DAC-END R (ES9018) full assembled board

[palmito]

Interest list for LL1684 PCB:

1. NicMac, 1 set of LL1684 PCBs (possibly also the transformers)

(not sure if I understood correctly that we should start a list here - I also send a PM)

Same problem with me, didn't know where to add my name, if here or in the dac GR. I will add it here too then:

Interest list for LL1684 PCB:

1. NicMac, 1 set of LL1684 PCBs (possibly also the transformers)
2. palmito, 1 set of LL1684 PCBs (two boards)

 

[audiodesign]

I'm back from the recording studio.
I confirm, after replacing the lmv7219 and the addition of the 0.1uF capacitor, the excellent locking of AES/EBU input up to 192kHz.

You say the original lmv7219 is not good ?

 

[audiodesign]

yes, this file!
thanks

Also the ground should be connected in a different way

 

[Erlend Sæterdal]

Also the ground should be connected in a different way

Please tell us wich way then .

 

[audiodesign]

Please tell us wich way then .

see previous

 

[claudio52]

Pin 1 on XLR connects directly to chassis - always.

Pin 2 = + hot transformer
Pin 3 = - cold transformer

Let the secondary of transformer 'float'.

Z

🙂

 

[Erlend Sæterdal]

see previous

thanks but I am not sure I understand that Square painting marked XLR and RCA.

 

[claudio52]

An excellent article:

Audio Component Grounding and Interconnection - diyAudio

 

[danny_66]

I have tested bandwith with lundall ll1684 and 2,2uF Jantzen +10k to ground.
Input 192khz coax, output 47k resistor.

8Hz to 35kHz +/-0.2dB 😀

Nice, if you add 10uf it will probably go lower.

 

[Erlend Sæterdal]

Was not stupid when I bought this after all 🙂

 

[danny_66]

You say the original lmv7219 is not good ?

Yes, see this post

 

[danny_66]

Was not stupid when I bought this after all 🙂
View attachment 377871

Mundorf MKP is not stupid 😉
I still need to play around with different caps and bypass caps with the LL1684.

 

[misterwolf]

You say the original lmv7219 is not good ?

After replacement of the comparators every input configuration and every cable previously used works fine, from 32khz to 192khz.

 

[misterwolf]

Interest list for LL1684 PCB:

1. NicMac, 1 set of LL1684 PCBs (possibly also the transformers)
2. palmito, 1 set of LL1684 PCBs (two boards)
3. Misterwolf, 1 set of LL1684 PCBs (two boards)

 

[rredline]

Interest list for LL1684 PCB:

1. NicMac, 1 set of LL1684 PCBs (possibly also the transformers)
2. palmito, 1 set of LL1684 PCBs (two boards)
3. Misterwolf, 1 set of LL1684 PCBs (two boards)
4. rredline, 1 set of LL1684 PCBs (two boards)

 

[audiodesign]

Interest list for LL1684 PCB SET (2 channels):

1. NicMac, 1 set (possibly also the transformers)
2. palmito, 1 set
3. Misterwolf, 1 set
4. rredline, 1 set
5. audiodesign, 1 set

 

[audiodesign]

🙂

Do you want a jump to leave separated the ground of output ?

 

[audiodesign]

LL1684 PCB

Here the final schematic

 

[claudio52]

Thanks Andrea, in the next days I will used the entrance transformer of my amp.
Why GND and off set of the V-out must be used together?

 

[inforsit]

Documents

Hi, Has anybody made a collection of documents, photos, instructions?