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Asus Essence One Headphone Amp/DAC (CeBIT 2011) - Page 209

post #3121 of 3129
Quote:
Originally Posted by Wage View Post
 

Does anyone know how to remove the front panel from the Xonar One? I've removed all visible screws but cannot get it off of the volume knobs.

The main reason I need to remove it is to see if I can reseat the volume knobs after turning them too much. They now just turn over and over without stopping (and are left at MAX volume always)


You got a similar problem as mine. Wanted to take the front panel off, and I thought the only way volume knobs would come off is if i turn them past their stop and just unscrew them. But now they just turn over and over without stopping, and I have my volume permanently at 0.

 

You just have to pull the knob straight out though, its hard to get it out since there is no grip at all.

But once you get it off, you'll see hex nut screwed on the shaft, just gotta unscrew those and you'll be able to get the panel off.

 

As for the volume pot, you will have to replace and solder new one in.

post #3122 of 3129
Quote:
Originally Posted by LSD25 View Post

 


You got a similar problem as mine. Wanted to take the front panel off, and I thought the only way volume knobs would come off is if i turn them past their stop and just unscrew them. But now they just turn over and over without stopping, and I have my volume permanently at 0.


 

You just have to pull the knob straight out though, its hard to get it out since there is no grip at all.

But once you get it off, you'll see hex nut screwed on the shaft, just gotta unscrew those and you'll be able to get the panel off.


 

As for the volume pot, you will have to replace and solder new one in.


Sheesh, well thanks for the headsup. I have the E1 MUSES, so guess I'll continue going DACless while I wait for the Essence III to sell stateside then use my MUSES opamps in that. If you have luck with those A10s please post back letting us know; I can probably manage it but am not a soldering guru per se.

 

I kinda broke my pots on purpose out of frustration over the channel imbalance that kept happening OVER AND OVER these past couple weeks. If I had known it was the pot itself that was bad, I probably would've left it alone, but DACless balance >>>>> DAC that keeps deciding to play a song too far left or right mid-playback! Grrrrr...

post #3123 of 3129

Is this our potentiometar here?? RD 904 B10K

post #3124 of 3129
Quote:
Originally Posted by Whit3Rav3n View Post
 

As far as I know the original potentiometer is the alpha rd904 b10k. It has a 6mm shaft. You can buy these here for example: http://www.aliexpress.com/item/ALPHA-RD904-B10K-quadruple-potentiometer-20-mm-half-axial-length/1482759719.html

 

Bought four of these from the linked seller and will report back after soldering. Was originally going to wait for Essence III to start selling stateside, but I have a feeling that may not happen very soon (if at all). There's a guy on eBay selling some from Germany, but the fact that he's charging $150+ more than MSRP (plus $50 shipping) and my chances of RMA are slim because I'm purchasing from some foreign reseller have me gunshy, at least until I see if these replacement pots work -_-

post #3125 of 3129

Let us know, please....

post #3126 of 3129

Bought a used Essence one a few days ago, and - while satisfied - would like to upgrade the op amps to MUSES edition or, to find an even better match.

Just ordered 4 MUSES 01 for I/V replacing, but now I wonder which ones to take for the Low pass filter?

DSD upgrade manual suggests, beside MUSES 02, the AD827SQ - and I wonder has anyone made such a combination?

Another option for the Low pass are LME49990MA (two of them on SOIC DIP as can be bought on ebay or similar)

 

I also wonder could it be possible to drive the AMP from Essence One (RCA or XLR) without anything in the buffer stage? Or how could I try to find fine op amps for the buffer stage with less gain than the stock ones?

Namely, my amp (balanced) has high gain, so the pot is about 10 o'clock at normal listening levels...

Anyone with same gain problems?

post #3127 of 3129
Quote:
Originally Posted by tomsag View Post
 

Bought a used Essence one a few days ago, and - while satisfied - would like to upgrade the op amps to MUSES edition or, to find an even better match.

Just ordered 4 MUSES 01 for I/V replacing, but now I wonder which ones to take for the Low pass filter?

DSD upgrade manual suggests, beside MUSES 02, the AD827SQ - and I wonder has anyone made such a combination?

Another option for the Low pass are LME49990MA (two of them on SOIC DIP as can be bought on ebay or similar)

 

I also wonder could it be possible to drive the AMP from Essence One (RCA or XLR) without anything in the buffer stage? Or how could I try to find fine op amps for the buffer stage with less gain than the stock ones?

Namely, my amp (balanced) has high gain, so the pot is about 10 o'clock at normal listening levels...

Anyone with same gain problems?

Where did you order the 4 MUSES01 from, I'm trying to find a reputable seller.  I have 2 MUSES02 where the low pass filter is currently.

post #3128 of 3129

I've bought them on ebay. They might NOT be the original ones, but I believe in this seller.

Here is the link: http://www.ebay.com/itm/161085567268?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 

Once I have them, will report about the audio quality. Personally, I do believe in this seller, as some Chinese producers buy a big lot and sell some of the quantity to others...

Anyway, I've also purchased some AD827SQ and MUSES 02 and once everything is plugged in,

will be able to get the original Muses edition on listening test.

 

So the real ones will have to sound better than the chinese (if they are fake?). 

will report about this.

post #3129 of 3129

I can recommend the Muses 01 on I/V and AD827SQ on Low Pass. Sounds more precise than the original Muses 01 at the Low Pass.

Very warm and punchy, nice treble with wide soundstage.

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