The DIY'rs Cookbook

Jun 11, 2016 at 3:28 AM Post #511 of 1,974
Excellent news!
 
I do hope I'll be able to use the built in 2nd ethernet port as a dedicated AOIP feed.
I'll know once the box shows up and I get into the configuration mode to tie all 3 bits of s/w together.
 
JJ
 
Jun 12, 2016 at 2:53 AM Post #512 of 1,974
What and how do we know what IS ‘Better’?
or
It’s all in our heads, or is it?

 
Part 20             Choke Points revisited

Choke Points - CP’s revisited
I bring this topic up again, mostly because of my recent experiments with the Akiko sticks and the USB experiments.  These changes highlighted the observation that sometimes CP’s can be found in the most unlikely of places.  And these last 2 experiments dealing with reducing the noise floor of the ground and cleaning up the digital signal path have resulted in significant improvements in the overall SQ.  This further reinforces my notion of “a cascade effect where EVERYTHING can start to make a difference”.  Only now the degree of improvement isn’t slight nor difficult, at all, to determine if it is ‘Better’.
 
Back in Part #5 I wrote this…
“I’ve been using the term ‘choke points’ but haven’t explained what I mean, until now.
This term refers to any portion of a system that limits the conversion from electrical power, to signal, to acoustic power in an audible way.  I have ‘discovered’ several of these limiting aspects in my system to date, but only by negation.  
By that I mean as they were removed the overall SQ makes a sudden and obvious improvement.  One that is undeniable (well over the ≈10% threshold) and is so gratifying that there is no doubt as to its being “Better”.”

 
And to make things even more ‘complicated’ there does seem to be a threshold that needs to be crossed before these changes become evident to the point of undeniability.  
 
IOW if the system is ‘clogged’ with ‘choke points’, unless you ameliorate a major clog there is a good chance you may not hear any change, mostly due to masking/smearing of acoustical energy where it doesn’t belong.  This is a common observation made by many who try only one ‘upgrade’ like a power cable or interconnect cable, and hear no differences.  Of course there is the distinct possibility that the attempted ‘upgrade’ simply wasn’t up to the task, (it wasn’t a sufficiently better cable etc.).
 
But once one of these ‘choke points’ is found and improved, and it will be VERY obvious when this happens, it will be very hard to deny that not only was there a change, but it was ‘Better’, or not.
“But once this threshold is reached it can initiate a cascade effect where EVERYTHING can start to make a difference.  However initially this can lead to further confusion and frustration once a change IS noticed, because now determining if it is really an improvement, or just a change, becomes the deciding factor instead of just IS there any change.
This is, at least in part, why this series of articles is being presented.  To help with knowing if a change truly is “Better”.”

 
And to a certain extent CP’s can be considered much like veils, in that you really don’t know they are in place until AFTER they have been removed.
And then when their absence is obvious, and the results are most welcome, our very familiar music can be enjoyed as if hearing it for the first time, again.
 
This trait of hearing our music as if anew seems to be a common enough indicator that can be associated with CP removal, and when it becomes evident that things have changed, and definitely for the better, that another major choke point has been ‘fixed’.
 
And sometimes even simple things can yield very significant results, such as cleaning the interconnects, or making sure the ac power delivery is optimized.  These sorts of maintenance items which can all to easily be overlooked and neglected, which when addressed can yield substantial sonic improvements, and are most welcome.
 
And lastly another MAJOR CP has surfaced, namely in optimizing the digital signal path from the computer, music server, etc. to the DAC.  It seems that ethernet can be used quite effectively and it can provide a much more ‘robust’ signal path with less noise and signal degradation.
Which leads to hearing our music as if anew, again.
It also seems to be a Major source of SuperGlue action.  I’ll know in a few days for myself.

JJ
ps I’d forgotten how sharp I kept my pocket knife, but those ropes holding me fast to the mast were no match, and all to quickly became a pile of tatters at my feet.  My wallet weeps, but my inner audiophool geek is leaping for joy. 
atsmile.gif

 
End Part 20              
 
Next up         Spikes, Overshoot, and Wonderful.
 
Jun 12, 2016 at 10:41 AM Post #513 of 1,974
Can't wait for your impressions JJ. I feel if people took care of this transport ahead of time as a first thing to tweak necessity (from here out since this seems to be a new revelation in digital audio) then perhaps some of the necessary tweaks to make a system better wouldn't be necessary or needed down the road. I feel the term choke point may go about USB implementation too lightly, the term sabotaging might be better used as it seems to effect mid tier DACs as much as top tier DACs both old and new.

Of course the dac makers didn't help by sticking usb in all their equipment (to help sales with convenience) but in doing so I feel other ways of transport was overlooked when a simple 100 base network had been available long before usb. Chalk one up for the pro audio world
 
Jun 12, 2016 at 12:49 PM Post #514 of 1,974
Well listening to music with the RedNet 3 instead of the USB based ddc's sounds more like a roadblock has been removed.
 
Jun 12, 2016 at 3:10 PM Post #515 of 1,974
So JJ, when you get your RN3 just get used to the auditory revelation that it brings to the ears.
 
Then after a while, try another tweak that to my ears at least, lifted the SQ a little bit more.
 
Yes your very own Akiko Triple AC stick adapted to plug into the rca of both the RN3 and the Mutec.
 
I'll let you be the judge on this one and see if you hear any improvements! 
wink_face.gif

 
Jun 12, 2016 at 5:22 PM Post #516 of 1,974
It seems that what the RedNets bring to the Digital Audio table is the ability to let whatever DAC is connected to it, perform to it's peak without limitations.
 
Jun 12, 2016 at 10:59 PM Post #517 of 1,974
Can't wait for your impressions JJ. I feel if people took care of this transport ahead of time as a first thing to tweak necessity (from here out since this seems to be a new revelation in digital audio) then perhaps some of the necessary tweaks to make a system better wouldn't be necessary or needed down the road. I feel the term choke point may go about USB implementation too lightly, the term sabotaging might be better used as it seems to effect mid tier DACs as much as top tier DACs both old and new.

Of course the dac makers didn't help by sticking usb in all their equipment (to help sales with convenience) but in doing so I feel other ways of transport was overlooked when a simple 100 base network had been available long before usb. Chalk one up for the pro audio world

I too am looking forward to exploring this method of digital audio transfer to my DAC.
My spidey sense has been ringing off the hook sense I first stumbled upon this info, thanks to you and Muziqboy
I figure this is a prelude to getting a Jggy and spoon feeding it a 'tweako' digital feed…
 
 
As I see it the manufacturers HAVE to offer ease of installation and use.
USB is ubiquitous and so, despite it's limitations, is and will remain widely used.
 
For us Audiophools who are willing to suffer the pangs of having to deal with the funkiness of top end gear (setting up a whole nuther network just to feed a dac, for instance) we are willing to go to untold lengths to 'find out' and then hopefully revel in the acoustic bliss…
It's what we do…
atsmile.gif

 
Besides there is no 'standard' ethernet implementation for AOIP, yet.
Perhaps Danté will become that, in due course.
 
JJ
 
Jun 12, 2016 at 11:04 PM Post #518 of 1,974
  So JJ, when you get your RN3 just get used to the auditory revelation that it brings to the ears.
 
Then after a while, try another tweak that to my ears at least, lifted the SQ a little bit more.
 
Yes your very own Akiko Triple AC stick adapted to plug into the rca of both the RN3 and the Mutec.
 
I'll let you be the judge on this one and see if you hear any improvements! 
wink_face.gif

Yeah that was one of my many additional experiments, to add the RN3 to the lowered noise floor accorded by the Akiko canister, among several other experiments.
atsmile.gif

 
There is one potential downside to adding the RN3 to this common ground plane in that it might induce aditional noise/hum (ground loop), but if that happens it will be evident right away.
 
JJ
 
Jun 12, 2016 at 11:11 PM Post #519 of 1,974
I have 2 of the Akiko Triple and the RN3 and Mutec each have 1 plugged in and I hear an improvement in the SQ but it is very subtle though. Maybe it needs some more time and I'll just leave it plugged in. You may be able to distinguish the improvements more since you have played with these sticks a lot on your experimentations.
 
Jun 12, 2016 at 11:13 PM Post #520 of 1,974
If you open the RN3 up, be careful to not yank the cover out of the way as there is a ground wire that is screwed to the underside of the cover.
Thought I just warn you in advance.
 
I was actually thinking of just installing the Akiko Triple inside the RN3 and hardwiring to the chassis.
 
Jun 13, 2016 at 12:16 AM Post #521 of 1,974
  I have 2 of the Akiko Triple and the RN3 and Mutec each have 1 plugged in and I hear an improvement in the SQ but it is very subtle though. Maybe it needs some more time and I'll just leave it plugged in. You may be able to distinguish the improvements more since you have played with these sticks a lot on your experimentations.

Yeah, the changes the Akiko cans make are subtle especially when not directly connected to the noise sources.
But these subtle differences become much more obvious when rewired to connect directly to the ground plane on the 'noisy' devices (dacs, RN3, etc.).
This degree of tweaking is really where the benefits can really show up.
 
  If you open the RN3 up, be careful to not yank the cover out of the way as there is a ground wire that is screwed to the underside of the cover.
Thought I just warn you in advance.
 
I was actually thinking of just installing the Akiko Triple inside the RN3 and hardwiring to the chassis.

Thanks for the heads up about the ground run from the case.
I have seen the use of such ground schemes before in industrial electronics and so I'm used to looking for them.
 
And with 'noisy' digital devices, grounding becomes even more critical!
 
JJ :thumb :thumb
 
Jun 13, 2016 at 12:41 AM Post #522 of 1,974
Oh another thing. I just opened the RN3 and replaced the fuse that you mentioned with an Audio Horizons Platinum Reference that I have lying around.
The marking on the fuse was T2A250V so a 2 amp. Not sure if it's a slow or fast blow but it has a thick spring like coil inside. I had a 2.5 amp so I just used that. Did not notice an immediate improvement so will let it settle in.
 
I will modify 1 of the Akiko Triple and go ahead and hardwire to the chassis of the RN3 and maybe just use double sided tape or wire ties to affix to the inside chassis.
 
Jun 13, 2016 at 1:36 AM Post #523 of 1,974
The 'spring' indicates it's a slow blow.
Is the wire that runs from the end of that 'spring' to the end of the fuse, mighty tiny?
If so it might be a 0.2amp fuse.
I can't see it being a 2 amp fuse for only a 30 watt draw, and especially during 220-240volt operation.
 
You might try connecting your Akiko canister to the chassis side where that ground wire (not at the lid) is connected.
Be careful and don't let those 3 stiff wires short out to anything else.
Perhaps a stubby adapter from that existing grounding point to the Akiko Canister would be in order.
 
You might be shocked at what happens, especially if the can is inside the case.
This is an experiment I was thinking about making as well, only I was thinking of putting it inside the dac.
 
But once I re-wired the canister and tied it directly to the ground plane of my amp and dac, the results were and still are taking the SQ to new heights.
I can see where tying in the RN3 to this lowered noise floor, could result in a noticable SQ step up as well.
 
JJ 
atsmile.gif

 
Jun 13, 2016 at 1:49 AM Post #524 of 1,974
I re-read the markings on the fuse again and it does say 5K T2A250V. The thick spring like coil in the fuse goes from end to end. I do not see any tiny wires inside the fuse.
The T2A250V (2A) indicates that it is a 2amp right? At least that's how I interpret it.
 
I'll solder extension wires from the end of the Akikos to reach the ground point of where the ground wire is attached to the casing of the RN3.
 
Jun 13, 2016 at 2:11 AM Post #525 of 1,974
Is there a manufacturer name or logo?
How about any other markings?
 
And if that spring does actually run end to end then it most likely is a 2 amp fuse.
Having said that, and usually the 'T' stands for tube (shaped) but it might also be a means of further defining the range of that 2A.
 
But if it is a 2 amp fuse that means it won't blow unless there is a catastrophic failure of the power supply.
I mean 2 amps at 240volts is nearly 500 watts and this device is rated at 30VA, which is a factor of ≈ 16 times less power usage.
 
My scalp is showing signs of redness as I continue to scratch my head… 
atsmile.gif

 
JJ
 

Users who are viewing this thread

Back
Top