[cssarrow]

Kenion likes to use two of the "hottest" op-amps.
 
Jokes.
 
Tim

 

[Whit3Rav3n]

Actually the 49720ha in the lpf is also running very hot.

 

[cssarrow]

I tried the 49720NA in LFP, and they're only warm. never hot.
 
 

 
 

 

 

 

 

 

 
I'm conducting some testing today with my HE-500.
 
Let's see how well it goes.
 
Tim

 

[Kenion]

Quote:

Kenion likes to use two of the "hottest" op-amps.
 
Jokes.
 
Tim

Yeah, I'm fine with that. I can hear & feel da heat!
 

 
 
 
Quote:

I tried the 49720NA in LFP, and they're only warm. never hot.
 
 

 
 

 
Thats not even an E1 anymore...

 

[cssarrow]

Hey hey, don't be mad my Essence One Pokemon involved into Essence Two before yours ok?
 
Tim

 

[Sk1n5]

Quote:

Yeah, sadly... however the sound/fidelity in combination with the AD797BR's is outstanding. Never heard so much detail out of my music before.

I tried out my LME49990s with the AD797Bs again. I even equipped the rest of my AD797Bs with decompensation capacitors to run a full AD797B setup. Then went back to OPA627BMs in the LPF and OPA627AUs in the buffer. The 627s just make it sound more relaxed than any other combination. The 627s in those two positions make the LME49990s and the AD797Bs sound like they're trying too hard. Like an overemphasis on detail.

 

[cssarrow]

i found the OPA627 to be overemphasis on clarity.
LME49720NA is like that too, but not nearly "trying" as hard.
 
I guess each has their weaknesses.
 
Tim

 

[Kenion]

Quote:

I tried out my LME49990s with the AD797Bs again. I even equipped the rest of my AD797Bs with decompensation capacitors to run a full AD797B setup. Then went back to OPA627BMs in the LPF and OPA627AUs in the buffer. The 627s just make it sound more relaxed than any other combination. The 627s in those two positions make the LME49990s and the AD797Bs sound like they're trying too hard. Like an overemphasis on detail.

The OPA627 seems to be a very interesting chip, however, it's quite expensive.
What are the sonical diffrence between the OPA627BM and the OPA627AU and which one operates "safer" inside the E1?
I may try them out.

 

[Sk1n5]

Quote:

The OPA627 seems to be a very interesting chip, however, it's quite expensive.
What are the sonical diffrence between the OPA627BM and the OPA627AU and which one operates "safer" inside the E1?
I may try them out.

The BM is a metal can, the AU is not. To my ears the BM is slightly superior in every way to the AU.

 

[leeperry]

For the record, my Eximus DP1 is using a pair of OPA627AP as buffers, but when rolling blindly it's always a good idea to use the highest grade available in order to overcome any design mismatch in many people's experience.
 
This said, I rolled genuine OPA627BP's blindly in several DAC's and they sounded utterly dark and veiled. I don't think that shelling out on anything more expensive than the AU/AP grade would too wise, and don't get them for cheap from a chinese seller either as 627 is by far the most counterfeit opamp....or maybe from AudioJade if he has them, as he's not the usual ebay con artist IME but still.

 

[Sk1n5]

Quote:

For the record, my Eximus DP1 is using a pair of OPA627AP as buffers, but when rolling blindly it's always a good idea to use the highest grade available in order to overcome any design mismatch in many people's experience.
 
This said, I rolled genuine OPA627BP's blindly in several DAC's and they sounded utterly dark and veiled. I don't think that shelling out on anything more expensive than the AU/AP grade would too wise, and don't get them for cheap from a chinese seller either as 627 is by far the most counterfeit opamp....or maybe from AudioJade if he has them, as he's not the usual ebay con artist IME but still.

AudioJade is actually where I got them from. Funny that.

 

[Kenion]

Quote:

AudioJade is actually where I got them from. Funny that.

Got my AD797's from them too

 

[acidic]

Quote:

This is the first E1 muses version unboxing in youtube or video. congrats!!

 

[Kenion]

Oh, thats his video? Nice
Subbed

 

[acidic]

Quote:

Plugged my JH16, and I can hear a faint sound at 0 volume. max I can bare is 8:00.
I am 99% sure that there is no gain switch, Asus come on...

. A jumper, but where? at least provide instructions!
Quote:

"Raja explained how

 

the three Essence One versions differ to reflect the price structure of [size=inherit][/size]

 [size=inherit][/size]

 and [size=inherit][/size]

 for the Standard, Plus and Muses respectively. "The difference is in the op-amps. The only other 

minor

 change is that we included a gain jumper on the Muses Edition. This alters the output voltage for someone who wants to use IEMs which won't require as much gain as over-the-ear designs. Setting that jumper to the alternate position lowers the gain and thus achieves more range over the volume control. The Plus Edition includes 4 x TI-OPA2132PA and 2 x NS-LM4562NA that can be interchanged with the standard NE-5534. The Muses Edition simply has the version 01 Muses by default as the very best we've found. It thus ships with no other op-amps to swap. If a user wanted swap options 

out of the box

, the Plus Edition would be the one. For obvious reasons the Plus includes a screw driver and two IC clamps plus step-by-step instructions and the op-amp guide of our listening impressions. The Muses op-amps are of limited supply and ..."

Wait a minute.... which means Asus is doing false advertising? And that explain why it was never even mentioned in their official website's specs/features and was not included in the manual as well? There was also no "real" illustration shown in reviews etc...kind of skeptical - unless you are able to find that hidden jumper (which shouldn't be hidden anyway).
 
That's very disappointing... I thought the Asus Rep here clarify the muses board was made out of another revision which differ from base/plus version?
 
I seriously hope my above statement is wrong though....