iFi iDSD Diablo Transportable USB DAC and Headphone Amplifier
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iFi’s most powerful portable DAC and headphone amp for pure sonic performance.
The iDSD Diablo, with its sleek new design and fiery red finish, sits proudly at the top of our range of portable/transportable DAC/amps. It is built for purists – the true headphone enthusiasts who crave pure, unadulterated sonic performance.
Just like a racing car designed for uncompromising speed, the iDSD Diablo sets aside sonic tailoring as well as Bluetooth connectivity to focus on pure sonic power. Prepare for a riveting ride as it will drive any headphone on the planet with aplomb.
Put simply, the iDSD Diablo is our most powerful transportable amplifier.
We use two Burr-Brown DAC chips and the new 16-core XMOS chip to process the data received via the USB and S/PDIF digital inputs.
This means the iDSD Diablo can handle up to PCM 768, DSD 512, 2xDXD. Both PCM and DSD remain ‘bit-perfect’.
It also provides full MQA decoding — not just rendering!
And with MQA now available over S/PDIF, you can take advantage of any MQA CDs in your collection.
Balanced, differential analogue circuit design reduces noise and cross-talk within the signal path by fully separating the left and right channels. The iDSD Diablo benefits from further refinements to our balanced, symmetrical dual-mono topologies with short, direct signal paths. We call this PureWave.
Able to drive all manner of headphones with ease, the iDSD Diablo delivers up to 5000mW of prodigious power, propulsive energy and engaging dynamics, coupled with a remarkable ability to resolve fine texture and detail.
With 3 settings, you can adjust power and gain to suit your daily driver or track day supercar!
- Turbo – ramps up the level of drive for current-hungry headphones
- Normal – for most over or on ear headphones
- Eco – dials down the power to suit sensitive in-ear monitors
Power that does not corrupt
The iDSD Diablo’s focus on pure, unadulterated performance, means much attention has been applied to the power supply circuity.
Battery power provides ultra-clean and stable DC current avoiding the issues of mains electricity – dips, spikes and noise-inducing RFI/EMI pollution. BUT there are sonic downsides resulting from low output voltage and inconsistent output impedance as batteries discharge.
These issues are fully tackled by the iDSD Diablo’s design.
In order to make less eﬃcient headphones, like planar magnetics, sing, the voltage needs to be stepped up from 3.7V to +/- 15V. We use a step-up converter running at 1.2MHz – a frequency far beyond audibility that is easier to filter than a typical switch-mode supply, enabling high linearity and ultra-low noise.
Formula 1, iFi style
High-bandwidth power supply circuity is dedicated to each critical part of the iDSD Diablo’s design, with independent linear regulation delivering excellent PSRR (Power Supply Rejection Ratio) performance.
The headphone amp stage eschews IC regulators in favour of Panasonic OS-CON capacitors, delivering 2320uF between them.
The DAC section benefits from an ultra-low-noise regulator with additional passive filtering, reducing high order harmonic distortion and, in turn, jitter.
Even the USB input stage benefits from dedicated regulation and multi-stage filtering, and the microprocessor control circuitry (often a local source of digital noise) has separate regulation, too.
Hook it all up…
At the front of the unit, alongside a standard 6.3mm single-ended headphone socket, resides a 4.4mm Pentaconn output for headphones offering balanced connection.
At the back are two digital audio inputs: USB-A and a S/PDIF socket that accepts both electrical and optical signals, the former via a 3.5mm connector and the latter via a supplied adapter.
The USB-A input features a ‘male’ connector, rather than a typical ‘female’ port for greater mechanical integrity. A separate USB-C charging port is also provided, along with a 4.4mm Pentaconn balanced output to connect to an external amp.
Features & Specifications
|Digital Inputs||USB 3.0 type ‘A’ (USB2.0 compatible)
S-PDIF (3.5mm coaxial/optical)
|THD + N||Balanced
|Headphone Max Output||Balanced
|>19.2V/611 mW (@ 600 Ohnn)
>12.6V/4,980 mW (@ 32 Ohm)
>9.6V/153 mW (@ 600 Ohm)
>8.8V/2,417 mW (@ 32 Ohm)
|Fixed Audio Output||Balanced 4.4mm|
|Power System||Charging via USB-C (iFi iPower included)
BC V1.2 compliant up to 1900mA charging current
|Dimensions||166 x 72 x 25 mm
6.5″ x 2.8″x 1.0″
|Weight||330g (0.73 lbs)|
|Warranty period||12 months|
|*Specifications are subject to change without notice.|