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iFi Professional iDSD Desktop DAC/Tube/Stable State/Headphone Amplifier/Wi-fi Audio Streamer/USB/SPDIF/Optical Inputs for House Stereo – House Leisure Improve (2.5mm)


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Value: $2,499.00
(as of Jan 11,2022 13:59:35 UTC – Particulars)

Product Description

ifi audio logoifi audio logo

iFi was born in 2012 with one purpose in thoughts: to provide ‘ultra-fidelity’ audio merchandise that push the sonic envelope while nonetheless priced throughout the mainstream.

iFi audio is underneath our guardian firm, AMR, Abbingdon Music Analysis, which designs and produces top-end luxurious audio merchandise. AMR noticed in 2010 that buyer demand for wi-fi and transportable headphones was increasing as the entire audio dynamic was altering. Thus, iFi was launched.

iFi affords small however prodigious private audio merchandise because of the superior data of AMR’s know-how. At present, we’re happy with our British (and worldwide) roots. We proceed to design and produce over 35 completely different merchandise. We’re headquartered in Southport, UK with distribution together with retailers equivalent to B&H and etailz with manufacturing abroad.

We supply components from all over the world from producers together with AMOS (UK), GE Valves (USA), WIMA (Germany) and TDK (Japan).

iFi audio Pro iDSD with a pair of headphonesiFi audio Pro iDSD with a pair of headphones

Why do you want a DAC and Amp?

You probably have top quality or hi-fidelity headphones you will want some energy within the type of an amplifier to drive them to their true efficiency potential. You’re additionally going to wish an distinctive exterior HiFi Digital to Analog Converter (DAC) to course of your music information in excessive decision to reinforce your expertise even additional. The DACs in a smartphone, laptop, pill or audio participant in the marketplace should not designed for processing top quality sound. iFi audio has developed prime of the road merchandise to satisfy the varied wants and preferences whether or not you might be an on a regular basis listener or an skilled audiophile.

Professional iDSD Desktop DAC

There’s no flawed method to get pleasure from your music so long as you’re having fun with it, so we’ve created the Professional iDSD reference grade DAC and amp combo to be the centerpiece for no matter strikes your temper. When comfort issues, stream out of your favourite companies like Spotify, Tidal, and Qobuz over WiFi for as much as 24 bit / 192 kHz excessive decision streaming audio. For the last word in hi res audio join your PC, laptop computer, pill, digital audio participant, Android, or iPhone (with Apple Digital camera Connection Package, not included) to the excessive pace USB 3.0 enter for native playback of all codecs, together with FLAC, WAV, PCM, DSD and even MQA decoding. The micro SD TF card slot and USB A inputs allow you to join your exterior library, and you may run a community usb drive via the built-in ethernet port. Mud off your CD assortment and plug in your DVD participant by way of the SPDIF optical toslink jack to rediscover previous classics. On the again, RCA jacks and a balanced 3 pin XLR output connection work straight with your own home audio amplifier or receiver permitting the Professional iDSD to perform because the preamplifier in your house audio. When speaker listening isn’t an choice, the built-in headphone amplifier will drive your favourite pair of headphones with ease as you take heed to your favourite beats. Select a filter from one in every of 5 choices or apply DSD Remastering to dial within the good sound signature, and change between strong audio amplifier or tube audio amplifier on the fly for simply the correct amount of heat. Irrespective of the best way you pay attention, that is the one digital audio converter you want in your house.

Front View of Pro iDSDFront View of Pro iDSD

We consider {that a} product as feature-packed because the Professional iDSD deserves to have a superb trying, readable, properly embedded show. OLED was the one reply. Such a show gives a real black color and appears nice. Its objective is to offer you all the important thing playback information you want when utilizing the Professional iDSD. These are operation mode (PCM/DSD), present pattern fee (44kHz, 45MHz and so forth.), Bitperfect/filtering mode, Base pattern fee and presently used enter.

Back View of Pro iDSDBack View of Pro iDSD

We use top-of-the-line and unknown tubes – Common Electrical 5670. Additionally simply as necessary is the circuit design. In contrast to different amplifiers which have the identical circuit and simply change in/out the tube part, the Professional iDSD (together with Professional iCAN) is the very first of its variety that has two particular person enter circuits; one tube and one Stable-State. This ends in the ‘greatest sonics of each worlds’ as a result of the sign path is the shortest and there’s no compromise to ‘shoe horn’ the tubes into an already present solid-state circuit. There are two tube settings: Tube and Tube+. The Tube+ place reduces total loop-gain and thus unfavorable suggestions to the minimal. This offers a unique sonic perspective between the tube’s pure harmonics and transient efficiency.

Top View of Pro iDSDTop View of Pro iDSD

Let’s concentrate on the Professional iDSD’s enclosure. This machine is similar dimension because the iFi audio Professional iCAN and each merchandise look very related. The enclosure is made out of plane grade aluminium and its major objective is to dissipate warmth from the gadgets inside as they are going to get sizzling when powered on. In an effort to additional enhance on this, the chassis has many venting holes on its sides and on prime. These align in a pleasantly rounded form with a magnifying glass with a pair of fabulous classic JAN GE5670 valves beneath. (Fast word – these class act valves are actually reserved ONLY for our Professional sequence merchandise however that’s one other story). Anyway, we reckon that the Professional sequence chassis appears very cool.

Pro iDSD back with connections plugged inPro iDSD back with connections plugged in

All incoming DC is transformed to a high-frequency waveform then rectified and filtered by a choke enter capacitor filter. This produces a first-level DC bus from which all additional voltages are derived. The circuit additionally generates a galvanically-isolated energy provide voltage for the USB enter circuitry.

The digital part is powered by a financial institution of ‘Tremendous Capacitors’ totaling 6.6 Farad (6,600,000uF). Particular person low-noise TI LDO Regulators with native LC filtering present the ultimate low-noise energy for all particular person digital sections; a complete of six particular person regulators cowl Clock, S/PDIF Enter and the DAC’s digital part. For the analogue stage (particularly the tubes) larger voltages are wanted.

The entire stage successfully operates on a 60V rail providing huge potential dynamic vary.

Front View of Pro iDSDFront View of Pro iDSD

OLED show

Back View of Pro iDSDBack View of Pro iDSD


Top View of Pro iDSDTop View of Pro iDSD

Easy and slick

Pro iDSD back with connections plugged inPro iDSD back with connections plugged in

Noise filtered

MQA LogoMQA Logo

MQA Appropriate

Take heed to MQA straight out of the field. For MQA tracks, merely connect with Tidal (in your laptop) and verify the choices to stream MQA.

Quad DACQuad DAC

The Fab 4

The ‘fab 4.’ Quad ‘stack’ of Bit-Good DSD and DXD DACs by Burr-Brown. The ‘interleaved’ configuration means as much as eight pairs of differential indicators can be utilized and combined, equal to 4 pairs of indicators per channel. An unique design idea that’s much more tough to implement.

Crysopeia LogoCrysopeia Logo

Crysopeia FPGA Digital Engine

A primary! The Professional iDSD brings studio-grade DSD1024 to a wider viewers. For the DSD1024, if the MultiBit DAC is one half of the ‘coronary heart’ of the Professional iDSD’s digital engine, then the opposite half is unquestionably the Crysopeia FPGA. That is the place we consider FPGA excels, by dealing with the remastering duties to realize the DSD1024 audio format.

In reality, the Professional iDSD can deal with all audio codecs as much as DSD1024 or PCM 768kHz with user-selectable digital filters.

Global Master Timing LogoGlobal Master Timing Logo

World Grasp Timing

For all inputs knowledge is distributed to the Reminiscence Buffer. Right here it’s de-jittered to eradicate any transmission of supply jitter to the DAC output. The info from the Reminiscence Buffer is additional re-clocked by the low-jitter World Grasp Timing clock, which additionally drives the X-Core 200 and FPGA.

Wireless Playback graphWireless Playback graph

Wi-fi playback

Multi-talented! The Professional iDSD can hyperlink straight hyperlink to a router for on-line music playback. With LINKPLAY WiFi/community playback, built-in Spotify and Tidal, and vast protocol assist for 32-Bit/192kHz and DSD64, the Professional iDSD may be additionally used with out a pc to stream audio.

Galvanic IsolationGalvanic Isolation

Galvanic Isolation

This is without doubt one of the ‘holy grails’ of laptop audio. All inputs are galvanically-isolated (together with USB). This is similar stage of execution as discovered within the AMR DP-777 Digital Processor. The USB enter part has its personal separate energy administration system with a number of regulators and filtering working from the galvanically-isolated voltage generated to energy this part.

Output LogoOutput Logo

Valve or Stable-State output

The amplifier audio circuit is fully-discrete, fully-balanced with both tube or J-FET enter switchable, bipolar second stage and MOSFET-buffered bipolar Class A Energy stage. The ensuing circuit could also be greatest described as a ‘tri-brid’ the place every system is used to best sonic benefit whereas minimising any drawbacks. Moreover, the circuit is pure DC coupled to keep away from utilizing any sonically-degrading coupling capacitors.



The brand new XMOS XU216 X-Core 200 Sequence 16-Core processor has a most of two,000 MIPS (two billion directions per second) calculation energy in dual-issue mode as a USB interface. All-digital processing is Bit-Good, with out using ASRC or up-sampling except digital filters are explicitly chosen. It might decode indicators from all Inputs, from USB (as much as 768kHz/DSD512), AES/EBU or S/PDIF (as much as 192kHz/24Bit) andWifi/Community/Mass-storage (as much as 192kHz/32Bit).

Close up front view of Pro iDSDClose up front view of Pro iDSD

Quantity management:

Balanced (6-gang) Alps potentiometer, motorised with IR distant controlXLR/RCA outputs may be chosen as fastened stage or adjusted6.3mm headphone jack is at all times adjusted

Different Capabilities:

Varied digital and analogue filters may be chosen for DSD and PCM as much as 384KHz

Tech Specs

Pattern charges:

PCM as much as 768kHz

DSD as much as 49.152MHz (DSD 1024)

DXD and double-speed DXD (2xDXD)


USB (required for DSD, DXD and pattern charges above 192KHz)

AES3 (XLR – single hyperlink)

S/PDIF (coaxial/optical combo)

BNC multifunction (S/PDIF in or sync enter)


Balanced XLR at 4.6V (+15.5dBu – HiFi) or 10V (+22dBu – Professional)

Single-Ended RCA at 2.3V (HiFi) or 5V (Professional)

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

Headphone Output Impedance:

Single-Ended (S-BAL): < 1Ohm SE

Balanced: <2 Ohm

WiFi STREAMING – All managed from the palm of your hand by way of an app, select a wi-fi connection to stream your favourite tunes from Tidal, Spotify, Qobuz – the record is infinite. Take it up a notch by utilizing a wired Ethernet connection to play from a router or NAS (Community Connected Storage). Or calm down with AirPlay to get pleasure from playback out of your iPhone, iPad or Mac
POWERFUL – Our balanced headphone amp outputs as much as 4 Watts of energy and can drive a variety of headphones. Connections for six.3mm (1/4″), 3.5mm TRS, and a pair of.5mm TRRS balanced IEMs
MUSIC YOUR WAY – Choices embrace the flexibility to pay attention in solid-state, tube or tube+. We’ve got additionally added digital filters so as to add taste to your listening, such because the GTO filter, Bit Good, Bit Good+, Apodising, and Transient Aligned. Remaster any observe (excluding MQA) to DSD 512 or DSD 1024. All there so that you can customise you listening expertise
MULTIPLE CONNECTIONS – All inputs (together with USB) are galvanically remoted and the USB enter is self-powered, femto precision clock, S/PDIF Toslink and Digital Coax, BNC, AES XLR, USB A and micro SD TF for exterior storage

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iFi Professional iDSD Desktop DAC/Tube/Stable State/Headphone Amplifier/Wi-fi Audio Streamer/USB/SPDIF/Optical Inputs for House Stereo – House Leisure Improve (2.5mm)


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