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Are there amps that do both orthodynamic & high efficiency headphones well?

post #1 of 9
Thread Starter 

 

I’m starting to get into this headphone thing and looking for a good amp.  I can’t tell what headphones I’ll want to play with in the future.  So I’m thinking about one, good, general purpose amp.  Something that can have the juice to run orthodynamics, high efficiency headphones, and everything in between.  Does such an amp exist?  Or do you need 2 amps, essentially, to cover all the headphone bases?

 

From my reading, I gather that the really high powered amps like a Lyr do great with orthodynamics.  But then do not do well with high efficiency headphones- low level noise and such.  Conversely, a good amp for most headphones will not have enough oomph for orthodynamics.  

 

My question is pretty general.  But more specifically, I’m hoping to not go over $500 although I could if there was a good reason.  No preference on tubes versus solid state because they each have their strengths.  No DIY unless it can be built in less than a day due to an unfortunate lack of free time.  

 

Thanks!

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post #2 of 9

Contrary to what you often read on Head-Fi, orthodynamics are not some magical kind of transducer which needs vastly more power than their sensitivity ratings imply. They are often harder to drive than their dynamic counterparts, but 6W headphone amplifiers are pointless overkill.

The simple way to make your decision is to look at power ratings of amplifiers that you are interested in. Ideally you'll be wanting amplifiers that can pump between 0.5-1W into around 50 ohm impedances, to be on the safe side. This is for the ultra-low sensitivity HifiMan orthodynamics - for products such as the Audeze LCD2s (more efficient orthos) you'll be happy with quite a bit less power than that.

 

post #3 of 9

Based on my research and experience.

The one amp I would suggest is the Violectric V200.

 

I managed to audition this amp with multiple headphones:

- LCD-2 R2 (50 ohm, or was it 60?)

- Grado HF2 (32 ohm) 

- Sennheiser HD600 (300 ohm) 

- Westone ES5 (20 ohm) 

 

You can adjust the gain of this amp on the back panel based on what type of headphones you are using.

Also, when you look at the technical specifications of the amp, particularly its output @ varying ohm, it is well suited for driving various headphones.

It had a black black background even with my very efficient and sensitive ES5s and drove the LCD-2 R2 with ease.

 

Of course, it is double your budget -_-;;

 

If I were to keep the rest of my headphones, I would have bought this amp.

But I decided to sell off most of my other headphones and stick with the LCD-2 R2 + Schiit Lyr combo.

post #4 of 9
Thread Starter 

Thanks, Willakan.  That's a good perspective.  I'm still learning about all of this.  So it's interesting to hear that I (we?) might not need as much power as people claim.  My guess is that the sports car forums probably also are talking about how they need more power.  smile.gif

 

So up to 1 W at 50 ohms to be safe.  But as I look at the specs of various amps, it's hard to compare.  Each company uses a different means of reporting their specs. 

 

I'll keep looking.  If there are any particularly appealing amps that would suit all headphones, I'm always up for recommendations and some more reading.  Thanks.
 

Quote:
Originally Posted by Willakan View Post

Contrary to what you often read on Head-Fi, orthodynamics are not some magical kind of transducer which needs vastly more power than their sensitivity ratings imply. They are often harder to drive than their dynamic counterparts, but 6W headphone amplifiers are pointless overkill.

The simple way to make your decision is to look at power ratings of amplifiers that you are interested in. Ideally you'll be wanting amplifiers that can pump between 0.5-1W into around 50 ohm impedances, to be on the safe side. This is for the ultra-low sensitivity HifiMan orthodynamics - for products such as the Audeze LCD2s (more efficient orthos) you'll be happy with quite a bit less power than that.

 



 


Edited by DrJon - 9/13/11 at 4:54pm
post #5 of 9
Thread Starter 

Hi lootbag,

 

Yes, I've seen the very positive views on the Violectrics.  Like you say, $1,000 is a bit steep for me at this point- when I have not yet committed fully to the hobby.  smile.gif

 

But you have a Lyr.  It makes me wonder if a 2 amp setup is desirable.  Get a Lyr for those headphones needing a lot of power.  Then a lower powered amp for the less power hungry headphones.  If keeping with Schiit for the sake of argument, maybe an Asgard.  An Asgard and a Lyr come in much cheaper than a Violectric.  Or could an Asgard or Lyr be good enough for a one amp system that works well for most headphones?
 

Quote:
Originally Posted by lootbag View Post

Based on my research and experience.

The one amp I would suggest is the Violectric V200.

 

I managed to audition this amp with multiple headphones:

- LCD-2 R2 (50 ohm, or was it 60?)

- Grado HF2 (32 ohm) 

- Sennheiser HD600 (300 ohm) 

- Westone ES5 (20 ohm) 

 

You can adjust the gain of this amp on the back panel based on what type of headphones you are using.

Also, when you look at the technical specifications of the amp, particularly its output @ varying ohm, it is well suited for driving various headphones.

It had a black black background even with my very efficient and sensitive ES5s and drove the LCD-2 R2 with ease.

 

Of course, it is double your budget -_-;;

 

If I were to keep the rest of my headphones, I would have bought this amp.

But I decided to sell off most of my other headphones and stick with the LCD-2 R2 + Schiit Lyr combo.



 

post #6 of 9
Quote:
Originally Posted by Willakan View Post

Contrary to what you often read on Head-Fi, orthodynamics are not some magical kind of transducer which needs vastly more power than their sensitivity ratings imply. They are often harder to drive than their dynamic counterparts, but 6W headphone amplifiers are pointless overkill.

The simple way to make your decision is to look at power ratings of amplifiers that you are interested in. Ideally you'll be wanting amplifiers that can pump between 0.5-1W into around 50 ohm impedances, to be on the safe side. This is for the ultra-low sensitivity HifiMan orthodynamics - for products such as the Audeze LCD2s (more efficient orthos) you'll be happy with quite a bit less power than that.

 


 

On my HE-6 I was using an amp rated at  measured peak voltage into 55 Ohms 11.84 Volts with 215 mA, 2.55 watts. Gain was at 10.5. I specifically asked the amp maker to measure it at around that impedance. It was clipping.

post #7 of 9

What was the amp in question?

post #8 of 9
And bear in mind that if you double the power, the sound only get 3 dB louder, that's right, 2W is only 3 dB louder than a single watt, and 6 dB louder than 500 mW.
And with only 250 mW @ 50 ohms (peak capacity, not even RMS), the LCD-2 can reach whooping 115 dB peaks, which means 100 dB average listening volume for music which is already considered as dynamic.

And 100 dB is LOUD...
And a lot of desktop amps reach 250 mW RMS.
post #9 of 9

 

Quote:
Originally Posted by khaos974 View Post

And bear in mind that if you double the power, the sound only get 3 dB louder, that's right, 2W is only 3 dB louder than a single watt, and 6 dB louder than 500 mW.
And with only 250 mW @ 50 ohms (peak capacity, not even RMS), the LCD-2 can reach whooping 115 dB peaks, which means 100 dB average listening volume for music which is already considered as dynamic.

And 100 dB is LOUD...
And a lot of desktop amps reach 250 mW RMS.

Hence why I asked for the amp - a suspicion it was from the "numbers are for scopes, not for listening" school of design, shall we say?

Suffice to say 2W into 50 ohms would, unless mathematics has broken since I last did some, should drive the HE-6s pretty damn loud, let alone the LCD-2s!
 

 


Edited by Willakan - 9/15/11 at 9:30am
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