Asus Essence One Headphone Amp/DAC (CeBIT 2011) - Page 98

Quote:

Originally Posted by cssarrow 

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

Tim, should I plug my JH16 (it costs more than the Muses) and see.

Or is there any other way to test your theory?

Quote:

Originally Posted by turokrocks 

Tim, should I plug my JH16 (it costs more than the Muses) and see.

Or is there any other way to test your theory?

well i guess you can start with very very low volume and see.

Gain shouldn't be too large of a jump. Probably -3 to 10dB.

Tim

I just plugged JVC HA-FXZ200

 http://www3.jvckenwood.com/accessory/headphone/inner/ha-fxz200/index.html

and the volume is at 9:00.

Quote:

Originally Posted by turokrocks 

I just plugged JVC HA-FXZ200

 http://www3.jvckenwood.com/accessory/headphone/inner/ha-fxz200/index.html

 

and the volume is at 9:00.

9:00 is pretty low, even for my headphones. (HE-500)

AM OR PM?

Might be working.

Tim

Quote:

Originally Posted by cssarrow 

9:00 is pretty low, even for my headphones. (HE-500)

 

AM OR PM?

 

Might be working.

 

Tim

@ 9:00, is the max I can bare with this 16ohms IEM.

The JVC is a very bass head iem, and It sounds amazing with the E1muses.

Quote:

Originally Posted by turokrocks 

@ 9:00, is the max I can bare with this 16ohms IEM.

OK.

It's not auto-adjusting then.

That's way too loud to be 9:00.

I tried my 30ohms headphones (cheap), and it's 3x louder than the HE-500.

Tim

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   and  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 ..."

That gain jumper must be using the same invisibility cloak as Harry Potter.

Tim

Quote:

Originally Posted by cssarrow 

That gain jumper must be using the same invisibility cloak as Harry Potter.

 

Tim

Wait, let me do my magic and summon an Asus rep. in here like I did last time.

Quote:

Originally Posted by cssarrow 

That gain jumper must be using the same invisibility cloak as Harry Potter.

 

Tim

Homenum Revelio

Tim

Quote:

Originally Posted by Whit3Rav3n 

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.

Try the LME49990's if you got the chance. They perform a great job in the I/V. Extremly transparent, excellent channel separation and rather smooth highs. They add more detail to the base whithout making them sound thin. However, they tend to get quite hot, even more than the AD797BR's.

Quote:

Originally Posted by Kenion 

Try the LME49990's if you got the chance. They perform a great job in the I/V. Extremly transparent, excellent channel separation and rather smooth highs. They add more detail to the base whithout making them sound thin. However, they tend to get quite hot, even more than the AD797BR's.

The LME49990 oscillates more than the AD797 in any slot on the E1.

Quote:

Originally Posted by Sk1n5 

The LME49990 oscillates more than the AD797 in any slot on the E1.

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