Wyred 4 Sound

ISO Recovery

$249 $299

With much success improving sonics with the original Recovery, we've been working hard to raise the bar again!

Saying that the Recovery is the cheapest and most effective way to transform your system would be an understatement and the ISO Recovery offers that level of performance again. There are many uses for such device in a USB path but the most tangible (and fun) experience is connected to the input of a DAC. Open the doors to a new level of clarity and noise floor that you've been dreaming about.

Some Q & A on the Recovery:

What is the ISO Recovery?
The ISO Recovery is an affordable, compact audio device that intercepts the USB signal between the DAC and computer to do two critical things:
1. Galvanically Isolate and provide cleaner power -with a pure DC upgrade option.
2. Supply an independently clocked source for the USB encoded data.
This "pre-conditioning" of the USB signal provides the DAC a much cleaner, consistent, truer signal resulting in noticeably improved audio fidelity and much lower noise floor.
What can I expect to hear differently?
You will notice a more focused and a better-placed sound stage with blacker backgrounds. Similar to the Femto upgrade on our DAC, we found that the much better timing allows for more accurate bass and finer details in the micro-dynamic regions. At first, this might seem like a more ‘forward’ sound but what you are hearing is more of what you have not heard in the past. As the Recovery breaks in, it will continue to improve. The ISO Recovery adds more depth, texture and engagement.
I already own a Wyred 4 Sound DAC with Femto clock. Will the Recovery still benefit me?
Absolutely! The two devices do separate things. The clocking in the DAC has no control over when or how it receives its signal from the sources. The Recovery works to greatly improve the incoming signal before the DAC receives it, so perfecting that allows the DAC to shine even more. The internal clock accuracy and jitter elimination of the DAC can mitigate some of the input jitter, but is no replacement for correcting it beforehand providing a better stream of that data. These go hand in hand and offer compounding effects.
What is the key difference between the Recovery and other audio USB 'filtering' devices?
The design and thinking behind the Recovery is based on previous successes, and was built from the ground up to be superior in addressing timing and power inadequacies. Naturally, we learn from our previous designs and improve with progression so we can offer higher level products over time. 
Will I need to install drivers? Is it plug and play? 
No drivers needed. Just insert it between your computer and DAC, plug power into the wall and you're good to go.
Will I need yet another USB cable?
No, we assume you will use your existing USB cable. We supply a short (6") cable and a USB A to USB B adaptor (your choice) intended to go from Recovery to DAC.
Usage: Simply plug your USB cable from your computer/source into the Recovery and the included USB cable from the Recovery to your DAC. Then power the Recovery with the supplied power supply from the wall. Plug 'n play!

This upgrade is a "no brainer" and is the most cost effective improvement we've experienced! Be sure to click the "Reviews" tab for unbiased, real-world impressions of the original Recovery-to be updated soon.


  • USB B input / USB A output
  • Ultra-quiet internal power supply (less than 13 μvolts)
  • Isolated 5V power output
  • Galvanically isolated USB ports (input to output)
  • Small, lightweight aluminum case with laser engraving
  • 5 year warranty
  • Included in package: ISO Recovery unit, 6" USB A to B cable, 5V external wall-type PSU


  • 2.6" x 1.7" x 0.9" (L x W x H)
  • DC tested safe range: 5v 
  • DC plug dimensions: 5.5mm x 2.1mm, positive polarity
  • Max supplied output to device: 500mA

ISO Recovery manual 1.0.pdf


"In less than five days my attitude concerning the Wyred 4 Sound Recovery was transformed from assuming it to be just one more USB toy to understanding and thoroughly appreciating the Recovery’s positive and valuable strengths to elevating" 

    AUDIOAFICIONADO.ORG                                              READ FULL REVIEW

"The bass and the mid bass were better defined with the Recovery and more dynamic sounding. The midrange’s focus was sharper and appeared to move slightly forward in the soundstage compared to the sound with no Recovery. I felt that the highs had better definition that was probably helped by a perceived reduced noise floor. The soundstage appeared wider with the use of the Recovery providing a lager sonic presence to the sound. I was unable to find any negatives to attribute to the contribution the Recovery made to my Analog DAC; it just improved what I was hearing."

     AUDIOSTREAM                                                             READ FULL REVIEW

"The Wyred4Sound Recovery seems to matter more than one’s chosen USB cable or playback software – a most effective antidote to digititus and therefore a 100% essential piece of the puzzle. For yours truly, when listening for pleasure, the Recovery must be part of the digital audio chain of command."

    DIGTAL AUDIO REVIEW                                                READ FULL REVIEW

"More sparkle and more air. More depth and smooth sonics. More openness and more analogue sound….With the W4S Recovery I forget to analyze the sound, instead I enjoy the music."

   MONO AND STEREO                                                     READ FULL REVIEW 

"Those of us invested in USB must accept that for reasons not crystal to us non engineers (and apparently even bona fide IT engineers), well-executed fixes like Wyred4Sound's Recovery still matter."

     6 MOONS                                                                       READ FULL REVIEW

"Recovery is providing a level of resolution I have not heard before in my system. Literally I am hearing stuff on tracks that I suspect the original mastering engineer would have removed had he heard it. No brightness, just more detail, clarity and more of the more which I seek. For the price, or even a significantly higher price the Recovery is a no brainer."


"I have got to say, the more I listen the better the Recovery gets. First of all, DSD files seem to smooth out and open up very nicely. However what it does to PCM files, in my system, is just staggering. I would not have thought it possible."


"Between the RUR [Recovery USB Reclocker] and the [Uptone Audio] Regen, in my opinion, the RUR is in a class by itself…Where the Regen enhances the dynamics of the soundstage, the RUR takes it further and the first time I actually heard the RUR at listening volume, I almost fell out of my near field chair. The RUR has my highest recommendation. I am so enthralled with its rendition that I am purchasing a second one."