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Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 KHz

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#7,204
arnd13 said:
It's a bit difficult to say. I only had about 3-4 hours of intensive listening.

The first impression I had is that the sound is more relaxed/ less strained with a little bit more resolution. But the differences a very small.

In the moment I'm listening to Beethovens 9th... realizing that I'm to tired to listen and have to startover tomorrow 😡
Click to expand...

If this is the case I think it "sounds" very promising. I think that that is exactly what is needed.

Happy listening!! :-D

//
 
#7,205
sfox7076 said:
Anyone update firmware with a mac?
Click to expand...

You are going to need a terminal emulation client that can send files via Xmodem.

I am only aware of the dam1021 python (can do filters/should do firmware?), extraputty and Windows HyperTerminal that can do it. (TetraTerm also?)

Maybe homebrew with python? (for fortaa/dam1021)

Had lots of trouble myself, mostly due to serial adapters (USB), none of the FTDI/CP210x adapters seem to work. (garbage...)

GitHub - fortaa/dam1021: Python inferface for the dam1021 DAC
 
#7,212
To me it is more detail in the higher frequencies, and more or better mid /depth.

I had a combination off the firmware 1.05 and the moredamfilters (Partypack) and soft as the standard filters.

Now 1.19 and the soft filter, in combination with the Soekris 1021 as a DSD compatible DAC in Roon.
I like it.😱🙂
 
#7,213
#7,217
Soekris,

I may have a problem with DAM1021 rev. 2. I have PL2303 USB RS232 converter and I can access DAM via Terraterm with no problem, but when I send file via Xmodem it stucks randomly. Sometimes immediately on 1%, sometimes on 60%.

I've tried different OS, different laptop, baud rate ... This PL2303 converter is OK, I've updated DAM already with it, so I don't think there is a problem there. I'll try on my old computer with true COM port, just to eliminate that.

In the meantime, do you have any clue why would the transfer stop/stuck?

Regards
 
#7,218
Flikoman said:
Soekris,

I may have a problem with DAM1021 rev. 2. I have PL2303 USB RS232 converter and I can access DAM via Terraterm with no problem, but when I send file via Xmodem it stucks randomly. Sometimes immediately on 1%, sometimes on 60%.

I've tried different OS, different laptop, baud rate ... This PL2303 converter is OK, I've updated DAM already with it, so I don't think there is a problem there. I'll try on my old computer with true COM port, just to eliminate that.

In the meantime, do you have any clue why would the transfer stop/stuck?

Regards
Click to expand...

Perhaps make sure the connection is good, keep wires short and shielded (serial).

I put the 3 wires(TX,RX, GND) in a 1x4 pin header, the single wire connections pull open and sometimes barely make contact.

Perhaps also toggle 16550 UART buffer on/off.
 
#7,219
Hello, I'm trying to use a HC-05 bluetooth-modul (3.3 volt version) for communication with dam1021.

I used a arduino board to program the uart parameters to 115200 so I have the same speed as the dam1021. When I connect the modul with the dam it's possible to establish a bluetooth connection with my Macbook. But it's not possible to connect to the dam1021 (I used Zterm which is functional with a cable connection).

Does anyone have experience with HC-05/06 modul using with dam1021?

Thanks for your help.

Arnd
 
#7,220
Hello, my Rev 5 board cames with 1.06 firmware, I have performed the firmware upgrade flawlessly to 1.19, with putty app, and reduced the fifo parameters, otherwise I could not achive the 100% upload. I have been listen in raw mode which is a good surprise...
 

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