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Summary of Contents for ifi Pro iDSD
- Page 1 Pro iDSD User Manual...
- Page 2 Thank you for purchasing this Pro series iDSD. The Pro iDSD is a 'state of the art' reference digital to analog converter. lt is able to excel in many scenarios - as a wireless hi-res network player or the central DAC in an expensive high-end home system, to quote just two examples.
- Page 3 iDSD Input Filter DSD 1024 Remastering Gain(dB) LED indicator Single-Ended 3.5mm headphone socket Power Headphone gain selection: 0dB/9dB/18dB Input selector (incl. Brightness/Polarity) Headphone 6.3mm socket P.5-6 Filter selector (incl. DSD Remastering/WPS) Balanced 2.5mm headphone socket Output mode: Solid-State/Tube/Tube+ Analogue volume control (Line and OLED display Headphone outputs) IR remote control sensor...
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Page 4: Table Of Contents
26 27 Host Device DC 15V/4A DC Loop -Out Technology licensed from AMR-Audio, UK Assembled in China Sync Mode Pro (Var) Pro (Fixed) DARS HiFi (Var) Stand Alone HiFi (Fixed) COAXIAL Sync Out Output Mode OPTICAL Sync In (USB) Digital Inputs Outputs 24 25 XLR Balanced signal outputs... - Page 5 1. LED Green: Warming Up White: Solid-State Mode Orange: Tube Mode Red: Protection Mode 2. Standby/Power 3. Input selector Use the selector to ’cycle’ through the following input options: - WiFi/Ethernet/Hard Disk/Micro SDHC - Device USB (connect to a computer) - Coaxial/Optical Digital Input - XLR Digital Input - BNC Digital Input...
- Page 6 4. Digital lter selection The Pro iDSD offers the following three choices of digital processing: i) Direct – Bit-Perfect Both PCM and DSD signals are not processed in any way. For PCM this is effectively what is sometimes called "non-oversampling" or "zero-oversampling". For DSD it means the le is retained in the original DSD format and directly converted to analogue without any digital processing.
- Page 7 USB bus. Therefore, the USB section is quite impervious to aftermarket add-ons or tuning accessories. For ease of use, simultaneously use the WPS button on the Pro iDSD and the router so that they can both complete the handshake to pair up.
- Page 8 If the tube heater is shut off when switching to tubes, they will need to warm-up again (as if the whole Pro iDSD itself was powered up from cold). Music will continue to play via the solid-state section until the tubes are ready.
- Page 9 Warning: at the outset do not use excessive gain, otherwise damage to hearing or connected headphones may ensue. AMR/iFi audio is not responsible for any damage/injury from misuse. 9. Headphone 6.3mm socket 10. Balanced 2.5mm headphone socket 2.5mm TRRS Balanced...
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Page 10: Xlr Balanced Signal Outputs
12. Infrared Remote Receiver Ÿ Window for infrared remote receiver signal. Ÿ Rear of Pro iDSD Analogue Outputs 13. XLR Balanced signal outputs Balanced signal output to an ampli er. 14. Single-Ended signal outputs Single-Ended signal output to an ampli er. -
Page 11: Ethernet
For connecting an external hard disk drive (HDD, FAT32), USB memory stick or similar to play music, classic hard drives should be formatted as FAT32 and self-powered from an external power supply. All les from MP3 to FLAC to DSD(*) can be played directly through the Pro iDSD via the MUZO Player app. -
Page 12: Xlr Digital Input
Workstation (DAW). 22. Wi-Fi antenna Using the MUZO Player app, connect the Pro iDSD to the local WiFi system to stream Spotify, TIDAL, Napster, QQ Music and many more. It is also possible to enjoy Airplay network audio playback from iPhone, iPad and Mac computers. -
Page 13: Clock
15V/4A DC power input. Tip: Any 9v to 18v DC power source with a minimum of 60VA rating can be used with the Pro iDSD (including vehicular, RV and boat based 12V DC power). We strongly recommend the use of the included iPower Plus 15v. It offers the latest in power supply technology and is... - Page 14 1) DAC section The Pro iDSD uses a quad 'core' of iFi audio's bit-perfect DSD & DXD DAC by Burr-Brown in a custom 'interleaved' con guration. A total of eight pairs (four for each channel) of differential signals are used and mixed.
- Page 15 • Playback from Network Attached Storage (NAS) • Streaming playback includes Spotify, TIDAL, Napster, QQ Music and others • The Pro iDSD is a agship, hence it has MQA decoding on-board for the maximum quality of playback, be it on MQA music les or streaming.
- Page 16 Zero Jitter Memory Buffer for all inputs Data for all inputs is sent to a large 'dynamic' memory buffer, where it is de-jittered to eliminate any transmission of source jitter to the DAC output. The memory buffer data is then re-clocked by the low-jitter Global Master Timing® clock, which also drives the X-Core 200 &...
- Page 17 Reference Signal) according to AES11. And if you happen to have a really good atomic clock (of Sanford Research Systems PERF10 quality or higher), it can be used to further elevate the Pro iDSD's already impressive internal clock system performance. This is very much an over-speci ed approach, yet the iFi agship deserves this feature in order...
- Page 18 Passive CLC circuitry in the Pro iDSD provides the correct ltering well into the MHz region, so that the follow-on analogue stage is not required to handle ultrasonic noise and RFI originating within the DAC processes.
- Page 19 Individual low-noise TI LDO regulators with local LC ltering provide the nal low-noise power for all individual digital sections. A total of six individual regulators cover clock, S/PDIF input and the digital section. The analogue side of the DAC is supplied with ultra-low noise super-regulators based on iFi audio's custom ultra-low noise OV2028 operational ampli er.
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Page 20: Speci Cations
Every section in the Pro iDSD has received massive attention to detail. Classic, very low-noise design techniques found in tube equipment have been combined with 21st century tech to deliver extreme performance. Speci cations Sample rates: PCM up to 768kHz DSD up to 49.152MHz (DSD 1024) - Page 21 Weight: 1980g (4.37 Ibs) Note, the clock sync in/out options allow several Pro iDSD's to be slaved together for multichannel use. 8-12 channels are supported on one USB 2.0 connection from the host computer. Speci cations are subject to change without notice.
- Page 22 Balmoral Lodge,139-141 Cambridge Road, Churchtown, Southport, PR9 7LN. UK. www.i -audio.com Ver1.2...
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