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Asus Essence One Headphone Amp/DAC (CeBIT 2011) - Page 97

post #1441 of 2965
Quote:
Originally Posted by Gandah View Post

Since we are on the subject of OPA2132 my opamps finally arrived, they must of gotten or something, friend sent them a month ago.

 

Anyhow I got

2x OPA2107

4x OPA2132

2x LM4562

4x LME49722

 

The OPA2132, LM4562 and LME49722 are a surface mount package on DIP adapters, I'm just a bit unsure about the OPA2132U what does the U stand for and are they safe to use? Although I have been using them in this combination of 4 OPA2132 I/V and 2 LM4562 they seem to be working fine just thought I check with you guys though

 

Coming from the standard E1 edition I'm quite surprised at the vast improvement in SQ, I was thinking it would improve a little, not this much,  I can never go back to flabby bass no detail NE5532.  The detail in this op combo is just amazing so articulate with a tighter denser bass, however it is a tad bright not painfully like having ice picks in your ears, just a little unnatural to my ears through the Fostex TH900, not that the TH900s are natural sounding, far from it, it's brighter then the NE5523. Also asus say this opamp combo is "slightly cool" I didn't at all find them less warm, but could be on other HP's like the HD800.

 

Overall I'm very happy with the SQ, and now want to tryout the muses, rather then buying a better DAC :)

 

Cheers,

~Steve

I have some 2132-s, i´m going to try them in the buffer with ad797 in i/v. I also had your op combination however i found the 2107 in i/v and 2132 in lpf better. It was a little less bright and more mid focused. Right now i am still trying to find a good neutral combination with the ad797 in lpf. The op-s i have right now are:

 

5xad797

8xopa2107

8xopa2132

7xlme49720ha

6xlme49720na

3xlme4562

6xne5532

6xopa1612

4xlme49860

 

I tested a lot of combinations with these but still haven´t found a truly neutral and good sounding combination. 

lme49990 and opa827 are coming soon. I also have some lme49710-s but i am waiting if i will use 49720 in the one before i invest in adapters for them. I am guessing the 49710 has the same sound character as the 49720 just with better sound.

post #1442 of 2965
Quote:
Originally Posted by Whit3Rav3n View Post

I have some 2132-s, i´m going to try them in the buffer with ad797 in i/v. I also had your op combination however i found the 2107 in i/v and 2132 in lpf better. It was a little less bright and more mid focused. Right now i am still trying to find a good neutral combination with the ad797 in lpf. The op-s i have right now are:

 

5xad797

8xopa2107

8xopa2132

7xlme49720ha

6xlme49720na

3xlme4562

6xne5532

6xopa1612

4xlme49860

 

I tested a lot of combinations with these but still haven´t found a truly neutral and good sounding combination. 

lme49990 and opa827 are coming soon. I also have some lme49710-s but i am waiting if i will use 49720 in the one before i invest in adapters for them. I am guessing the 49710 has the same sound character as the 49720 just with better sound.

Cool Rav, good to know after further testing I will more then likely buy some more opamps and keep the 2107 in mind as i've only got 2 of them at the mo. So out of all the combinations you could have with those op's what is your favorite combo, and what HP you use if you don't mind me asking?

 

Can't find much info on the LME49722 is this just a renamed LME49720 that I read somewhere early today, any info would be appreciated if anyone knows?

 

Cheers,

~Steve

post #1443 of 2965
Quote:
Originally Posted by turokrocks View Post

I also have to change the gain, and will take some pictures

 

sweeet happy_face1.gif

post #1444 of 2965
Quote:
Originally Posted by Gandah View Post

Cool Rav, good to know after further testing I will more then likely buy some more opamps and keep the 2107 in mind as i've only got 2 of them at the mo. So out of all the combinations you could have with those op's what is your favorite combo, and what HP you use if you don't mind me asking?

 

Can't find much info on the LME49722 is this just a renamed LME49720 that I read somewhere early today, any info would be appreciated if anyone knows?

 

Cheers,

~Steve

 

WIthout the ad797 the best combination i found was the 2107 in i/v, the 2132 in lpf and the 1612 in buffer. I am using the hd 650 as headphones but i also use them with speakers that are quite neutral and direct sounding so i can test the op-s with different sounding equipment.

post #1445 of 2965
Quote:
Originally Posted by cssarrow View Post

So far im using MUSES01's with NE5532 in buffer, and they sound prettttttty darrrrn gooooood.

 

Tim


Whatever combination I use, everytime I place the NE5532 in the buffer I get those piercing "sss" back.

I find the AD797's best in buffer.

I/V: NE5532 ; Buffer: AD797BR best combo for me so far. - good bass, relatively smooth highs (just a tad too bright sometimes)


Edited by Kenion - 2/13/13 at 10:45am
post #1446 of 2965

Guys, I can't find the gain switch!!!

 

 

 

 

 

 

 

 

 

 

 

 

post #1447 of 2965
Quote:
Originally Posted by cssarrow View Post

Iono, i 've always made my own.

 

You can try ebay. lol.

 

Tim

I found this (must have gotten it long time)

What do you think? A keeper?

 

post #1448 of 2965
Quote:
Originally Posted by turokrocks View Post

Guys, I can't find the gain switch!!!

 

 

Hmm, it's not at the spot where we assumed it would be...

 

That coax cable looks good to me. However, you will just need an optical cable if you plan to connect your E1 to the ZxR, like I will.

post #1449 of 2965
Quote:
Originally Posted by Kenion View Post

 

Hmm, it's not at the spot where we assumed it would be...

 

That coax cable looks good to me. However, you will just need an optical cable if you plan to connect your E1 to the ZxR, like I will.

So whats happening???!! where is it?

 

I found this also:

 

post #1450 of 2965
Quote:
Originally Posted by Kenion View Post


Whatever combination I use, everytime I place the NE5532 in the buffer I get those piercing "sss" back.

I find the AD797's best in buffer.

I/V: NE5532 ; Buffer: AD797BR best combo for me so far. - good bass, relatively smooth highs (just a tad too bright sometimes)

I don´t like the ne5532 because it always has a bass heavy and muddy character. The ad797 is much better in the i/v than the ne5532. Right now i am using the 49720ha in the lpf and the opa3132 and it sounds pretty good so far. The 2132 in the lpf doesn´t quite has the sound stage of the 49720 but with the 49720 the sound was too thin.

post #1451 of 2965

Based on your pictures, i could not locate the gain switch.

Perhaps it's underneath the PCB.

 

Tim

post #1452 of 2965
Quote:
Originally Posted by cssarrow View Post

Based on your pictures, i could not locate the gain switch.

Perhaps it's underneath the PCB.

 

Tim

I suspected this, maybe later.

post #1453 of 2965
Quote:
Originally Posted by cssarrow View Post

Based on your pictures, i could not locate the gain switch.

Perhaps it's underneath the PCB.

 

Tim

But that sounds unlikely i don´t think asus would expect the customers to disassemble the dac just to set a gain switch.

post #1454 of 2965
Anyone use AD8620 on soic dip adapter in rca buffer?
Ciao
post #1455 of 2965
Quote:
Originally Posted by Whit3Rav3n View Post

But that sounds unlikely i don´t think asus would expect the customers to disassemble the dac just to set a gain switch.

Yes, i have doubts also.

 

ASUS needs to help us understand this.

 

I wonder whether or not it detects IEM's and adjusts the gain by itself. hm..

 

Tim

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