Stereo_Electronics 0 Report post Posted February 6, 2014 (edited) So, what's in an iDAC? some have asked. Well, on the left-hand side, it is AMR's Asynchronous/Jitterless Lite USB module. One the right-hand side, the dac and headphone amplifier... The DAC directly drives the RCA Sockets without any additional electronics, plus it drives the analogue volume control and headphone Amplifier. Quite a purist approach for this type of product, where others often pass the line out also through the headphone amp and volume control without bypass. The headphone Amp can output > 3.3V and has less than 1 Ohm output impedance and 110dB signal to noise ratio at 2V RMS. Therefore, the DAC's dynamic range is fully-utilised, so the Headphone out can be used as Line out with volume control while retaining the overall superlative sound quality. This is the iUSB Power Circuit board... As it was so well liked, let's show another bit "under yeah olde bonnet". Note how in the iUSB the plug-top ultra low-noise SMPS powers a lot of internal circuitry. The already quite clean DC from the SMPS then goes through a LC noise filter which starts filtering at 150Hz and filters around 90dB at the common SMPS switching frequencies around 50KHz. The filter is effective well past 100MHz. This eliminates any switching noise and RFI dropping it well below -150dBV with our low-noise SMPS. After that filter we have a so-called "super-regulator" with a lot of trickery for very low-noise. Key is the Precision Voltage reference that is driven by a Constant Current Generator for maximum isolation from any supply noise. Often we get asked: "What exactly is inside those iFi Units?". It's not like we are shy or want to hide things. But taking really good looking Photos is not so easy and we have other work to do. But we can "lift the skirt" a little and "show some leg". Here is one of our test shots of the PCB for the iCan Headphone Amplifier... The iUSB with some quality brands: Bel Canto uLink USB-S/PDIF Converter | AudioStream Schiit Audio Modi USB DAC | AudioStream NEWS: Meridian Releases The Explorer Pocket-Sized USB DAC iFi Audio multiple product reviews: Trio of Goodness Sound and Vision magazine reviews iFi Enjoy The Music on the iFi Trio Review by monostereo Review y tuishao.net [Chinese] iFi Audio a new Hi-Fi statement | True Fidelity Performances http://www.theabsolutesound.com/articles/first-look-ifi-idsd-nano-dacheadphone-amp-ican-nano-headphone-amp/ http://www.sirpierre.se/2014/03/dagens-test-ifi-audio.html The iFi Schiit experience iUSB Power reviews iFi Audio iUSB : Clean Power Clean Sound | Earmass iUSB review in Head-Fi Positive Feedback Online - iUSB Power a Writers' Choice 2013 iDAC reviews Confessions of a part-time Audiophile: Review of the iDAC Positive Feedback Issue #66 Mono and Stereo High-End Audio Magazine: i-Fi iDac test review hdphonic.com review on iDAC iPurifier reviews http://www.hdphonic.com/en/hardware/ifi-ipurifier/ iCAN reviews iCAN Amp Review: A New Amp that Gives You More: More Bass, More Soundstage and More Detail Positive Feedback: Issue 66 review of iFi MikeShouts reviews the iFi Audio iCAN Musical Musings reviews the iCAN Gemini USB cable reviews Adventures in HiFi Audio Pictures: Courtesy of iFi Audio Facebook page iTube unboxing by Mono&Stereo: [YOUTUBE]ZqsnkebIZQU[/YOUTUBE] IFI Audio 7 days Money Back Guarantee All items, package, accessories and manual must be as per new set Product must be in brand new condition with no physical damages, cosmetic damages or malfunctioning hardware Original receipt must be presented upon refund Please contact us beforehand and we’ll call back to inform if refund can proceed Not applicable for IFI Audio products purchased with bundled headphone/earphone. For bundle of IFI Audio product, only refund of full bundle is accepted. All terms and conditions must be fulfilled for any refund of items. Edited April 17, 2014 by Stereo_Electronics Share this post Link to post Share on other sites
Stereo_Electronics 0 Report post Posted March 6, 2014 The iPurifier does one job and one job only; it cleans and filters audio + power at the end of the digital chain; just prior to the digital signal entering the DAC. Simply place it between your USB cable and DAC, and you'll experience life-like audiophile sound. The iPurifier makes such a radical difference that there's simply no comparison to be made to a computer-audio setup without one. If you're serious about great sonics, the budget-priced iPurifier is a must. How confident are we that this little device will change the way you experience computer audio? We back it up with our 7 days 100% Money-Back Guarantee. Those of you who has been waiting, please drop by to try them out. You can also visit our website for more information on The iPurifier iFi iPurifier - Every USB DAC Needs One iPurifier in action at the top (at the iDAC entry port). Share this post Link to post Share on other sites
Stereo_Electronics 0 Report post Posted March 13, 2014 The "mini rack system" for housing iFi components, fully modular and easy to assemble, exceptionally tidy and organized set up, and definitely compatible with Nano series, that’s what iFi Audio iRack can offer. Receive a FREE iRack worth $129 for any purchase of the following iFi Audio Bundle Promotions: iCAN + iTube iCAN + iDAC Valid from 13th till 31st March 2014. Photo credit to iFi Audio. Share this post Link to post Share on other sites
Stereo_Electronics 0 Report post Posted April 17, 2014 A short but descriptive post of iFi Products - Thank you Daluso! (Daluso-audio.nl) iFi Audio - A new Hi-Fi Statement! " iFi’s gear in your sound system you will instantly feel very happy and highly satisfied that you spend only ‘a few bucks’ on this very nice sounding equipment....Without any doubt the unique iUSBPower Supply is one of the ‘must haves’ for everybody who is involved with USB audio applications.....Being a more vinyl and compact disc focussed music lover my personal favorites are the iPHONO, iDAC, iTUBE and iCAN. " iFi Audio a new Hi-Fi statement | True Fidelity Performances Share this post Link to post Share on other sites