iFi Pro iDSD 4.4 Mastering Grade DSD DAC Amplifier
iFi - Pro iDSD 4.4 Mastering Grade DSD DAC Amplifier with XMOS XU216 X-Core 200 Series 16-Core Processor
Mastering Grade DSD DAC Amplifier
iFi - Pro iDSD 4.4
take your music, movies and gaming to new heightsThe flagship iFi Pro iDSD is for those who like music in all its flavours, especially high spec. It works as a standalone unit, a streamer and a DAC/amp. With the option to listen in solid-state, tube or tube+, there’s something for everyone.
The Pro iDSD plays all files from MP3 up to hi-res DSD and MQA. For the first time, it brings Studio Grade DSD1024 to a wider audience – a rare feat. You are well and truly future-proofed. All controlled from the palm of your hand via an app. As with most iFi gear, filters have been included to add flavour to your listening. Bit Perfect, Bit Perfect+, Apodising, and Transient Aligned have also been included.
Amazing Features
• XMOS XU216 X-Core 200 Series 16-Core processor
• 2 quad stacks of bit-perfect DSD & DXD Burr-Brown DACs
• Decodes sample rates up to 49.152MHz (768kHz PCM and DSD 1024)
• Wireless DLNA/Airplay/Ethernet Hi-Res Playback
• Handles bit depth up to 32 bit
Your music. Your way.
Easy listeningConnect wirelessly to stream your favourite songs from Tidal, Spotify, Napster or any streaming platform. Take it to the next level by using a wired Ethernet connection to play from a router or NAS (Network Attached Storage). Or relax with AirPlay to enjoy playback from your iPhone, iPad or Mac.
Versatile Connections
USB ConnectivityUse USB Type A to connect a hard disk drive or a memory stick or Type B to connect a laptop or server. Or slot in a micro SDHC card with music files for instant playback. Enjoy your tunes from your CD transport and improve your gaming or movie experience as you connect via the coaxial/digital input.
Moved By Music
all bases coverediFi have given you a choice of headphone sockets and outputs to cover all bases. The Pro iDSD currently comes in two ‘balanced’ versions – with 4.4mm or 2.5mm balanced headphone sockets.
You choose which version you need. Regardless of your mood, how you connect or how you listen, the Pro iDSD has an option for you.
Enhanced Audio
XMOS 16-Core processorThe Pro iDSD features the new XMOS XU216 X-Core 200 Series 16-Core processor. All-digital processing is Bit-Perfect unless particular digital filters are explicitly selected.
Master Quality AuthenticatedListen 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 allows music fans to stream the original master recording into their home, car or from their mobile.
premium componentsThe Pro iDSD is rich with premium components – a Japan Alps rotary volume potentiometer, audio-grade ELNA Silmic capacitors and a bank of Elna Dynacaps ‘super capacitors’.
fully discrete, fully-balancedThe amplifier audio circuit is fully discrete, fully-balanced with either tube or J-FET input switchable, bipolar second stage and MOSFET-buffered bipolar Class A Power stage.
extra Tube+ settingThe Pro iDSD has an extra Tube+ setting. This reduces overall loop-gain and negative feedback to the minimum and presents a different sonic perspective between the tube’s natural harmonics and transient performance.
individual input circuitsDifferent from other amplifiers that have the same circuit and just switch in/out the tube section, the Pro iDSD is the very first of its kind to have two individual input circuits – one tube (General Electric 5670 tubes!) and one solid-state.
Galvanic isolationAll inputs are galvanically-isolated (including USB). The USB input section has its own separate power management system with multiple regulators and filtering operating from the galvanically-isolated voltage generated to power this section.
LINKPLAYWith LINKPLAY™ WiFi/network playback, built-in Spotify and Tidal, and wide protocol support for 32-Bit/192kHz and DSD64, the Pro iDSD can be also used without a computer to stream audio directly.
Global Master TimingData is sent to the Memory Buffer from all inputs. Here it is de-jittered to remove any transmission of source jitter to the DAC output. The data from the Memory Buffer is further re-clocked by the low-jitter Global Master Timing® clock, which also drives the X-Core 200 and FPGA.
DSD1024Upsampling to DSD1024 has previously only been available to a limited few. The Pro iDSD makes it available to a wider audience. The DSD1024 remastering is handled by the Crysopeia® FPGA and this is where the FPGA excels.
quad stackThe Pro iDSD has a ‘quad stack’ of Bit-Perfect DSD and DXD DACs by Burr-Brown. The ‘interleaved’ configuration means up to 8 pairs of differential signals can be used and mixed, equal to 4 pairs of signals per channel.
The Tech Spec
| Features | Specification | Sample rates | PCM up to 768kHz DSD up to 49.152MHz (DSD 1024) DXD and double-speed DXD (2xDXD) |
|---|---|
| Inputs | USB (required for DSD, DXD and sample rates above 192KHz) AES3 (XLR – single link) S/PDIF (coaxial/optical combo) BNC multifunction (S/PDIF in or sync input) |
| Outputs | Balanced XLR at 4.6V (+15.5dBu – HiFi) or 10V (+22dBu – Pro) Single-Ended RCA at 2.3V (HiFi) or 5V (Pro) Headphones 6.3mm & SE 3.5mm Jack at 0.55V/2.1V/5V Headphones BAL 2.5mm/4.4mm Jack at 1.13V/4.6V/10V Headphones out 1,500mW RMS X 2 @ 64 ohm, 4,000mW max. 2 X @ 16 Ohm |
| Headphone Output Impedance | Single-Ended (S-BAL): < 1 Ω Balanced: < 2 Ω |
| Volume control | Balanced (6-gang) Alps potentiometer, motorised with IR remote control XLR/RCA outputs can be selected as fixed level or adjusted 6.3mm headphone jack is always adjusted |
| Other Functions | Various digital and analogue filters can be selected for DSD and PCM up to 384KHz |
| PCM Filters | Bitperfect 44.1 – 192kHz, always used for 352.8 – 768kHz Bitperfect + 44.1 – 96kHz Gibbs Transient Optimised 44.1 – 384kHz Apodising 44.1 – 384kHz Transient Aligned 44.1 – 384kHz |
| DSD filters | Fixed 3rd order analogue filter @ 80kHz with correction for DSD’s -6dB gain |
| Gain (headphone section) | User-selectable: 0dB, 9dB and 18dB |
| Dynamic range | 119dBA (solid-state, PCM, -60dBFS) |
| Output power | Pro iDSD 4.4mm socket. (16 Ω, balanced/single-ended): >4200mW /1>1,575mW Pro iDSD 2.5mm socket. (16 Ω, balanced/single-ended): >4000mW /1>1,500mW |
| Output voltage | (600Ω, balanced/single-ended): >11.2V / >5.6V |
| Input voltage (Pro iDSD) | DC 9V/6.7A – 18V/3.35A |
| Input voltage (iPower+) | AC 85 – 265V, 50/60Hz |
| Power consumption | < 22W idle, 50W max. |
| Dimensions (WxHxD) | 220 x 63 x 213mm |
