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dam1941 - Next Gen Discrete R-2R Sign Magnitude 24 bit 384 Khz DAC module

Screenshot 2022-05-13 at 08.23.54.png
 
Just posted dam1941 rev 1.24 firmware on the soekris website. Support for DSD on 2nd I2S port added.
R1.24
M5
I7
L000
F7
V+00
PN
V+00
I3
L044
V-04
F4
V+00
V+02

dam1941 uManager Rev 1.24 20220511 FPGA Rev 1.24 Press ? for help.

# filters

04 Linear Phase FIR1, 44.1 Ksps, 21.3 Khz - 1 db, 21.9 Khz -130 db
08 Linear Phase FIR2, 384 Ksps, 111 Khz -1 db, 192 Khz -130 db
29 DC Blocking IIR, 352.8 Ksps, 2 Hz HP 1st order
30 Deemphasis IIR, 352.8 Ksps, 50/15 uS


While my DAM1921 did have,
..
08 Linear Phase FIR2, 352.8 Ksps, 102 Khz -1 db, 177 Khz -130 db
08 Linear Phase FIR2, 384 Ksps, 111 Khz -1 db, 192 Khz -130 db
..
when
#filters all

Is above normal when playing CD, 44.1kHz?
 
I loaded them today and was nicely surprised. The F5 (red LED) sounded very interesting and certainly better than Soren’s version. I had hard time deciding if I like NOS or yours better. I still think that NOS sounds more natural with better definition of bottom end but need to listen more.
C128dp sounds very nice too, but to me a bit too nice, not very nat

I loaded them today and was nicely surprised. The F5 (red LED) sounded very interesting and certainly better than Soren’s version. I had hard time deciding if I like NOS or yours better. I still think that NOS sounds more natural with better definition of bottom end but need to listen more.
C128dp sounds very nice too, but to me a bit too nice, not very natural.


Did you try the version (both spikestabber and TNT) without DC filter ?

Spikestubber pack has New NOS filter by Paul, Soekris as per attached pic, I don’t know if those are the same or not.

https://www.diyaudio.com/community/threads/filter-brewing-for-the-soekris-r2r.269776/post-5723656

This #1692 filter?