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post #4756 of 4874

Hello to you all! 

 

Two days ago I recieved my brand new Asus Xonar Essence ST card and I 'd like to thank you all for your valuable knowledge and impressions that are posted in this thread and forum. 

post #4757 of 4874

After two a few days owning the Asus Xonar Essence ST and about a month reading this thread I would welcome some of your valuable help in  the field of op amp swamping or tweaking. 

 

I've done a search in ebay and I'm thinking to buy a few sets of op amps from Burr Brown, Analog Devices and Muses. What would you recomend with your experience backround?

 

I'm interested in gaining more sound stage size and better mids and highs in terms of detail and harmonic richness without loosing in bass performance. All these in comparison with the default op amp set of the sound card.  My Essence ST is installed in my PC which is used in a two channel hi-fi system.

 

Thanks in advance.

 

I would really need some help because this thread is an ocean of information and is easy to loose your way (in good manner)

post #4758 of 4874
Quote:
Originally Posted by Panagiotis View Post
 

After two a few days owning the Asus Xonar Essence ST and about a month reading this thread I would welcome some of your valuable help in  the field of op amp swamping or tweaking. 

 

I've done a search in eBay and I'm thinking to buy a few sets of op amps from Burr Brown, Analog Devices and Muses. What would you recomend with your experience backround?

 

I'm interested in gaining more sound stage size and better mids and highs in terms of detail and harmonic richness without loosing in bass performance. All these in comparison with the default op amp set of the sound card.  My Essence ST is installed in my PC which is used in a two channel hi-fi system.

 

Thanks in advance.

 

I would really need some help because this thread is an ocean of information and is easy to loose your way (in good manner)

Start out with the LME49720 DIP-8, they are very low cost.

 

Check out the AD797BR and LME49990

 

http://www.ebay.com/itm/mod-1x-AD797BR-Dual-to-Mono-Op-amp-module-ultralow-noise-replace-a-dual-op-/261266640288?pt=LH_DefaultDomain_0&hash=item3cd4b48da0

 

http://www.ebay.com/itm/DUAL-SOIC-LME49990-DIP8-ADAPTER-/190999739495?pt=US_Amplifier_Parts_Components&hash=item2c7878bc67

post #4759 of 4874

Thanks alot!

 

They look smaller than the usual opamps but I guess this hasn't got to do anything with the performance...

post #4760 of 4874

Thanks alot!

 

These op amps look smaller than usual but I guess this has nothing to do with the performance...

post #4761 of 4874
post #4762 of 4874

I was also wondering of the possibility to use Jfets.

 

I'm sorry if I'm tiring you with lots of questions but in this you are the people with richest experience on Essence ST(X) tweaking.:rolleyes:

 

So is it a good idea to use jfets? (or all the op amps are jfets and I'doing a silly question?):confused_face(1):

 

I have also tried to find an online store to buy burson op amps and I cannot. They are pretty expensive also...:confused_face: 


Edited by Panagiotis - 12/27/13 at 10:49pm
post #4763 of 4874
Quote:
Originally Posted by Panagiotis View Post
 

Thanks alot!

 

They look smaller than the usual op-amps but I guess this hasn't got to do anything with the performance...

The current op-amps in the Essence ST are dual channel DIP-8 op-amps.

(As well as the LME49720NA).

The AD797BR and LME49990 are SOIC single channel op-amps.

So 2 SOIC op-amps need to be soldered on to a Dual SOIC to DIP-8 adapter, to work with the Essence ST.

post #4764 of 4874
Quote:
Originally Posted by PurpleAngel View Post
 

The current op-amps in the Essence ST are dual channel DIP-8 op-amps.

(As well as the LME49720NA).

The AD797BR and LME49990 are SOIC single channel op-amps.

So 2 SOIC op-amps need to be soldered on to a Dual SOIC to DIP-8 adapter, to work with the Essence ST.

Thanks for the answer. I haven't got any experience on these things and I'm asking in order to learn something.:normal_smile :

post #4765 of 4874
Quote:
Originally Posted by Panagiotis View Post
 

Thanks for the answer. I haven't got any experience on these things and I'm asking in order to learn something.:normal_smile :

Your allowed 3.4 (three point four) questions per 24 hours period on Head-Fi, hopefully that is enough.

After that it's $124,000 per additional question with in a 24 hour period.

Just make out the check to the California Audio Sound Headphoners, or C.A.S.H for short.

post #4766 of 4874

Would any Australian Head-Fi member be willing to mod an STX for me? It's just that I don't have a soldering iron and I have a rather bad case of shaky hands which makes using a soldering iron rather risky. That, and I have bad experiences with modding STXs.

post #4767 of 4874

I've just bought the Xonar Essence STX a few days ago. I have two problems with it:

 

1. There isn't enough bass, even the on-board sound card gives more bass. Maybe I need to tweak something in the Audio Center?

 

2. In order to squeeze 100% from this card I have to install this WASABI thing(using Win 7)?

 

 

I'm using it only with my Sennheiser HD 380 Pro headphones, not going to use any external speakers and/or amp/DAC.

 

 

Anyone knows?

 

TIA

post #4768 of 4874
Quote:
Originally Posted by rfe777 View Post
 

I've just bought the Xonar Essence STX a few days ago. I have two problems with it:

1. There isn't enough bass, even the on-board sound card gives more bass. Maybe I need to tweak something in the Audio Center?

2. In order to squeeze 100% from this card I have to install this WASABI thing (using Win 7)?

I'm using it only with my Sennheiser HD 380 Pro headphones, not going to use any external speakers and/or amp/DAC.

Did you disable the motherboard's on-board audio? in the BIOS.

Try installing the Unified Xonar drivers.

http://maxedtech.com/asus-xonar-unified-drivers/

Try upping the STX gain to 64-300

For music audio, do you set the STX's "Audio channel" to 2-channel?

 

Try using Foobar2000 (with component updates) for playing music audio files

post #4769 of 4874

My Essence ST is also new, but I didn't have any problem. It haw excellent performance across the spectrum with the stock opamps. Have yoy checked your earphones's impendance in order to adjust the proprer value in the xonar driver softrware?

 

Have a second, good look in the manual of the soundcard, read it carefully, and then set the card for playback. 

post #4770 of 4874
Quote:
Originally Posted by PurpleAngel View Post
 

Did you disable the motherboard's on-board audio? in the BIOS.

Try installing the Unified Xonar drivers.

http://maxedtech.com/asus-xonar-unified-drivers/

Try upping the STX gain to 64-300

For music audio, do you set the STX's "Audio channel" to 2-channel?

 

Try using Foobar2000 (with component updates) for playing music audio files

 

 

I' ve came across, many times, on comments concerning the Unified Xonar drivers and I was quite qurious, using them. What do they offer more than the Asus Drivers? If I use them will I have sonic improvement?

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