[HiFlight]

Quote:

Originally Posted by theory_87 /img/forum/go_quote.gif here and here BTW, those looking at TLE2142/2141 with EL8201, AD8066 with EL8201 is very comparable too with a little more tube like sound.

Regarding your comment in the link about buffers: Single channel opamps such as BUF634, AD797, etc will not work in the D10, as dual-channel opamps are required.

 

[theory_87]

Quote:

Originally Posted by HiFlight /img/forum/go_quote.gif Regarding your comment in the link about buffers: Single channel opamps such as BUF634, AD797, etc will not work in the D10, as dual-channel opamps are required.

I know. That was posted quite a long time ago

 

[madwolf]

LME49600 are single channel OP-AMP, They are almost identical to BUF634.
I have LME49600 working on my D10. They are the TO-220 in footprint.

I have just receive my BUF634 (SOIC version), will make it work on my D10 by the end of this week. But will need special adapter or rework. Still thinking what the best way to go about it.

I friend of mine just handle me some OPA1611 and OPA1612. *&@^#%# This is very hot, as in it was only release 1 or 2 months ago and it not available anywhere. I do not think you could purchase it anywhere, except direct.

I have 2*OPA1611 on a brown dog and can confirm that it sound better than a TLE2142. Same sweetness in the mids but without the slight sibilance in the high. Will be tring out Class A TLE2141/2 when I have the time. The OPA1611 is the audio version of the OPA211. 2*OPA211 works very well on the D10 as well.

 

[theory_87]

Quote:

Originally Posted by madwolf /img/forum/go_quote.gif LME49600 are single channel OP-AMP, They are almost identical to BUF634. I have LME49600 working on my D10. They are the TO-220 in footprint. I have just receive my BUF634 (SOIC version), will make it work on my D10 by the end of this week. But will need special adapter or rework. Still thinking what the best way to go about it. I friend of mine just handle me some OPA1611 and OPA1612. *&@^#%# This is very hot, as in it was only release 1 or 2 months ago and it not available anywhere. I do not think you could purchase it anywhere, except direct. I have 2*OPA1611 on a brown dog and can confirm that it sound better than a TLE2142. Same sweetness in the mids but without the slight sibilance in the high. Will be tring out Class A TLE2141/2 when I have the time. The OPA1611 is the audio version of the OPA211. 2*OPA211 works very well on the D10 as well.

Do feedback on the buf634. But my impression is it may not work well as D10 voltage is quite low...
U can buy some browndog to use with buf634
Single-to-dual Op-Amp Adapter (p/n 020302)

If you are ordering the browndog, do let me know. I may want to buy some too

 

[bakhtiar]

madwolf
I really enjoying your opamps adventures. Reading the OPA1611/2 datasheets already make me excited.

Now, the with OPA1611/2, how about the noise floor, especially with USB input or USB charging circuit is ON ? I wish I can get some from you

....

 

[madwolf]

Yes this adapter will work. In fact this is a very neat solution if you want to run 2nos of 634 per channel. Initially I only wanted to use 1 634 per channel. but it seem 2 is possible now. Just need another wire for high bandwidth setting (some people here refer it as Hi-C configuration).

theory_87: How many adapters do you need ?

So far from my testing all op-amp that have a min working voltage of 4.5v worked on the D10 (AD744,AD746,AD8599,OPA211) , However op-amp with min voltage of 5v works only at time (LMH6622, LMH 6655, LMH6672, ADA4899, ADA4857) and in cases (LM4562, LME49722) would fail instantly. OPA2132, OPA2134, OPA2227, OPA2228 works on the D10 and these require a min voltage of 5

Both LME49600 and Buf 634 min working voltage is 4.5V (Yes we are cutting it thin). From my reasoning above I expect buf634 to work, and also sound very close or similar to LME49600. (Check the 2 data sheet side by side if you have not and surprise yourself). But the SOIC version would have a chance to fit inside the D10 with case.


Quote:

Originally Posted by theory_87 /img/forum/go_quote.gif Do feedback on the buf634. But my impression is it may not work well as D10 voltage is quite low... U can buy some browndog to use with buf634 Single-to-dual Op-Amp Adapter (p/n 020302) If you are ordering the browndog, do let me know. I may want to buy some too

 

[qusp]

I think BUF634 works, but only for a couple of hours, I remember Ron had this issue; you dont seriously think no-one has tried it do you??

but I have seen you do some crazy stuff with opamps and know you are responsible for much of the configs we are running as reference now (with a few tweaks) so I guess you have as much chance as anyone of getting it happening. consider me very interested in your findings. even though I consider them to be overpriced, there is little doubt as to their potential.

running RON's new class A 2141 with EL8201 and i'm very impressed I must say, bass detail, air and errrmm dexterity is the best word I can think of for it; is exceptional, with JH13, i expect it to get even better once the Blackgates settle, as the sound is still a little incoherent, when it all falls together i'll be a happy man.

I took a cue from you mate, ordered some OPA1611A and OPA1612A, some OPA211A (the tiny PITA DFN-8 version) as well as some PCM1792A and PCM1794A, plus a few other bits and pieces. for playing around. now one thing I noticed is how similar OPA211ID and OPA1611AID are, being that the 1611/1612 are a lower grade than the 211ID I wonder if they will basically end up performing the same. I guess i'll let my ears be the judge of that. with the 1611 having balanced input and the PCM1794A having balanced output, could make for an interesting little device if I get around it it. thats a long road for someone of my abilities in this area, but should be a bit of fun, if even using the dacs to upgrade an existing design with a compatible pin designation and power demands

 

[sumtory]

Hello there,

It took me like 3 weeks to finish reading everything on this thread. I just got my D10 a week ago. However, it is not an iBasso, it is a Mini-Audio D-10!!!

http://img242.imageshack.us/img242/2324/d103i.jpg

Mini-Audio is the same manufacturer as iBasso, Mini-Audio is like the brand name for the China market. The thing is basically the same as the iBasso one except it comes with a shorter 10cm optical cable.

http://img23.imageshack.us/img23/4299/d102j.jpg

Also, the capacitor right beside the battery is changed into a single blackgate capacitor rated 1000uf, 6.3V.

http://img147.imageshack.us/img147/2406/d101.jpg

I don't know the circuit of the D10, but it is strange to me that my D10 only has 1 capacitor rather than 2, there must be a change in the circuit somewhere. Too bad I don't have a iBasso D10 to compare the sound with. Just wanted to let you all know there's such a thing called Mini-Audio D10 exist and I am enjoying it!!!

 

[iriverdude]

How much is the Mini-Audio D-10? Website?

 

[hvu]

Looks interesting, how does it sound?

 

[theory_87]

Care to show the underneath of the board?

 

[sumtory]

They are the same price as the iBasso. I bought it from a local store, the shop owner claimed that it is a limited edition and they are not available from iBasso web site. It is funny that the shop don't sell iBasso D10, but they got other models like the D2 and other stuff.

 

[sumtory]

Here you go.

http://img294.imageshack.us/img294/5...assod10014.jpg

 

[LeeSC]

According to this site, it says the 4 differences between the original D10 and the Mini-Audio iBasso D10 are:

1./ a hand made 10cm optical cable
2./ BG 1000uF/6.3V (Bypass?)
3./ LOGO: mini audio D10
4./ Only 30 unit available and each has a serial number.

 

[theory_87]

I'm still wondering how to install that 1000uf BG cap on D10?