It seems we are not talking about the same thing. My opinion is referred to the manufacturer´s obligations and the support ofered to his products. In this sense Soren seems to be regrettable, just a disaster.
In the other hand, we can take care about the consumer´s enthusiasm, those who really give the product´s support.
Regards
Just what we need EU bureaucrats getting involved on one of the few things left with true freedom of choice.
The Spaniard should stick to ready made boxes with all of the right stickers attached.
No ESD bag for a such advanced (and expensive) pcb?Can someone please confirm if this is how they received they’re dam1021?
An externally hosted image should be here but it was not working when we last tested it.
tia
Just wondering, how does the performance differ with different tolerances of the resistors?
THD differences... Soren has updated his webshops with the specs...
0.01% resistors THD at -1dB is 0.005%
0.02% resistors THD at -1dB is 0.008%
and 0.05% resistors THD at -1dB is 0.015%
There is only stock left for 0.02%. Additionally, most (if not all?) of us received it in proper ESD packaging... that isolated case may have been a customs thing.
It seems we are not talking about the same thing. My opinion is referred to the manufacturer´s obligations and the support ofered to his products. In this sense Soren seems to be regrettable, just a disaster.
In the other hand, we can take care about the consumer´s enthusiasm, those who really give the product´s support.
Regards
Product was released as a diy module. There is expectations to "diy". The benefit to us is that we pay cost or near cost.
Id ignore him. There is more than enough info around to the dac working. Also if dsd was a purchase priority, then this would not be the right product to invest in. Soren has stated that dsd is not a priority and that is fine as far as I am concerned.
Quote:
Originally Posted by DEQ+TheEnd View Post
Can someone please confirm if this is how they received they’re dam1021?
Click the image to open in full size.
tia
No ESD bag for a such advanced (and expensive) pcb?
The issue was discussed in the thread a while ago... seems as if it was an exception or customs opened the parcel.
I did receive mine in professional wrapping.
I have made a temporal set-up with a Raspberry Pi and a I2S connection.
When I use Vortexbox 2.3 as a music server and all settings are correctly installed, I can play DSD via DoP, and it sounds very well.
I can use a ESS 9016 as a reference who can play native DSD.
When I use Vortexbox 2.3 as a music server and all settings are correctly installed, I can play DSD via DoP, and it sounds very well.
I can use a ESS 9016 as a reference who can play native DSD.
Attachments
Besides the obvious problem (that the DAM does not support DoP or DSD playback), neither does the I2S connection of the RPi, so Vortexbox must be doing DSD to PCM conversion.
Correct, Vortexbox 2.3 has a little program DSD2PCM.😀Besides the obvious problem (that the DAM does not support DoP or DSD playback), neither does the I2S connection of the RPi, so Vortexbox must be doing DSD to PCM conversion.
It sounds wonderful.
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My I ask how to do "Factory reset" to the Dam1021 if someone want to clean all the additional filters away?
The answer may be inside these 265 if I had lost any of them after a long time of reading.....
Thank you everyone 🙂
The answer may be inside these 265 if I had lost any of them after a long time of reading.....
Thank you everyone 🙂
There is no concept of "resetting to default filters". All you need to do is load the original filter file, found here: http://www.diyaudio.com/forums/vend...magnitude-24-bit-384-khz-149.html#post4216998
The factory filter file 1012filt.skr can be found at:
Soekris Engineering, Inc. | How to buy
For some reason internal thread links seem to break if you have the number of posts per page changed from default...
Soekris Engineering, Inc. | How to buy
For some reason internal thread links seem to break if you have the number of posts per page changed from default...
I am waiting to get more boards since the firmware to run the DAM crossover function is not released yet. Søren did say that he was excited to get this feature running for his own personal use, so hopefully it will be out soon and well tested by him. I would be happy for more updates so that enthusiasm does not wane for the product. I am very close to settling for minidsp as an alternative.
Forgive my ignorance. I can see how the DAM filter programming capability would allow the DAM to act as both a crossover filter and a DAC for one driver (stereo pair). But won't it be necessary to have some digital programing in order to provide the same digital signal to each driver/crossover/DAC combination? It seems like one would need something like the MiniDSP miniSHARC or nanoDIGI in front of multiple DAMs to route the input signal to each DAM. I don't see how the DAM, as currently configured, would have the capability to really act as a crossover.
If I am correct (with a good chance that I am not), you may want something like a MiniDSP anyway and use multiple DAMs as high quality, good value DACs. I still think of this as a really interesting solution because, even if the crossover functions where handled before the DAM, the advantage the DAM has is that you could tailor the sound of each driver with the FIR filter.
Can anyone with more expertise shed some light on this topic?
I don't see how the DAM, as currently configured, would have the capability to really act as a crossover.
There will be a lot of changes in the next firmware update. We'll have a better idea of what is and is not possible once that is released...
Hi Søren,
I was curious if there was any obvious disadvantages to replacing the LME49710 in the output buffers with LME49990? The only spec I can see that is appreciably worse is the current noise density, but as the output impedance of the ladder is under 1K ohm so I imagine that shouldn't be a big issue.
cheers
Paul
I was curious if there was any obvious disadvantages to replacing the LME49710 in the output buffers with LME49990? The only spec I can see that is appreciably worse is the current noise density, but as the output impedance of the ladder is under 1K ohm so I imagine that shouldn't be a big issue.
cheers
Paul
Hi,
I received my DAM card. It looks great.
I would like to use it with Raspberry V2 & VolumIO with direct I2S connection.
Anyone tried this ? Where can I find a good tutorial ?
The mains items :
- Which I2S driver to use in VolumIO ?
- Does the driver permit to us to manage the DAM volume capapability from VolumIO client ?
I received my DAM card. It looks great.
I would like to use it with Raspberry V2 & VolumIO with direct I2S connection.
Anyone tried this ? Where can I find a good tutorial ?
The mains items :
- Which I2S driver to use in VolumIO ?
- Does the driver permit to us to manage the DAM volume capapability from VolumIO client ?
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Here is someone using that config
https://volumio.org/forum/soekris-ladder-dac-t2553.html
Of you want to control the volume from Volumio you have to connect the rpi to the dam via serial and use the umanager there.
But with current firmware the GPIO headers from rpi (ttl serial) to dam1021 are not compatible (3.3v instead of 5v) You then have to use an usb to serial interface on the rpi (which I do)
https://volumio.org/forum/soekris-ladder-dac-t2553.html
Of you want to control the volume from Volumio you have to connect the rpi to the dam via serial and use the umanager there.
But with current firmware the GPIO headers from rpi (ttl serial) to dam1021 are not compatible (3.3v instead of 5v) You then have to use an usb to serial interface on the rpi (which I do)
Thanks Bambadoo
OK to manage the volume control with USB to serial converter.
I know the topic on VolumIO forum. It doesn't really detail how to.
I posted the same message on this topic...
As first step I will use potentiometer connected on DAM volume control...
OK to manage the volume control with USB to serial converter.
I know the topic on VolumIO forum. It doesn't really detail how to.
I posted the same message on this topic...
As first step I will use potentiometer connected on DAM volume control...
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