IFI AUDIO RELEASES PRO IDSD STREAMING DAC

Jay Garrett's avatar

by Jay Garrett

5th September, 2018

IFI AUDIO RELEASES PRO IDSD STREAMING DAC

iFi Audio has just released its new Pro iDSD which is a hi-res DAC/preamp, Wi-Fi streamer and headphone amp.

The Pro iDSD features sophisticated digital and analogue circuitry combined with an array of sonic tailoring facilities including upsampling to DSD1024 and a switchable valve/solid-state output stage, which all makes for exciting reading.

iFi Pro iDSD

ifi pro idsd

iFi Audio has combined classic design techniques used to achieve ultra-low-noise in tube equipment with cutting-edge, 21st-century technology to deliver stunningly superior performance.

The Pro iDSD uses a Quad ‘stack' of Burr-Brown Bit-Perfect DSD and DXD DACs in a custom ‘interleaved' configuration. The result is that a total of eight pairs of differential signals can be used and mixed – that's four pairs of signals per channel.

A signals to the DACs are re-clocked with the low-jitter Global Master Timing master clock; this has been borrowed from parent company AMR's revered DP-777 DAC.

ifi pro idsd

Digital processing power comes by of an XMOS XU216 X-Core 200 Series 16-Core processor. This brain can deal with 2,000 MIPS (two billion instructions per second) calculation when in dual-issue mode as a USB interface.

Unusually, there is no ASRC or up-sampling involved, unless you select a digital filter. However, all digital processing is Bit-Perfect.

All of the Pro iDSD's inputs (including USB) are galvanically isolated, and the USB input is self-powered. LINKPLAY Wi-Fi/network playback, as well as Spotify and Tidal,  are baked in. You also get Airplay and DLNA support. Furthermore, there's extensive protocol support for 32-Bit/192kHz and DSD64.

The Crysopeia FPGA (field-programmable gate array) is employed to handle up-sampling duties.  The Pro iDSD will play all audio formats to DSD1024 or DSD512 or PCM 768K with user-selectable digital filters.

iFi Pro iDSD specifications

Sample Rates

  • PCM up to 768kHz
  • DSD up to 24.576MHz
  • DXD and double speed DXD (2xDXD)

Inputs

  • USB (required for DSD, DXD and sample rates above 192KHz)
  • AES3 (XLR - single link)
  • SPDIF (RCA/Optical combo)
  • BNC multifunction In (SPDIF/AES3id In, DARS In, 10MHz In, Atomic clock in)
  • BNC multifunction Sync Out (DARS out, 10MHz out)

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 Jack at 1.13V/4.6V/10V
  • Headphones out 1,500mW RMS X 2 @ 64 ohm, 4,000mW max. 2 X @ 16 Ohm

Available now, the iFi Audio Pro iDSD sells for $3,699 RRP.

For more information, go to iFi Audio.

Further reading: Computer & Desktop Audio Discussion Forums


The article iFi Pro iDSD Streaming DAC Announced first appeared on StereoNET UK.

Jay Garrett's avatar

Written by:

Jay Garrett

StereoNET's Bass playing Hi-Fi junkie and UK correspondent heads up StereoNET UK as Editor. His passion for gadgets and Hi-Fi is second only to being a touring musician.

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Posted in: Hi-Fi Headphones
Tags: ifi audio  busisoft 

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