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Asus Essence One Headphone Amp/DAC (CeBIT 2011) - Page 77

post #1141 of 3076
Quote:
Originally Posted by turokrocks View Post

Thank you Tim, yep that really sucks, big time. In the end, If I find all doors closed, I will have to ask someone to buy it for me and ship it ,wink.gifand the drinks will be on me, as he will be doing me a big favor.

I would help you, but my credit is already stretched as far as it can handle right now. Sorry buddy!

 

Quote:
Originally Posted by Pippin76 View Post

Hey cssarrow,

 

 

I saw your diagram with recommendations for opamps a few pages back, but just to be sure: what is your top recommendation for the RCA buffer? The LME49710HA? (and will I need an extra adaptor?)

Premade: http://www.ebay.com/itm/LME49710HA-X2-Adaptor-/180872434827?pt=US_Home_Audio_Amplifiers_Preamps&hash=item2a1cd6548b

 

Make it yourself:

http://www.ebay.com/itm/180728972287?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

http://www.ebay.com/itm/261027708584?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

Heatsink: http://www.ebay.com/itm/250975939649?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

Riser: (needed for headphone dip8 sockets) http://www.ebay.com/itm/390422337315?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

You won't need the riser for the RCA Out. For XLR, they're too close together so you're better off using a LME49720HA.

 

I have 6 Gold Plated DIP8 sockets let, if you need them (and can pay $1.95) for shipping, hit me up.

 

Tim

post #1142 of 3076

I got the normal edition.

As posted previously in a different topic I found the bass quite lacky.

I've been sitting at home for weeks now with a broken wrist so I've spend more than enough time listening to this one to confirm that I don't like it's bass as much.

 

So I'm wondering if I should add a separate amp or just get a new pair of cans.

Atm i'm using PC -> USB -> HD650

 

Hmmm... choices ph34r.gif

post #1143 of 3076
Quote:
Originally Posted by Amputate View Post

I got the normal edition.

As posted previously in a different topic I found the bass quite lacky.

I've been sitting at home for weeks now with a broken wrist so I've spend more than enough time listening to this one to confirm that I don't like it's bass as much.

 

So I'm wondering if I should add a separate amp or just get a new pair of cans.

Atm i'm using PC -> USB -> HD650

 

Hmmm... choices ph34r.gif

The orginal essence has a very boomy bass coming from the NE5532 which sounds very bad.

 

I say roll in a few op-amps into the LFP and I/V (op-amps that are better suited for bass) before thinking of buying another headphone amp.

HD-650 lacks with the original essence (5532), i heard it and didn't like it.

 

I can't recommend a good bass op-amp as my preference lies more into mid/high treble and detailed sound stage. Bass i like being there but only as a impact rather than it taking full control of songs.

 

AD797 did good in the I/V for bass and clarity.

OPA627 was all right for the LFP but may sound a little electronic.

 

This way you have leftover cash for a more bass heavy headphone (HE-400 i recommend).

 

Tim

post #1144 of 3076

I found the original E1 to have a very balances bass.  The source is only part of the puzzle as your cans play a large role also in the overall signature.  Sometimes a source and specific cans just don't have the right synergy out of the box, so you can try and roll some opamps or tune the EQ in whatever player you are using -if available as it might give you what you are looking for.


Edited by ROBSCIX - 1/19/13 at 1:01pm
post #1145 of 3076

This question has most likely been asked. Has anyone tried muse01 in headphone buffer as well as I/V and LFP at the same time. if so how does the compare to LME49720HA ?

post #1146 of 3076

They sounded okay in buffer while 49720HA's were in IV/LFP but i haven't tried all 8 with MUSE01's. Too broke for that.

 

Don't think anyone ever will to be honest.

 

Tim

post #1147 of 3076
Quote:
Originally Posted by cssarrow View Post

They sounded okay in buffer while 49720HA's were in IV/LFP but i haven't tried all 8 with MUSE01's. Too broke for that.

 

Don't think anyone ever will to be honest.

 

Tim

Yeah that's fair enough a extra $100 for a test is probably not worth it, be interesting though

 

I'm just about to start my op-amp rolling this week myself after a fellow headfier kindly offered to send some op-amps my way :)

 

This is whats coming 2x OPA2107, 4x OPA2132, 2x LM4562, 4x LME49722 still need to do more research before I get started

post #1148 of 3076
Quote:
Originally Posted by Gandah View Post

Yeah that's fair enough a extra $100 for a test is probably not worth it, be interesting though

 

I'm just about to start my op-amp rolling this week myself after a fellow headfier kindly offered to send some op-amps my way :)

 

This is whats coming 2x OPA2107, 4x OPA2132, 2x LM4562, 4x LME49722 still need to do more research before I get started

That's awesome!

 

I've tested lots too but sticking with the LME49710HA's (dual) in buffers as they sound the best there. MUSE01 sounds great, wouldn't want to replace $50 op amps.

 

Let us know how your op amp rolling comes along.

 

Tim

post #1149 of 3076

Hey there cssarrow, thanks a lot for the information! I am in the process of trying to receive free op amps directly from TI, so am just waiting on that. But what are your impressions for dealing with really sharp treble? I really love the Denon D7000, but the highs are just so painful to listen to once in a while, do you know what op amps/combinations would provide a fix to this?


Edited by qqexpress - 1/20/13 at 12:49pm
post #1150 of 3076
Quote:
Originally Posted by qqexpress View Post

Hey there cssarrow, thanks a lot for the information! I am in the process of trying to receive free op amps directly from TI, so am just waiting on that. But what are your impressions for dealing with really sharp treble? I really love the Denon D7000, but the highs are just so painful to listen to once in a while, do you know what op amps/combinations would provide a fix to this?

I haven't heard the D7000 being treble fatgueing , but if you use the op-amps like OPA1232 and 627 it wouldn't help you out so much in the treble as i've notice a little treble fatigue when using them for I/V or LFP.

The LM4562/LME49720 works okay with softening the treble a little bit but the sharpness may still be there for you as they make vocals more forward and separated.

Try the NE5532 or AD825 for the headphone buffer. If the treble sharpness is only coming out from the headphones and not from RCA or XLR then keep trying two of the same op amps for the buffer for headphone stage. Dont try diferent ones as one opamp in the headphone stage buffers each channel (L and R) separately.

Tim
Edited by cssarrow - 1/20/13 at 3:03pm
post #1151 of 3076
Quote:
Originally Posted by qqexpress View Post

Hey there cssarrow, thanks a lot for the information! I am in the process of trying to receive free op amps directly from TI, so am just waiting on that. But what are your impressions for dealing with really sharp treble? I really love the Denon D7000, but the highs are just so painful to listen to once in a while, do you know what op amps/combinations would provide a fix to this?

The opa1612 in the buffer has smoother highs than the stock 49720. I still have to check but i think the 49720ha also has smoother highs than the plastic one.

post #1152 of 3076
Quote:
Originally Posted by cssarrow View Post

 

Premade: http://www.ebay.com/itm/LME49710HA-X2-Adaptor-/180872434827?pt=US_Home_Audio_Amplifiers_Preamps&hash=item2a1cd6548b

 

Make it yourself:

http://www.ebay.com/itm/180728972287?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

http://www.ebay.com/itm/261027708584?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

Heatsink: http://www.ebay.com/itm/250975939649?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

Riser: (needed for headphone dip8 sockets) http://www.ebay.com/itm/390422337315?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

You won't need the riser for the RCA Out. For XLR, they're too close together so you're better off using a LME49720HA.

 

I have 6 Gold Plated DIP8 sockets let, if you need them (and can pay $1.95) for shipping, hit me up.

 

Tim

 

Thanks for the offer Tim, but for the time being I will only try out the RCA buffer so I wont need a riser, as you say. Will be interesting to hear those metal can ones :)

post #1153 of 3076
Quote:
Originally Posted by Whit3Rav3n View Post

The opa1612 in the buffer has smoother highs than the stock 49720. I still have to check but i think the 49720ha also has smoother highs than the plastic one.

I haven't tried the 1612 yet, but raven is right, the HA has smoother highs than the black plastic one, only by a few hairs though.

However, with two LME4910HA's, you'll notice a larger difference coming from a single black plastic 49720NA.

Quote:
Originally Posted by Pippin76 View Post

 

Thanks for the offer Tim, but for the time being I will only try out the RCA buffer so I wont need a riser, as you say. Will be interesting to hear those metal can ones :)

Great, then you wouldn't be needing extra DIP8 Sockets for rising. 

I noticed a difference when using two LME49710HA's instead of the stock LM4562, even a larger difference changing the RCA capacitor to Elna Silmic II's. 

 

Tim

post #1154 of 3076

evil_smiley.gif I'm afraid that my Essence One won't make it out of this surgery. (soldering process)

 

 

 

About to give it a test.

 

And....IT WORKS!

 

 

 

Noticed some very very good changes in detail, separation, and transparency instantly. Treble was slightly higher (barely), and bass was a little cleaner.

 

Can't wait to add the new WIMA capacitors, aluminum heatsinks, power cord, pci-express cord, and LME49710HA's to be installed..

Along upgrading the black cable underneath the Essence PCB and changing all 3mm LED's (including smd) to red/dark red.

 

 

Tim


Edited by cssarrow - 1/21/13 at 12:03am
post #1155 of 3076

Is this DAC discontinued? Is something else on the way?

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