iFi Pro iDSD Signature - Desktop DAC/Tube/Solid State/Headphone Amplifier NEWOpen box demo unit - comes with full manufacturer warranty. $3249 RetailSTANDALONE. STREAMER. DAC/AMP. ALL WITH THE X-FACTOR.The Pro iDSD Signature is our new reference-class flagship.ENHANCEMENTS TO SIGNATURE EDITION:Revised circuit design incorporates even more ultra-grade audiophile componentsTop-of-the-range iPower Elite offboard AC/DC power supply includedUpgraded power supply circuits – eradicates signal noise/distortionHand-selected and matched tubes in output stageNew aluminium remote controlTOP OF LINE DAC AND SO MUCH MORE.The Pro iDSD Signature is our new flagship reference class DAC and then some! The Signature edition builds on the strengths of the original, multi-award winning Pro iDSD.It continues to cater for those who love good music delivered at the highest quality.Use the Pro iDSD Signature as a standalone unit, a DAC/preamp, a network streamer and a headphone amplifier.A SIGNATURE STEP UPThe Signature takes the original Pro iDSD and pushes it even further towards perfection.The Pro iDSD Signature has:a sonically darker background and a punchier bassupgraded power -supply components to lower the overall system noise by 300%precisely matched NOS GE5670s tubesadded support for USB1.0 (PS4/PS5)a new aluminium remote controla top-of the range iPower Elite power supply includedSTACKED. WITH TECH.The Pro iDSD Signature uses a quad-stack DAC – 4 x DACs in an interleaved configuration – to deliver exceptional resolution.The powerful XMOS XU216 X-Core 200 series chipset processes incoming digital data and enables the Pro iDSD Signature to provide state of the art audio support – from MP3, 32-bit/768kHz PCM, DSD512, 2xDXD and full MQA decoding.Thanks to the Crysopeia FPGA Digital Engine the Pro iDSD Signature brings studio grade DSD remastering to a wider audience. It can upconvert PCM and DSD files to DSD512 and DSD1024.And all controlled from an app in the palm of your hand.E-TAILORINGThe Pro iDSD Signature, like its predecessor, takes sonic tailoring to the extreme.Listen to the your music to in solid-state, tube or tube+ modes, your choice, all at the flick of a switch.Our Crysopeia FPGA Digital Engine strikes again as it enables the Pro iDSD Signature to offer several options when it comes to digital filtering. The GTO filter adds gravitas and a new dimension, and while the Bit Perfect, Bit Perfect+, Apodising and Transient Aligned filters give you even more choices to tweak the sound.The discrete, fully balanced Class A amplifier stage offers adjustable gain.YOUR CHOICE. THE ONLY CHOICE.Stream wirelessly from Tidal, Spotify, Napster, QQ Music and moreUse Airplay to enjoy playback from your iPhone, iPad or MacGo wired via an Ethernet connection to play from a router or NAS (Network Attached Storage)Use DLNA network audio playback with smartphones, tablets, Windows/Linux computersConnect to a hard disc drive (HDD)Pop in a USB memory stick or SDHC cardAnd with a variety of headphone outputs – Single-Ended 6.3mm, S-Balanced 3.5mm and Balanced 4.4mm – the only choice is your choice.POWER CLEANS. ABSOLUTE.The Pro iDSD Signature, ships with our flagship iPOWER Elite.Coupled with the re-crafted power supply board which offers up to 100x lower noise, the music is buttery smooth.Within and without – we left no stone unturned in our quest for the cleanest, purest, power for the Pro iDSD Signature (same for Pro iCAN Signature too!)FEATURES:The Pro iDSD Signature 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 Pro iDSD Signature employs the new XMOS XU216 X-Core 200 Series 16-Core processor. All-digital processing is Bit-Perfect unless particular digital filters are explicitly selected.Upsampling to DSD1024 has previously only been available to a select few. The Pro iDSD Signature makes it available to a wider audience. The DSD1024 remastering is handled by the Crysopeia® FPGA and this is where we believe the FPGA excels.Data is sent to the Memory Buffer from all inputs. Here it is de-jittered to eliminate 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.With LINKPLAY™ WiFi/network playback, built-in Spotify and Tidal, and wide protocol support for 32-Bit/192kHz and DSD64, the Pro iDSD Signature can be also used without a computer to stream audio directly.Galvanic isolation is the ‘holy grail’ of computer audio.All 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.Unlike other amplifiers that have the same circuit and just switch in/out the tube section, the original Pro iDSD and now the Pro iDSD Signature are among the very first to have two individual input circuits – one tube (General Electric 5670 tubes!) and one solid-state.This results in the ‘best sonics of both worlds’.The 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.The 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.We’ve given the Pro iDSD Signature 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.The Pro iDSD Signature is packed full of premium components – a Japan Alps rotary volume potentiometer, audio-grade ELNA Silmic capacitors and a bank of Elna Dynacaps ‘super capacitors’.MQA (Master Quality Authenticated)MQA is an award-winning British technology that delivers the sound of the original master recording. The master MQA file is fully authenticated and is small enough to stream or download. The Pro iDSD Signature adopts MQA technology to receive and decode MQA audio and provide master-level sound.

iFi Micro IDSD Signature Portable DAC / Headphone Amplifier. Its a powerful amp in small packaging with battery. I used it on my headphone one as it needs quit a bit of power most DACs cant provide for best sound. Coated 800 pounds and goes about 750 new now . Barely used I can count how many times I charged it which is about five times. Upgrading so this is going as part of my spring cleaning .. Excellent condition almost new. And battery is in great condition because used so little bought about a year a go . Its proper dam/amp for high quality sound No returns can pick up if you live in London Review https://headfonics.com/ifi-audio-micro-idsd-signature-review/ Will only send with the royal mail insured. Tracked postage . No returns so make sure thats the dac you want.

iFi Micro iDSD Signature Transportable DAC and Headphone Amp Excellent condition, original owner, sounds incredible. All pictured parts included, RCA cables, USB data plug, USB charging plug, USB converter, silicone mat, optical converter, RCA caps, original boxes (just missing manual, bag, and rubber bands), 1/4 converter upgraded to one easier to pull. Took great care not to let the battery die, always keeping in the ideal range of 30-80% charge for longevity. Hardly traveled with the unit and ultimately use my desktop setup more, so decided to sell. Overall the sound signature is incisive, energetic, wonderfully detailed, fantastic punch and slam characteristics - a great partner to the Focal Clear and Arya Stealth. The bass boost toggle is especially handy and well implemented, many other bass boost implementations bleed too far into the mid-bass which makes it muddy. The DAC RCA-out is very good as well, comparing it against half a dozen (less expensive) DACs it is the clear winner. It runs simultaneously with the AMP section so switching outputs is not required. Both AMP plugs (4.4 and 1/4) work simultaneously so if you have headphones that work for both you can listen with someone else. Overall this is a fantastic DAC / Amplifier, at this, or any price point.

Excellent condition. It comes complete with all original accessories and packaging, plus a USB-A(f) to USB-C(m) adapter so you can plug it straight into a phone. All the photos are of this actual item.Any questions please feel free to ask._____ This is a premium model from the acclaimed British company Ifi. It has the sound quality and build you might expect from a table top model, but with battery power and a transportable footprint. It plays Hi-Res music files (up to 768 kHz with ultra-low jitter Femtosecond clock. Powerful enough to drive high end headphones. It can also be used as a preamp via RCA outputs.USB or S/PDIF (optical or electrical) inputsXBass switch (pure analogue bass boost)3D switch (widens the soundstage)Can decode MQA filesTwo headphone outputs, one 6.3 mm single-ended and one 4.4 mm Pentaconn balanced.Alternative digital filters available via firmware download.

iFi Micro IDSD Signature Portable DAC / Headphone Amplifier. Its a powerful amp in small packaging with battery. I used it on my headphone one as it needs quit a bit of power most DACs cant provide for best sound. Coated 800 pounds and goes about 750 new now . Barely used I can count how many times I charged it which is about five times. Upgrading so this is going as part of my spring cleaning .. Excellent condition almost new. And battery is in great condition because used so little bought about a year a go . Its proper dam/amp for high quality sound No returns can pick up if you live in London Review https://headfonics.com/ifi-audio-micro-idsd-signature-review/ Will only send with the royal mail insured. Tracked postage . No returns so make sure thats the dac you want.

iFi Micro iDSD Signature Transportable DAC and Headphone Amp Excellent condition, original owner, sounds incredible. All pictured parts included, RCA cables, USB data plug, USB charging plug, USB converter, silicone mat, optical converter, RCA caps, original boxes (just missing manual, bag, and rubber bands), 1/4 converter upgraded to one easier to pull. Took great care not to let the battery die, always keeping in the ideal range of 30-80% charge for longevity. Hardly traveled with the unit and ultimately use my desktop setup more, so decided to sell. Overall the sound signature is incisive, energetic, wonderfully detailed, fantastic punch and slam characteristics - a great partner to the Focal Clear and Arya Stealth. The bass boost toggle is especially handy and well implemented, many other bass boost implementations bleed too far into the mid-bass which makes it muddy. The DAC RCA-out is very good as well, comparing it against half a dozen (less expensive) DACs it is the clear winner. It runs simultaneously with the AMP section so switching outputs is not required. Both AMP plugs (4.4 and 1/4) work simultaneously so if you have headphones that work for both you can listen with someone else. Overall this is a fantastic DAC / Amplifier, at this, or any price point.

Powers on, untested

iFi Micro iDSD Signature Transportable DAC and Headphone Amp. Item have some scratches.work perfect