Amateur Soekris 1021

[Dadbeh]

You can run Amanero off a separate high quality power supply if you want. The JL Sounds board I linked to also allows separate high quality external power supplies.

Regarding the i2s connection of the LKS to your Soekris DAC, the instances of RJ45/HDMI connections I've come across have all been LVDS (low voltage diffeential signalling) implementations designed to transmit the i2s data over a longer distance. If the LKS is using LVDS you'll need a matching receiver at the DAC end, if it isn't I wouldn't touch it as it's a surefire way of degrading your i2s data - the max recommended transmission distance for i2s is 10cms!

thanks for these great info very illuminating. The LKS is out. now i gotta choose between
Wave IO and the xmos hge was linked before and the official amanero board.

 

[wushuliu]

thanks for these great info very illuminating. The LKS is out. now i gotta choose between
Wave IO and the xmos hge was linked before and the official amanero board.

The Wave IO has a lot of support here I think, so that's a good option in case you have questions.

 

[Dadbeh]

waveio is lacking in the disclosed specs. what is the usb decoder chip? is it xmos u208? the page does not have enough details.

ok so now that i have my Soekris 1021-5 rev 4 board in hand i need to choose the power supplies for the board itself and for the usb board. i was thinking of signing up for the group buy for salas Reflektor-D the other one that i forgot what it is called. my understanding it that i need +-12 volts for the board and i need 3.3 volts for the usb board. any advice or suggestions?

 

[Dadbeh]

would this work with soekris 1021?
1.3"OLED and rotary encoder volume control PCB - DIYINHK

 

[wcwc]

Some are feeding +-9V to the Dac. Get the ultraBIB V.1.3 which should be in the next group buy.

 

[Dadbeh]

well actually this new 768khz with XMOS 216 looks tempting but it is $170 with all the options.

Isolated XMOS 768kHz DXD DSD512(DSD1024) high-quality USB to I2S/DSD PCB - DIYINHK

 

[Dadbeh]

Some are feeding +-9V to the Dac. Get the ultraBIB V.1.3 which should be in the next group buy.

yes that is the plan. tea bag said there is a chance that some complete kits might be offered.

 

[Dadbeh]

Waveio does not support DSD, correct?

 

[Dimdim]

It does support DSD.

Regarding the XMOS chip used, it's a couple of generations older than the 208/216.

 

[Dadbeh]

how does the linear power supply from DIY NHK compare with ultraBIB V.1.3 performance and reliability wise?

 

[Dimdim]

AFAIK there has been no real world comparison as yet between the UltraBiB and the DIYINHK power supply (LT3042?).

What I can say from first hand experience is that my Salas SSLV 1.2 power supply easily bested my LT3042 based power supply when powering my dual AK4490's discreet class-A output stage.

The UltraBiB is in the same league as the SSLV 1.2.

Regarding reliability, AFAIK there have been no issues reported for either the DIYINHK power supplies or the Salas shunts. The 1.3 is a very new beast, but I have a lot of confidence in Salas' abilities as a designer and his attention to detail.

 

[Dadbeh]

thbaks so much guys i learned a lot.

look at this one, fascinating:
New X01 Amanero usb iis Digital interface 32bit 384 ASIO512 C3391 crystal 926319270791 | eBay

 

[nautibuoy]

Waveio does not support DSD, correct?

I think you'll find the Soekris just converts DSD back to PCM. If I'm right, might as well just use PCM.

 

[Dimdim]

thbaks so much guys i learned a lot.

look at this one, fascinating:
New X01 Amanero usb iis Digital interface 32bit 384 ASIO512 C3391 crystal 926319270791 | eBay

One more illegal clone. Plus having the clocks on a separate board is generally a non-optimal solution.

 

[wushuliu]

how does the linear power supply from DIY NHK compare with ultraBIB V.1.3 performance and reliability wise?

If you're going diy get the ultra, it's a no-brainer. In fact I didn't even know the Ultra was available, so thanks for mentioning it!

 

[nautibuoy]

so the 1021 does not support true DSD just DSD over pcm, right?

I think you're asking the wrong question over on the Soekris thread. I think you'll find that with the latest firmware the 1021 will be happy with either DSD or DoP at its input (once unpacked DoP is just DSD). The question is what does it do with that DSD input once it's got it?

 

[Dadbeh]

I see. thanks for the info guys. as soon as i receive the Ultra BiB and the Reflektor-D ill move forward with the build. I am still not 100% clear how to set the output voltage of the these two to the exact voltage that is required.

i also bought a Denafrips Ares and audio gd R2R11 to compare the results. Soekris definitely will not end up cheaper, hopefully it is gonna end up sounding better.

 

[nautibuoy]

...I am still not 100% clear how to set the output voltage of the these two to the exact voltage that is required.

Read the manuals. The documention for these group buys is pretty good; certainly the |Reflektor-D document covers output voltage setting - I know because I've just been referencing it.

 

[Dadbeh]

ok guys thanks for the insights. now i need to figure out the colume control. does it have volume in digital domain?

 

[dubai2000]

i also bought a Denafrips Ares and audio gd R2R11 to compare the results. Soekris definitely will not end up cheaper, hopefully it is gonna end up sounding better.

I shall be extremely interested in that comparison so please do let us know.