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$350CAD HERUS: Asynchronous USB Audio 2.0, 24bit 352.8Ks/S, DXD and DSD64/128, 2.4VRMS Headphone DAC - Page 11

post #151 of 308
Quote:
Originally Posted by MikeyFresh View Post
 

The Wireworld USB cable design is in large part addressing the vulnerability of the data line to be negatively affected by noise present on the power line, when those two conductors are in close proximity. That noise comes from the computer. For super detail oriented power filtering devices, take a look at the SOtM filters made for SATA connections, or even the computer's fan. Those are intended to choke the noise before it ever leaves the computer on the USB line. 

 

I want to try a Wireworld USB cable at some point, but I haven't chosen which one just yet.

 

Power quality definitely influences the behavior of the clocks. Even in high-end disc spinners or DACs, careful attention to the quality of the local power supply of the clock circuit can make a huge difference between two players using the very same input receiver chip, where one has a poorer implementation than the other. Those clock circuits need power to operate, the cleaner that power is and the more rigidly regulated it is, the better the clock performs.

 

Clocking involves the use of crystal oscillators, the way they work is a function of the known precise/stable resonant frequency of the crystal (typically quartz). Both EMI and RFI are (invisible to human sight) enemies that pass through and vibrate the crystal in an abnormal fashion, causing jitter.

 

Borrowed from a German University authored paper presented at the Microwave Symposium Digest in 2010:

 

The high frequency (HF) crystal oscillator is susceptible to electromagnetic interference (EMI), which affects the stability or accuracy of reference frequency standards. The effect of radiated EMI can be both deterministic and random in nature that shows up as jitter in the time domain and phase noise in the frequency domain.

 

So not a snake oil type of product in that they are purporting to attenuate EMI by 5 dB, whether that is very/slightly/or not audible with any given DAC is of course open to each individual's personal take.

 

I'd be curious if you have a try and buy scenario available with the iPurifier, what you think, especially with loudspeakers where the stereo image is greatly enhanced, to me the single biggest difference. The sound stage becomes both larger and more precisely focused when used with the Herus, and that is a function of a blacker quieter background.

 

Please post your findings if you get a chance to audition the iPurifier with the Herus. It won't take the form of "brilliant with/sucks without", however in my experience there is a noticeable improvement.

Yep, the larger soundstage was what I picked out when I attached the iPurifier.

So far, it has proven to be rather enjoyable as some impactful bassnotes in some of my tracks do not bang so closely in my head anymore so its not as fatiguing.

I was actually expecting it to affect things other than just the noise, which to my surprise did not - probably because I had never believed in such devices.

Judging from your explanation, I guess it makes sense for the sound signature to not get altered as drastically as I had anticipated it to be. 

 

Well over here, iFi has a 7-day refund policy so customers can return it if they don't like it. 

 

I have 3 different setups that are hooked to this computer of mine,

- a Xonar STX / Audioengine P4s (for loudspeakers),

- Bifrost/Lyr (for headphones),

- and now Herus (for IEMs). 

 

For now, more listening :) 

If I decide to keep it, I may try out your suggestion at later point and figure a way to introduce the iPurifier into my loudspeaker chain.


Edited by delancyst - 3/20/14 at 8:58am
post #152 of 308
Quote:
Originally Posted by tomscy2000 View Post
 

 

Nice shot! :beerchug:

Thank you :) 

 

For anyone interested to try out this setup, the chain consists of

- Foobar ASIO on W7

- Wireworld Starlight 7 USB (cheapest version that has the insulated power/signal conductor design) 

- iFi iPurifier

- Herus DAC 

- no name 6.3mm adapter (to be replaced with a Furutech F63)

- Fitear MH335DW '001' cables

post #153 of 308

Another device with this sort of filtering built-in is the Vaunix Lab Brick, a 4 port USB hub that also adheres to the 90 Ohm impedance spec.

The Empirical Audio Short Block, and Ultra Fi Aubisque, are direct competitors to the iPurifier, but at double the price.

All of these devices work at a range of frequencies well above the audio band, in the MHz and GHz regions.
Not mandatory with the Herus, but it adds refinement and is certainly worth a look with it or any other bus powered DAC. In my experience even non bus powered DACs also benefit.


Edited by MikeyFresh - 3/24/14 at 5:52pm
post #154 of 308
Quote:
Originally Posted by delancyst View Post
 

Thank you :) 

 

For anyone interested to try out this setup, the chain consists of

- Foobar ASIO on W7

- Wireworld Starlight 7 USB (cheapest version that has the insulated power/signal conductor design) 

- iFi iPurifier

- Herus DAC 

- no name 6.3mm adapter (to be replaced with a Furutech F63)

- Fitear MH335DW '001' cables


Similar to what I'm running:

- JRiver Media Center 19 ASIO

- Pangea USB-PC

- iFi iPurifier

- Herus DAC

- Furutech F 63(G)

- various headphones, or connection to Hi-Fi system loudspeakers

post #155 of 308

 

iPad2 running the Onkyo HF Player app, digital output to the Resonessence Labs Herus via Apple Camera Connection Kit and Chord Co. Silver Plus USB cable = high-resolution audio.

 

A co-worker friend's LG G2 smart phone will do this same thing natively, with it's supplied/free music player app, only a $5 OTG cable is needed, and .flac media files up to 24/192kHz.


Edited by MikeyFresh - 3/22/14 at 1:52pm
post #156 of 308
Quote:
Originally Posted by MikeyFresh View Post

 
Hopefully you have the Ultrasone version which by the looks of it will fit. I'm not sure the extender bit on the standard version is long enough though.

Will you please post your results? happy_face1.gif

I am thinking about replacing the Oyaide 3.5mm plugs I have with newer versions, however I don't want to go to the trouble of ordering them if they won't fit the F 63!

Specifically, if you can somehow use the pictures to determine if you have the Ultrasone version or not, and whichever version you have, does it fit the F 63?

Please note if you are able to try the straight, or both the straight and right angled Oyaide plugs, that would be of huge help to me in deciding what to do (or skip) on my end.

Thank you.

@MikeyFresh
 - I just got my hands on the F63 today and they mate perfectly. smily_headphones1.gif
Here are some pics of the F63 connected with the newer version Oyaide Str., fit is secure (no wiggle), looks like they are made for each other.
I'm still waiting on a custom IEM cable that will have a Rightangle Oyaide. 
Now that is left is to get home to try it with the Herus. 






Edited by delancyst - 3/23/14 at 7:23pm
post #157 of 308

Thanks very much for that, it looks like I can safely get the newer versions of those Oyaide 3.5mm plugs but I don't necessarily need the Ultrasone version for it to fit the F63.

 

I'm glad it worked out for you, the F63 really is the nicest 1/4" adapter made from what I can see, phosphor bronze is used instead of the typical and less conductive brass, and of course the Furutech alpha cryogenic and ring demagnetization process.

 

The Herus is a really great sounding unit, I feel it deserves this level of attention to detail in extracting the very best performance it can offer.


Edited by MikeyFresh - 3/23/14 at 7:42pm
post #158 of 308
Quote:
Originally Posted by MikeyFresh View Post

Thanks very much for that, it looks like I can safely get the newer versions of those Oyaide 3.5mm plugs but I don't necessarily need the Ultrasone version for it to fit the F 63.

I'm glad it worked out for you, the F 63 really is the nicest 1/4" adapter made from what I can see, phosphor bronze instead of the typical and less conductive brass, and of course the Furutech alpha cryogenic and ring demagnetization process.

The Herus is a really great sounding unit and deserves this level of attention to detail to extract the very most it can offer.

After trying out the standard Oyaide 3.5mm, I think the Ultrasone version would leave a gap all around since it has a slimmer profile.
I also think its safe to assume the RA plug would fit well too.
Yes I agree with you, it's a nicely machined adapter, didn't know about the cryogenic stuff until i read the box. Guess you get what you pay for. smily_headphones1.gif
post #159 of 308

Playing nicely...

 

post #160 of 308
Quote:
Originally Posted by MikeyFresh View Post
 

 

iPad2 running the Onkyo HF Player app, digital output to the Resonessence Labs Herus via Apple Camera Connection Kit and Chord Co. Silver Plus USB cable = high-resolution audio.

 

A co-worker friend's LG G2 smart phone will do this same thing natively, with it's supplied/free music player app, only a $5 OTG cable is needed, and .flac media files up to 24/192kHz.

 

I have to admit that despite having the Herus for 6 months now I never really got into it which was why it had taken me long time to review it. However tonight I thought I'd try the Onkyo HF Player loading up DSD files instead. Admittedly you'll have to buy the Onkyo pack to enable the DSD portion but it works really well with the Herus that I think I may be flipping my thoughts about the Herus.

 

 

I've flipped back 'n forth between the Onkyo HF player playing DSD vs the standard Music Player playing the non-DSD version of the same track - both methods still via the Herus and it's quite a noticeable difference (at least on the DSD album that I was playing...I've not tried others). I think I'll be raving about the Herus a lot more now in this kind of setup. In fact for me, I think this may be the only way for me to use the Herus going forward.

post #161 of 308
Thread Starter 
.
Edited by seeteeyou - 11/4/14 at 8:53pm
post #162 of 308

The LG G2 Android smart phone running it's stock music player app, connected to the Resonessence Labs Herus via a StarTech OTG cable and Pangea USB-PC.

No DSD support, but native PCM up to 24/192.

Interestingly, this arrangement will also drive the iFi iPurifier inline with no issues, but with the iPad2 + CCK and iPurifier the Herus had a problem staying locked for more than a second or two. The iPad did not display any text box message about insufficient power or unsupported device, but the Herus would continually lose it's lock with the iPurifier included in the chain. Not so with this Android phone.

 


Edited by MikeyFresh - 4/6/14 at 3:23pm
post #163 of 308
Quote:
Originally Posted by seeteeyou View Post
 

That's good news. What if we spend 500 yen for another app supporting DSD as well as DoP?

 

https://itunes.apple.com/jp/app/hibiki/id592396897?mt=8

 

Just subtle differences between two apps? Actually my hope is more about encouraging the author to work on DLNA/UPnP support so we could actually stream HiRes audio off wireless storage

 

http://blogs.yahoo.co.jp/a2capps


That DSD support is in the form of DoP, meaning they are one in the same as far as use of this app goes.

 

DoP means DSD over PCM, the DSD data is "packaged" as PCM.

post #164 of 308
Hello, I have a Herus on the way, and I use shure 535, which I understand cannot be used with the furutech f63 adapter. Does anyone have any recommendations? I may replace the shure cable as well, but still thinking about that.
post #165 of 308
Quote:
Originally Posted by nipponbiki View Post

Hello, I have a Herus on the way, and I use shure 535, which I understand cannot be used with the furutech f63 adapter. Does anyone have any recommendations? I may replace the shure cable as well, but still thinking about that.

You can get the F63-S(G). This one doesn't have the recessed part and is flush.
http://www.furutech.com/2014/03/12/8671/

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