Description
ifi Micro iDSD Signature
The limited edition ifi Micro iDSD Signature is high-performance powerhouse, brilliant and flexible audiophile DAC in miniature format, audiophile performance in a compact and portable unit.
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.
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
- a lower noise floor
- improved channel separation
- finer musical detail and micro-dynamics
The ifi micro iDSD Signature handles up to PCM 768, DSD 512, 2xDXDand MQA.All this is done natively. Both PCM and DSD remain ‘bit-perfect’
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 maximise sonic texture. High spec components featuring class-leading qualities such as low ESR (Equivalent Series Resistance), high stability and low distortion mean top-notch sound quality and maximum musical enjoyment.
Add in the direct-coupled nature of the circuit – no coupling capacitor is present – and the ifi micro iDSD Signature definitely runs rings around the competition.
The micro iDSD Signature features two digital audio inputs – USB Type-A and an S/PDIF socket that accepts both electrical, via a 3.5mm connector, and optical signals – adapter supplied.
It also houses a pair of RCA analogue outputs to connect to a pair of powered speakers or a power amp and passive speakers, to act as a DAC and preamplifier.
There is a 6.3mm output for headphones that have a standard single-ended connector (headphones with a 3.5mm jack can be connected using an adapter) and a 4.4mm Pentaconn output for headphones offering balanced connection.
Both headphone outputs utilise our ‘S-Balanced’ output circuitry. This delivers the sonic benefits of balanced connections with all headphone/earphone types – even those with single-ended connectors – cutting crosstalk and associated distortion in half.
In/Out | ||
| Digital Inputs | USB 3.0 type A “OTG” Socket (USB2.0 compatible/with iPurifier® technology built-in) S/PDIF (3.5m coaxial/optical) | |
| Output | Balanced: 4.4mm SE: 6.3mm/RCA | |
DAC | ||
| DAC | Bit-Perfect DSD & DXD, PCM DAC by Dual-core Burr Brown | |
| Clock | Ultra low jitter GMT Femtosecond Clock | |
| Formats | DSD512/256/128/64, Octa/Quad/Double/Single-Speed DSD, DXD (768/705.6/384/352.8kHz), Double/Single-Speed DXD PCM (768/705.6/384/352.8/192/176.4/96/88.2/48/44.1kHz) MQA | |
Filters | ||
| DSD | Extreme/Extended/Standard Bandwidth | |
| PCM | Bit-Perfect/Minimum-Phase/Standard | |
| DXD | Bit-Perfect Processing | |
Line Output | ||
| Dynamic Range (Line) | >117db(A) | |
| THD & N (0dBFS Line) | <0.003% | |
| Output Voltage (Line) | >2V | |
| Output Impedance | <240Ω | |
| 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 | |
Spec | ||
| Battery | Lithium-polymer 4800mAh | |
| 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) |
Anonymous (verified owner) –
Excellent product & super service