Soekris dam1021 rev 3 (2%) R2R ladder DAC

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gavinbirss

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Planning to go dual balanced, already received 2 boards last week Friday.
Firmware is now at V 1.06 : http://www.soekris.dk/download.html
:2thumbs:

Will use non-isolated 500 Mips XMOS board (less power hungry that 16 core/2000 MIPS version), as inputs are on dam1021 are isolated.

Optical input (192K) can be added for $4 (DIYINHK)

Just need to plan how to split appropriate signals. Each board will be configured via serial console to be bal-left/right and balanced output will be obtained from RAW ouput bypassing the opamp/buffers.

There are some switch/input boards available from fellow DIYers at DIYaudio...
Affraid mine will be a plankie until I get help to case it...

Even with 1 board the signal to noise ratio is only 3db better from the buffered balanced outputs and some prefer the RAW unbalanced/unbuffered outputs.

xmos-dsd-dxd-384khz-high-quality-usb-to-i2s-pcb.jpg

soekris-after-upgrade-2-crop.png

192k-optical-spdif-receiver.jpg

dam1021_top.jpg


http://www.soekris.dk/dam1021.html
 
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