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Super V/i converted (LL1684 )

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#44
1. NicMac, 1 set (possibly also the transformers)
2. palmito, 1 set
3. Misterwolf, 1 set = 1(25$)+2(2$)+4(2$)+6(7$)+shipping(10$) = 46$
4. audiodesign, 1 set
5. danielkol, 2 set
6. Mas Penk, 1 Complete kit... Shipping together with DAC kit
7. flowerpot, 1 set
8. Stenachio, 1 set, including all parts (if possible), shipped with DAC kit
9. Sandor, 1 complete set with LL1684, shipping with DAC kit
10. Rowli, 1 complete set with LL1684
11. nkdk 2set. pcb
12. Nick F, Complete kit (items 1-8) ship w/DAC?
13. hordmop, 2 set = 1(50$)+2(4$)+3(13$)+4(4$)+5(10$)+6(14$)+7(76$)+shi p ping(20$) =191$
14. msaywitz: Complete Kit (items 1-8), shipped with DAC kit.
15. MattMax: Complete kit, including LL1684 transformers + shipping.
16. necplusultra, 1 set (possibly also the transformers)
17. flocchini, 1 complete set with transformers
18. gjorgji Complete kit, including LL1684 transformers + shipping
19.myfavoritething 1 complete kit with LL1684 +shipping, + Amareno usb module + LNV and the caps to modify coax and AES output
20. meintan: 1XItem1($25)+1XItem5($5) + 2XItem6($14) + Shipping($10). May I have a dac shield please. Have not received mine.
 
#45
1. NicMac: 1 set (possibly also the transformers)
2. palmito: 1 set
3. Misterwolf: 1 set = 1(25$)+2(2$)+4(2$)+6(7$)+shipping(10$) = 46$
4. audiodesign: 1 set
5. danielkol: 2 set
6. Mas Penk: 1 Complete kit... Shipping together with DAC kit
7. flowerpot: 1 set
8. Stenachio: 1 set, including all parts (if possible), shipped with DAC kit
9. Sandor: 1 complete set with LL1684, shipping with DAC kit
10. Rowli: 1 complete set with LL1684
11. nkdk: 2set. pcb
12. Nick F: Complete kit (items 1-8) ship w/DAC?
13. hordmop: 2 set = 1(50$)+2(4$)+3(13$)+4(4$)+5(10$)+6(14$)+7(76$)+shi p ping(20$) =191$
14. msaywitz: Complete Kit (items 1-8), shipped with DAC kit.
15. MattMax: Complete kit, including LL1684 transformers + shipping.
16. necplusultra: 1 set (possibly also the transformers)
17. flocchini: 1 complete set with transformers
18. gjorgji: Complete kit, including LL1684 transformers + shipping
19. myfavoritething: 1 complete kit with LL1684 +shipping, + Amareno usb module + LNV and the caps to modify coax and AES output
20. meintan: 1XItem1($25)+1XItem5($5) + 2XItem6($14) + Shipping($10). May I have a dac shield please. Have not received mine.
21. linuxfan: 1 kit, WITHOUT LL1684 - items 1-7 (plus shipping)
 
#49
Erlend Sæterdal said:
I must say the 1684 can not play direct to a power amplifier. It was so much better with my Salas B1 in between.
Click to expand...
Yes, I wondered about this, myself. What power amp do you have? Balanced or unbalanced?
I suspect the result depends a lot on the particular amplifier.

I recall that at least two people have reported great results using direct-output, straight from DAC chip to (balanced) Hypex UcD amp ...
now I'm wondering whether the money I'm spending on this output stage might have been better put towards a UcD180 amplifier?
 
#50
well I think it depends on your upset to if you are able to hear the differences. The B 1 has around 70 kohm input impedance with a 100 kohm pot. The amplifier was around 30 kohm.

The differences was very much the dynamic behaviour and distortion. Was a lack off bass as well without the B 1.
 
#51
I think that the new discrete differential no feedback output stage is able to do "fly" every amplifier. The signal tranformer is a good choice but you have to check if the input impedance of the amp dampens the risonance of the tranformer ( +3-6dB ). The effects of high frequency can be perceived as a loss of bass.
 
#53
The problem is the impedance seen from the secondary of the transformer. If too low, the peak of the resonance (positive peak followed by a dip negative )is not damped. The buffer can not delete it. To linearize the frequency response there two ways.
1) Close the secondary with a low resistance. Unfortunately these loads load too the stage connected to the primary. With my tranformer have a linear response with 20K. The impedance reflected to the primary is only 8.9K. Perhaps they are too low for ES9018.
2) Insert an R-C network on the secondary ( R1-2, C1-2 ). What will, however, its effect on the sound?
 
#57
1. NicMac: 1 set (possibly also the transformers)
2. palmito: 1 set
3. Misterwolf: 1 set = 1(25$)+2(2$)+4(2$)+6(7$)+shipping(10$) = 46$
4. audiodesign: 1 set
5. danielkol: 2 set
6. Mas Penk: 1 Complete kit... Shipping together with DAC kit
7. flowerpot: 1 set
8. Stenachio: 1 set, including all parts (if possible), shipped with DAC kit
9. Sandor: 1 complete set with LL1684, shipping with DAC kit
10. Rowli: 1 complete set with LL1684
11. nkdk: 2set. pcb
12. Nick F: Complete kit (items 1-8) ship w/DAC?
13. hordmop: 2 set = 1(50$)+2(4$)+3(13$)+4(4$)+5(10$)+6(14$)+7(76$)+shi p ping(20$) =191$
14. msaywitz: Complete Kit (items 1-8), shipped with DAC kit.
15. MattMax: Complete kit, including LL1684 transformers + shipping.
16. necplusultra: 1 set (possibly also the transformers)
17. flocchini: 1 complete set with transformers
18. gjorgji: Complete kit, including LL1684 transformers + shipping
19. myfavoritething: 1 complete kit with LL1684 +shipping, + Amareno usb module + LNV and the caps to modify coax and AES output
20. meintan: 1XItem1($25)+1XItem5($5) + 2XItem6($14) + Shipping($10). May I have a dac shield please. Have not received mine.
21. linuxfan: 1 kit, WITHOUT LL1684 - items 1-7 (plus shipping)
22. Jinkslynx: Item 1-6+8, have some M-caps on hand. Sum 367,5
 
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