The question was originally about protection of the boards. We can offcourse build a powerplant to do it and hope it doesnt get struck by lightning.
This is a very nice piece of equipment Chanh. Didn't check the price but looks to me not so wallet friendly 🙂
I was thinking to make a clone of the Equi-Tech supply. Different aproach. Balanced current suply where of fase and in fase cancell all garbage from the line. Just like balanced interconnect idea. I was wondering if anyone here had any experience with it so I could know if that realy works for power line.
He lives very far from me, we chat on the skype. I'm trying to get him to let me know how to properly install it in the cirquity. He told me that he has to check with his friends from work to come up with some scheme a week ago, since then I can't catch him. Most probably tomorrow. This small device has 10koHm resistance and this is what worries me, so if that thing is to be mounted in line in serie,s then probably this is not the best choice.
But from what he says, they mount it to every device they produce for military. From radios to bomb electronics.
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D3
I'm just trying to find out, what the trouble is, by using this part. It is cheap and I read, what it says on the tin. Thanks D3
I'm just trying to find out, what the trouble is, by using this part. It is cheap and I read, what it says on the tin. Thanks D3
Have you ever thought of using balanced power? Where the incoming current on the mains is split and both the live and the neutral carry the same voltage, the noise on one cancels out the noise on the other.
I have been using it for many years and wouldn't look back .
Yes, it is probably not the cheapest nor within all's budget. However, it is the foundation/infrastructure of a good sound. I have tried many passive filtering and experiments lot, including the balance transformers previously. Still have the AirLink Balance 5kVA from UK here. An expensive exercise and is now doing nothing. Of course there is better regeneration out there like PurePower, Accuphase,.... For me P10 is fair at $5k, still lots cheaper than my DDDAC...! 😀
Like I previously alwAys said, it is an easy task to disagree and speculate when one never seen the light! 🙂
Chanh
Input Switch
Hello, I am just reading now a few month about the dddac and I am very interested in building one. But there is one problem which still prevents me to order a kit. I want to have the opportuntiy to switch at least between three digital input sources (coax, usb, i2s-rpi). As I see, with the default mainbaord I can only switch between two (coax and usb). Is there an easy way changing the existing switch to switch between more than two input sources?
How have other users implemented such a switch?
Hello, I am just reading now a few month about the dddac and I am very interested in building one. But there is one problem which still prevents me to order a kit. I want to have the opportuntiy to switch at least between three digital input sources (coax, usb, i2s-rpi). As I see, with the default mainbaord I can only switch between two (coax and usb). Is there an easy way changing the existing switch to switch between more than two input sources?
How have other users implemented such a switch?
Input Switch
Hello, I am just reading now a few month in this dddac thread and I am very interested in building one. But there is one problem which still prevents me to order a kit. I want to have the opportuntiy to switch at least between three digital input sources (coax, usb, i2s-rpi). As I see, with the default mainbaord I can only switch between two (coax and usb). Is there an easy way changing the existing switch to switch between more than two input sources?
How have other users implemented such a switch?
Hello, I am just reading now a few month in this dddac thread and I am very interested in building one. But there is one problem which still prevents me to order a kit. I want to have the opportuntiy to switch at least between three digital input sources (coax, usb, i2s-rpi). As I see, with the default mainbaord I can only switch between two (coax and usb). Is there an easy way changing the existing switch to switch between more than two input sources?
How have other users implemented such a switch?
Well. I am not part of your communion and you wont get me converted. I have studied the law of diminishing returns.
Hi All,
Just want to clarify that my personal opinions are purely based on personal practical audio journey. Here to share my findings as constructive community. Not here to persuade no ones to replicate my personal preferences nor try to convince any individual in this thread. There is certainly no incentive in it. Apologies should my poor choice of words lead to your interpretation as otherwise! Please note-No two setups are alike, nor will have same audio synergies let alone the differences in individual hearing capability.
Lastly, wish not embarking into personal attack other learning from your constructive feedbacks/findings from your DDDAC journey! Your findings are as good as anyone of us here!
I however encourage All to try out with your practical experiments on your setup/DDDAC and please share with us the real outcomes rather then on the sideline and speculating with a mindset that "I know it all" is nothing but disappointing!
Respectably,
Chanh
Just want to clarify that my personal opinions are purely based on personal practical audio journey. Here to share my findings as constructive community. Not here to persuade no ones to replicate my personal preferences nor try to convince any individual in this thread. There is certainly no incentive in it. Apologies should my poor choice of words lead to your interpretation as otherwise! Please note-No two setups are alike, nor will have same audio synergies let alone the differences in individual hearing capability.
Lastly, wish not embarking into personal attack other learning from your constructive feedbacks/findings from your DDDAC journey! Your findings are as good as anyone of us here!
I however encourage All to try out with your practical experiments on your setup/DDDAC and please share with us the real outcomes rather then on the sideline and speculating with a mindset that "I know it all" is nothing but disappointing!
Respectably,
Chanh
BBB/Cronus - the 1st impressions.
My (modified) Linn Majik via SPDIF sounds better than BBB/Cronus with wallwart 5v and original 5V reg on DDDAC motherboard feeding Cronus. Of course, I will try a good power for BBB and then I will decide. I wonder if Cronus could handle SPDIF signal from my Linn? I wish someone with knowledge can advise me.
Anyway, if fed with good power the situ doesn't change I will stick Cronus to BIIISE I have and stay with Linn and DDDAC and try Ian's FIFO kit.
Also, all that hassle with Linux. I still cannot handle my music database on NAS to connect to BBB. Of course, I will go on till I tame it 🙂
My (modified) Linn Majik via SPDIF sounds better than BBB/Cronus with wallwart 5v and original 5V reg on DDDAC motherboard feeding Cronus. Of course, I will try a good power for BBB and then I will decide. I wonder if Cronus could handle SPDIF signal from my Linn? I wish someone with knowledge can advise me.
Anyway, if fed with good power the situ doesn't change I will stick Cronus to BIIISE I have and stay with Linn and DDDAC and try Ian's FIFO kit.
Also, all that hassle with Linux. I still cannot handle my music database on NAS to connect to BBB. Of course, I will go on till I tame it 🙂
I personally have the blue mainboard and have the following setup:
- Raspberry Pi (RPi) connected to the I2S input of the DDDAC
- 5 TOSLINK + 1 Coax SPDIF inputs, connected via a rotary switch to the SPDIF input of the DDDAC
So, if I want to listen to the RPi, I switch to I2S input, if I listen to e.g. CD or DVD, I switch to SPDIF and then select the appropriate source with the rotary switch.
For switching also to USB, you would need some kind of I2S switching. Maybe this could also be done via a simple rotary switch, however, I think some I2S switching circuit would be better - but I did not implement neither of this.
Best Regards,
Hermann
I talked to my brother. he talked to his engineers and all agreed that in this case, if I wanted to implement such a cheap and not so good safety system, the better solution would be to mount a varistor 280V in series before mains transformer than surge arrester in dc part. Varistor is faster and makes less damage to the audio. But still is not a perfect solution. Maybe temporary aid for someone who has really big mess in house power grid.
Is exactly what I'm thinking about. What do you use for that matter please?
Just checked the AirLink. They have quite good assortment of balanced power supplies. And prices are not exaggerated. Seems good place to start with. Thanks for an indication Chanh, I didn't know that company before.
Air link are good and it is where I started with balanced power as well, however they are very poor quality and they can hum like mad.
After loads of research I now have a 3kVa with a 5kVa iron core, balanced toroidal that is totally quiet and the difference it has made to the sound of my hifi is much much better then the airlink products.
After loads of research I now have a 3kVa with a 5kVa iron core, balanced toroidal that is totally quiet and the difference it has made to the sound of my hifi is much much better then the airlink products.
This is interesting. Is just a centre tapped transformer or anything else that needs to be there, like snubbers or special fuses or breakers? Can you share some references, materials or links where I can find some more info if you have any? I would much apreciate it.
Hi There,
I found using a good linear ps into BBB is a necessity for a musical good sound. I currently use Doede PS for this with great result.
I thought latest version Botic 4/5 has rectified the NAS issue and should work seamlessly. Alternatively, Volumio has now incorporated the Botic driver manually on BBB.
The nature of Hermes/Cronus to my personal experience is too clean, clinical, very detail resolutions, and very digital without further ps modify.
Hope it helps.