Hi all need PCB ll1684 for DAC
2 PCB LL1684 ( left + right ) =35$
shipping 5$
total: 40$
my paypal: quanghao168@yahoo.com.vn
thanks
quanghao
2 PCB LL1684 ( left + right ) =35$
shipping 5$
total: 40$
my paypal: quanghao168@yahoo.com.vn
thanks
quanghao
Din anyone compared LL1684 output stage vs opamp? I was wondering if there is indeed a significant difference and the investment is worthy.
This seems like the A is better than B is better than C is better an A paradigm. Transformer versus op amp versus cap versus R2R.
Snake oil analysis is recommmended and required as it is a regular contaminant
Erlend, Do actually like your comment. Many do not like op amps but again it depends on which one, and I do believe the Burson is probably very good within the opamp realm.
I do wonder however, whether the Burson SQ audibly beats the best Burr Brown op amps. There is probably not much in it, as they are probably both very good. But I do however tend to prefer discrete components for their use in flexible designs.
Transformers are useful for cleaning up and taming the sound but you can lose more than you gain.
Hi I was able to connect Super V/I with ak4490. It sounds great! I found that the better the caps the better the sound. I used Audyn True Coppers 1,5uf.
The dac itself is from:
NovaPlus - eShop Home
The dac itself is from:
NovaPlus - eShop Home
An externally hosted image should be here but it was not working when we last tested it.
Hello quanghao and guys,
What happens if one doesn't populate R3,C3-C6 and R4,C7-C10?
What are these networks for?
Thanks.
What happens if one doesn't populate R3,C3-C6 and R4,C7-C10?
What are these networks for?
Thanks.
Hello,
is it possible to use LL1690 instead of ll1684, if I drill a hole for pin 3 and connect it to pin 8 ?
Thank you
is it possible to use LL1690 instead of ll1684, if I drill a hole for pin 3 and connect it to pin 8 ?
Thank you
LL1674
Hello Quang Hao,
Same question,
I want to use 1 : 4 transformer LL1674 ( rdc primary = 33 ohm / rdc secondary 605 ohm) to have more gain. Can i use it ?
Br
Jacky
Hello Quang Hao,
Same question,
I want to use 1 : 4 transformer LL1674 ( rdc primary = 33 ohm / rdc secondary 605 ohm) to have more gain. Can i use it ?
Br
Jacky
Hello Guang Hao,
Sorry , but if i understand well, in this case i have a 4 : 1 transformer and not a 1 : 4 transformer for more gain.
I want to use LL1674 or LL1676 (1 : 2) in your dac converter.
LL1684 = 1:1 / Prim dc = 41 ohm/winding / Second dc : 41 ohm
LL1674 = 1:4 / Prim dc = 33 ohm/winding / Second dc : 605 ohm
LL1676 = 1:2 / Prim dc = 145 ohm/winding / Second dc : 605 ohm
Br
Jacky
Hello Guang Hao,
Thanks for this drawing , but in this case , LL1674 seems a better choice (Rdc primary =33 ohm only ) ?
Br
Jacky
Hello Guang Hao,
Today i have only LL1684 and i must buy them.
I must made the right choice before buying them (350$) 😕
Br
Jacky
Not only the cost of LL1684. Those 10uf Caps on the board also impact sound. Standard ESA 10uf are so, so. Caps does not have to have such high capacitance. 2,2uf is enough. So you can get 2,2uf of better quality than ESA.
I personally would love to have capacitorless transformer outputstage for sabre.
Something like: Teramoto FINEMET transformer.
Sorry if this has already been discussed, but what are those caps for? To eliminate any slight dc imbalance on the outputs of 9018? Are the transformers intolerant of even microamps of current?