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Meier OPERA Owners - Page 6

post #76 of 247
One more question (hopefully). Are these mods that you did Hi-Finthen, or is it something you can request when ordering the Opera? I'm particularly interested in the blue LEDs. That just sounds cool.

Thanks.

Quote:
Originally Posted by Hi-Finthen View Post
Dual 'low z" jacks , dialed up 40% gain / 3dbs , resistors changed for soft blue LEDs

Gear mentioned in this thread:

post #77 of 247
Quote:
Originally Posted by strangelove View Post
One more question (hopefully). Are these mods that you did Hi-Finthen, or is it something you can request when ordering the Opera? I'm particularly interested in the blue LEDs. That just sounds cool.

Thanks.
Well yes, I particularly wanted both jacks "low z", and to do so I or you, must order from Meier Audio, as Todd Green (TTVJ) doesn't offer this option. So, in "Opera pre-order e-mails" to Jan Meier, I discussed my wanting the gain increased also. He replied, to do so was "no problem although my request for a 25% increace would yeild a 1.5db change, not much"... I replied I would like a 3db net gain and he agreed to do so, no charge as well as the dual 'low z" option @ no charge.
Because I have a blue indicator stack I prefered blue LEDs, and he agreed to do so for a nominal fee, as well as install required resistors to dimm the brightness on both Blue LEDs. Which also maybe more appealing should the digital input not be used with the blinking.
BTW it is a slow type of blink, much like lights on a water tower, slowely going off then slowly back on. Rather than blinking quickly!

Dr. Jan is very responsive to his email dutys, twice each day, it seems. They're 6 hours ahead of us, of course, should you try to catch him durring shop hours and with regards to replys.

My amp shipped the same day I paid by PayPal, work order changes inclusive. Very professional transactions / communications and top notch products, from a long time Head-Fi sponsor

Good luck~
post #78 of 247
how does this compare to the benchmark and grace boxes? seems similar. dac/headamp/psu all in one box. similar headamp components to the benchmark(buf634 in loop). similar pricetag. looks a lot cooler if that counts.

edit: ok, so most people say the dac1's headamp is not nearly as good as the opera. strange. i don't see this in the specs but i guess listening is the proof. i'd have to think the dac1's dac is better. as i always say, it is not a matter of the dac1 being "not so good". it is a matter of people not liking fast/neutral/analytical/resolved sound. everyone wants warm and spacious.

music_man
post #79 of 247
Quote:
Originally Posted by music_man View Post
how does this compare to the benchmark and grace boxes? seems similar. dac/headamp/psu all in one box. similar headamp components to the benchmark(buf634 in loop). similar pricetag. looks a lot cooler if that counts.

edit: ok, so most people say the dac1's headamp is not nearly as good as the opera. strange. i don't see this in the specs but i guess listening is the proof. i'd have to think the dac1's dac is better. as i always say, it is not a matter of the dac1 being "not so good". it is a matter of people not liking fast/neutral/analytical/resolved sound. everyone wants warm and spacious.

music_man
Man, over on Audiogon I see what must be folks who also don't prefer(as you say), "fast/neutral/analytical/resolved sound", selling off their Dac1s.

Oh course, each offering in this class adds its "voice" to different degrees, of questionably those traits you put to words, if accurate, ascribed to one. Perhaps to a fault in some cases.

I believe each and every product in this class does have a certain "voice' as well as slight differences in build quality for different applications and implementation of proprietary design achieving its overall effect.

Which in the case in point, the Corda Opera, was designed specifily for the purpose of ours here, headphone listening as its priority. And perhaps a case can be made in terms of specs which you refer to, or looks even, or the words choosen to describe sound differences, I don't find it hard to conclude a purpose built piece would be a better choice than others offered at similar price point.

As for the Operas DAC / preamp function, I am fortunate with its "voice" which mates up synergistically to my 30w digital monoblocks driving my '80 Klipsch Cornwalls stereo speakers. The midrange of the Klipsch can become shouty if care is not paid attention to with associated gear, which is why I formerly used a Foreplay tube preamp.

I'm encouraged by the sound of the Cornwalls even when the Foreplay is removed from the chain. Even more so with it in line both sonicaly and for its utility, fronted by the SB3 as transport to the Opera, on desk stack, for my at monitor headphone listening and control center for my home stereo system located elsewhere... Of course, someone wanting a rack mount component may be inclined to look towards those form factors and "looks" as you say as well as perhaps more accurate (to be defined), sonics etc.

Certainly can pick up a benchmark relatively cheaply on Audiogon for headphone listening, so that's an encouraging factor too.

I seem to think, these pioneers of headphone listening and their purpose driven designs assembled here, represented by names like Gilmore, Meier, Samuals and others, know something about headphone listening that goes beyond products designed by spec. for other purposes and at varrious price points especially designed to be a single component in any one system.

I do think long term listening with an individuals wide ranging music of choice, as always would be the best way to judge the utility of the products offered us.

And here too, is where I must give thanks to Todd Green for offering the Corda Opera loaner program, for my audition of this piece aside my Mapletree / former DAC, with my phones and music, as well as with my specific home stereo components. Only then did I realize the giant step in the difference such an upgrade would afford, rather than reading opinions and speculating. Thanks Todd!

And I do think that is just what was done by Iron_Dreamer well put together review, whos critical evaluation I trusted and weighed heavily upon in my decision to purchace this Corda Opera for my purposes.

Good luck in your best decisions~
post #80 of 247
Thread Starter 
OH SHNAPP!!!


post #81 of 247
what the heck does that mean? so one more person that doesnt like the dac1. whatever.

music_man
post #82 of 247
Thread Starter 
Relax! I was just kidding.. I like everything!
post #83 of 247
Quote:
Originally Posted by music_man View Post
what the heck does that mean? so one more person that doesnt like the dac1. whatever.

music_man

Could you be pointedly, more specific please?
post #84 of 247
Thread Starter 
Quote:
Originally Posted by Hi-Finthen View Post
Could you be pointedly, more specific please?
Hi-finthen, go BACK 1 page... you'll see
post #85 of 247
^ Oh, I see...Shouldn't simply dismiss with prejudice, a soundtrack which hasn't yet been heard thou'...But I don't think I would like it either

On a more serious note, I'm trying to decide on which can simply MUST be heard with the Corda Opera that I haven't tried yet.

Research continues......

I now wished I took Asr up on his kind offer of doing a review of his AT-AD-2000 Hmmm.....
post #86 of 247
Quote:
Originally Posted by Hi-Finthen View Post
Well yes, I particularly wanted both jacks "low z", and to do so I or you, must order from Meier Audio, as Todd Green (TTVJ) doesn't offer this option. So, in "Opera pre-order e-mails" to Jan Meier, I discussed my wanting the gain increased also. He replied, to do so was "no problem although my request for a 25% increace would yeild a 1.5db change, not much"... I replied I would like a 3db net gain and he agreed to do so, no charge as well as the dual 'low z" option @ no charge.
Because I have a blue indicator stack I prefered blue LEDs, and he agreed to do so for a nominal fee, as well as install required resistors to dimm the brightness on both Blue LEDs. Which also maybe more appealing should the digital input not be used with the blinking.
BTW it is a slow type of blink, much like lights on a water tower, slowely going off then slowly back on. Rather than blinking quickly!

Dr. Jan is very responsive to his email dutys, twice each day, it seems. They're 6 hours ahead of us, of course, should you try to catch him durring shop hours and with regards to replys.

My amp shipped the same day I paid by PayPal, work order changes inclusive. Very professional transactions / communications and top notch products, from a long time Head-Fi sponsor

Good luck~
Hi Hi

I am becoming increasingly interested in what you are doing with the Opera.

Why do you want 2 low z jacks?

What sonic advantage is to be gained from low z Vs high Z with standard Beyer or Senn headphones?

How do low z 701s react to a high Z output?

And could you elaborate on the gain change you requested? How does this differ from the stock gain switch?

I read that the Opera compares very favorably with the GS-1, but is it a significantly better amp or just that it has a built in DAC?

I know, questions, questions, questions, but it sounds like you are on to something.....

USG
post #87 of 247

Hi Hi


Hi guy~



I am becoming increasingly interested in what you are doing with the Opera.

Why do you want 2 low z jacks?


1. For two person listening at once, at the same listening levels then only dependant upon phone of choice being of similar efficiency, of course.

There is about an 8db(?), drop of gain with the "high Z" vs "Low z" jack...



What sonic advantage is to be gained from low z Vs high Z with standard Beyer or Senn headphones?



2. In my testing[ongoing audition], the 990s present with noted, albeit slight, better control and focus which is apparent plugged "low z" vs "120ohm high Z" with a slight edge or aggressiveness in the former case, vs a more (to use a misplaced though understandable term), so analog tilted presentation of the High Z jack ...

I haven't owned 650s for over a year now. Although, I'd be interested to try them again, on audition perhaps, I doubt I would buy them based upon my previous understanding of their signature and my now known preferances...




How do low z 701s react to a high Z output?




3. Again, I've found for the same reasons above with the 990s, both with the k701s and k501s I prefer the 'low z" jack...




And could you elaborate on the gain change you requested? How does this differ from the stock gain switch?




4. Same low / high gain switch difference , however with an increase of 3dbs I can utilize the low gain position (also best for preamp function), thus driving my k701s to prefered (albeit still low) listening levels in the vol pots upper limit.





I read that the Opera compares very favorably with the GS-1, but is it a significantly better amp or just that it has a built in DAC?



5. Only assumptions on my part, as I have not auditioned the GS-1 but I assume they both compare favorably with perhaps a slight but harder edge typical to the Gilmore based designs by Justin vs a typical Meier based design in terms of sonic signature.

Coming from the tube arena with the Mapletree and my previous use of tubes, Foreplay preamp, used to soften the less desirable qualities (edginess) of digital sources and S.S. amps driving my Cornwalls; I'm relieved to hear the nonfatiguing presentation the Meier designs and this Corda Opera specifically, bring to my long term listening sessions, with a widening choice of music well played.


I know, questions, questions, questions, but it sounds like you are on to something.....

USG



6. I'm onto the end of this fun thou' madening chase to match components, with this one neutral, balanced and dynamic center piece providing for my peak musical experiences with my music and headpones of choice !

Although the journey was enlightening at each successive step and evolution of my systems, as I told Jan, I believe I'm done now, with the listening satisfaction and utility the Corda Opera provides. And that's also why I wanted some custom features.




_____________
post #88 of 247
Quote:
Originally Posted by Hi-Finthen View Post

Hi Hi


Hi guy~



I am becoming increasingly interested in what you are doing with the Opera.

Why do you want 2 low z jacks?


1. For two person listening at once, at the same listening levels then only dependant upon phone of choice being of similar efficiency, of course.

There is about an 8db(?), drop of gain with the "high Z" vs "Low z" jack...



What sonic advantage is to be gained from low z Vs high Z with standard Beyer or Senn headphones?



2. In my testing[ongoing audition], the 990s present with noted, albeit slight, better control and focus which is apparent plugged "low z" vs "120ohm high Z" with a slight edge or aggressiveness in the former case, vs a more (to use a misplaced though understandable term), so analog tilted presentation of the High Z jack ...

I haven't owned 650s for over a year now. Although, I'd be interested to try them again, on audition perhaps, I doubt I would buy them based upon my previous understanding of their signature and my now known preferances...




How do low z 701s react to a high Z output?




3. Again, I've found for the same reasons above with the 990s, both with the k701s and k501s I prefer the 'low z" jack...




And could you elaborate on the gain change you requested? How does this differ from the stock gain switch?




4. Same low / high gain switch difference , however with an increase of 3dbs I can utilize the low gain position (also best for preamp function), thus driving my k701s to prefered (albeit still low) listening levels in the vol pots upper limit.





I read that the Opera compares very favorably with the GS-1, but is it a significantly better amp or just that it has a built in DAC?



5. Only assumptions on my part, as I have not auditioned the GS-1 but I assume they both compare favorably with perhaps a slight but harder edge typical to the Gilmore based designs by Justin vs a typical Meier based design in terms of sonic signature.

Coming from the tube arena with the Mapletree and my previous use of tubes, Foreplay preamp, used to soften the less desirable qualities (edginess) of digital sources and S.S. amps driving my Cornwalls; I'm relieved to hear the nonfatiguing presentation the Meier designs and this Corda Opera specifically, bring to my long term listening sessions, with a widening choice of music well played.


I know, questions, questions, questions, but it sounds like you are on to something.....

USG



6. I'm onto the end of this fun thou' madening chase to match components, with this one neutral, balanced and dynamic center piece providing for my peak musical experiences with my music and headpones of choice !

Although the journey was enlightening at each successive step and evolution of my systems, as I told Jan, I believe I'm done now, with the listening satisfaction and utility the Corda Opera provides. And that's also why I wanted some custom features.




_____________
Hi

Why should a high Z HP like the Beyers sound better from a low z connection? I'm going to have to do some more reading because I don't fully understand the "resistor - 120 ohm" thing.... you have any insights into what's going on??

USG
post #89 of 247
Quote:
Originally Posted by upstateguy View Post
Hi

Why should a high Z HP like the Beyers sound better from a low z connection? I'm going to have to do some more reading because I don't fully understand the "resistor - 120 ohm" thing.... you have any insights into what's going on??

USG
Saint.panda very well explained it in his closed headphones review
http://www.head-fi.org/forums/showthread.php?t=221069

Quote:
Originally Posted by saint.panda
Serial Resistance Adapters (e.g. 120 Ohm or 75 Ohm)
Certain headphones like the Beyerdynamic DT 831 or DT 660 benefit from the use of a serial 120 Ohm adapter39 that is put in-between the headphone plug and the headphone jack. While this reduces overall efficiency, which means the headphone becomes harder to drive, it can also “correct” unwanted deviations in the frequency response and make the sound more pleasant. Usually, you can foretell the effects of an added serial resistance by looking at a headphone’s impedance curve.
For sound quality, I recommend using the 120 Ohm with the Beyerdynamic DT 660, DT 831 and Ultrasone HFI 650 mainly to tame the brightness and add some more presence to the lower midrange. The Ultrasone, however, is an otherwise efficient portable headphone that will most likely require an amp after adding the 120 Ohm resistance.
One reason the Beyerdynamic headphones might benefit from a 120 Ohm adapter is because there used to be different standards for the output impedance of headphone amps. Nowadays, close to 0 Ohm is the standard but some receiver jacks still have an output impedance of 120 Ohms. Headphones like the DT 831 might have been designed with an amp’s output impedance of 120 Ohms in mind.
The Etymotic ER-4P benefits from a 75Ohm adapter or adapter cable and the ER-4S is in fact just an ER-4P with an internally added serial resistance of around 75 Ohm.
The technical background behind adding serial resistance to a headphone has to do with damping factor.
post #90 of 247
then don't "dismiss it with prejudice"! i did not like the dac1 at first. then i realised it was the most true to the source equipment that i had ever heard. so many people are saying something is not good just because they read what others said. they did not even hear it in most cases.

it is getting a bad reputation all over by people that have not even heard it. to be honest they still probably wouldn't like it. it is not for most people. some people may even say it is "not" true to the source after they hear it. they may say it is no good for this reason or that. thin/cold/steril is what is most often said about it. or simply "not so good".

the opera is tailored to a specific sound. it is made to be "enjoyable". it is for enjoying listening to headphones. it fits most peoples idea of what is enjoyable. to that effect it serves well. the dac1 is an engineering tool. it is made to be highly revealing. it does not "play nice". the opera plays very pretty on the other hand. most people in this hobby will prefer the latter. this is why the dac1 gets a bad reputation. it was not originally designed for audio/headphiles. this is like complaining that a lamborghini gets poor gas mileage. then it is just not right for you. that does not mean it "sucks".

i will say this as clear as i can. myself along with many other recording engineers use the dac1 to record the cd's many people enjoy. we use it because we can hear exactly what we have recorded. it reveals exactly any mistakes or adjustments we make. if you want to hear your real recording this is it! most people simply don't. they won't admit it but they want electronics that all add some sort of signature to the signal chain.

as far as the "you got served" goes i don't think he was even trying to insult me as you had thought. that was unwarranted. i understand it was in good fun so i do not mind. the intresting part is i "got served" by someone that apparently has not heard it either

music_man
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