is stated, many such DACs convert DSD signals to PCM.
Listen to Master Quality Authenticated audio straight out of the box. Connect to Tidal Masters and check the option to stream MQA.
MQA is an award-winning audio technology that enables music fans to stream the original master recording into their home, car or on their mobile. In the words of Gilbert O’Sullivan, iconic Irish-born singer-songwriter, “The great thing about MQA is that it delivers the finesse that was there in the desk sound. It’s tremendous, it sounds really good.”
|As with many other iFi audio products, we’ve incorporated a custom OV Series operational-amplifier. This top-notch component contributes to the extremely low noise, low distortion (0.0001%) and wide bandwidth.|
|With output power up to 4,100mW, this headphone amplifier drives all headphones with ease. It has 3 power modes – Eco, Normal and Turbo. Power and gain can be dialled-in perfectly to suit ALL headphones.|
iFi’s exclusive S-Balanced® circuit delivers maximum performance from single-ended and balanced headphones alike.
3D+ Holographic® delivers an immersive, deep soundstage.
XBass+® delivers a deep, tighter bass sound.
|Texas Instruments low-noise ICs offer great unity-gain bandwidth, very low noise and distortion, high output drive capability, Common-mode and Power Supply Rejection Ratios of over 100 dB, wide maximum-output-swing bandwidths and high slew rates.|
Panasonic OS-CON caps totaling 5,410uF give very-low Equivalent Series Resistance (ESR), excellent noise reduction capability and frequency response characteristics. In addition, OS-CONs have a long-life span and its ESR changes little even at low temperatures since the electrolyte is solid.
An important aspect of the circuit design is its direct-coupled nature (no coupling capacitor is present), achieved without a conventionally applied DC servo.
DirectDrive® equals a direct signal path which means less signal degradation. This direct signal path is unequalled in audio and is the reason why the sound is so ‘true’.
|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|
|Dynamic Range (Line)||>117db(A)|
|THD & N (0dBFS Line)||<0.003%|
|Output Voltage (Line)||>2V|
|Jitter (correlated)||Below AP2 test set limit|
Headphone Power Output
|Turbo Mode||Power (max)||10.0V/4,100 mW|
|Power (continuous)||>1,560 mW @ 64 Ohm
>166 mW @ 600 Ohm
|Normal mode||Power (max)||5.5V/1,900 mW|
|Power (continuous)||>100 mW @ 300 Ohm
>950 mW @ 32 Ohm
|Eco mode||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||<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)|
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