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Dan Clark Expanse Headphone Review

Rate this headphone:

  • 1. Poor (headless panther)

    Votes: 10 2.6%
  • 2. Not terrible (postman panther)

    Votes: 13 3.4%
  • 3. Fine (happy panther)

    Votes: 66 17.5%
  • 4. Great (golfing panther)

    Votes: 289 76.5%

  • Total voters
    378
I hear a click when I press on the ear cups esp the right side.
Thanks for the insight. I did not test that. Specifically, when I listen to them at the audio show. But if I get a chance to listen to them again, I will definitely test it.
I did like how it sounds and I like the semi-open design rather than being 100% open.
Topping G5 (reliability aint great) or Chord Mojo 2 (Price aint great)
Anyone tried the newer FiiO stuff? I don't see any reviews here but FiiO has a great history and I've personally never had an issue with reliability on their products even at a lower price.
 
Has anyone successfully replaced the earpads w/ anything else?
I've developed some sort of allergic reaction to the Expanse earpads and am hoping to find options other than selling them :(

I've replaced the pads on some of my older Sennheisers with some Brainwavz pads that don't seem to cause the same irritation... doctor said it was contact dermatitis. Not certain yet if it's the pad material or something else. I'm that guy that cut a slot into his earpads to allow his glasses to "pass through", so I already have a spare set of replacement OE pads :D Anyway, Brainwavz doesn't list any Dan Clark compatible pads, but I figure I'd measure them to see how similar the shapes are. Dekoni seems to have some that fit other models, but not the Expanse.
 
Has anyone successfully replaced the earpads w/ anything else?
I've developed some sort of allergic reaction to the Expanse earpads and am hoping to find options other than selling them :(

I've replaced the pads on some of my older Sennheisers with some Brainwavz pads that don't seem to cause the same irritation... doctor said it was contact dermatitis. Not certain yet if it's the pad material or something else. I'm that guy that cut a slot into his earpads to allow his glasses to "pass through", so I already have a spare set of replacement OE pads :D Anyway, Brainwavz doesn't list any Dan Clark compatible pads, but I figure I'd measure them to see how similar the shapes are. Dekoni seems to have some that fit other models, but not the Expanse.
As an idea is it possible to spray or stick some kind of coating (that wouldn't cause contact dermatitis to the contact face of the stock earpads)? That way you can hopefully retain the intended tuning that stock earpads provide whilst avoiding contact dermatitis. Perhaps some other members here reading this would have some ideas? What about those sprays that waterproof jackets, perhaps if you're not allergic to the contents of that spray then that would create a barrier against the material in the pads that you are allergic too.
 
As an idea is it possible to spray or stick some kind of coating (that wouldn't cause contact dermatitis to the contact face of the stock earpads)? That way you can hopefully retain the intended tuning that stock earpads provide whilst avoiding contact dermatitis. Perhaps some other members here reading this would have some ideas? What about those sprays that waterproof jackets, perhaps if you're not allergic to the contents of that spray then that would create a barrier against the material in the pads that you are allergic too.
Yeah, good call...

I've got some velvet laying around that I got for my media room, but I can probably find some velour similar to what's used on my older headphones.
From what I'm seeing, the synthetic suede used by the DCE's is made of polyester where velour might be cotton or a cotton/poly blend.
And I think the Drop Aeon Closed X I had previously were leather... and those were fine. *shrug*
 
Yeah, good call...

I've got some velvet laying around that I got for my media room, but I can probably find some velour similar to what's used on my older headphones.
From what I'm seeing, the synthetic suede used by the DCE's is made of polyester where velour might be cotton or a cotton/poly blend.
And I think the Drop Aeon Closed X I had previously were leather... and those were fine. *shrug*
If you do stick something on the contact surface try to limit it just to the contact surface because if you change the material on the inside of the cup then I'm thinking you could change the tuning of the headphone as the reflections/acoustics inside the earcup could be affected. You'd also want whatever you stick on top to be as thin as possible so you don't really want to change the thickness of the pads, which is one reason why I had the idea of the spray rather than any materials or anything. If that waterproofing spray for jackets makes jackets waterproof then maybe that will create enough of a barrier between the pad & your skin for instance.
 
Hi everyone!

If I see technical questions in the thread I'll update this post with responses so it's easy for folk to find.

Cheers,

Dan
Hello, it is an honor to ask you a question!

I have noticed that the low-frequency impedance of the Expanse is slightly elevated, unlike the flat impedance curve of most planar headphones, and it is also significantly different from the impedance characteristics of dynamic drivers. Could you please explain why this is the case? In other words, could you explain the cause of such a unique impedance curve in the Expanse?
 
Hello, it is an honor to ask you a question!

I have noticed that the low-frequency impedance of the Expanse is slightly elevated, unlike the flat impedance curve of most planar headphones, and it is also significantly different from the impedance characteristics of dynamic drivers. Could you please explain why this is the case? In other words, could you explain the cause of such a unique impedance curve in the Expanse?
Let’s just say shaping the response of an open planar is a very non-trivial problem and that was part of the solution…
 
Has anyone successfully replaced the earpads w/ anything else?
I've developed some sort of allergic reaction to the Expanse earpads and am hoping to find options other than selling them :(

I've replaced the pads on some of my older Sennheisers with some Brainwavz pads that don't seem to cause the same irritation... doctor said it was contact dermatitis. Not certain yet if it's the pad material or something else. I'm that guy that cut a slot into his earpads to allow his glasses to "pass through", so I already have a spare set of replacement OE pads :D Anyway, Brainwavz doesn't list any Dan Clark compatible pads, but I figure I'd measure them to see how similar the shapes are. Dekoni seems to have some that fit other models, but not the Expanse.
Hm, haven’t heard of this before but we use Alcantara synthetic suede, the stuff they use in cars. A little research showed that while rare there are some people who don’t tolerate it well. Best suggestion is to buy a sheet of lamb leather, back it with a two sided fabric adhesive and put it over the suede. One idea is to PM me and and I can send a pdf you could print to make a cutting template if you want to try this…
 
My preference is for velour pads - so much so that I have gotten a little obsessive about it.
Does DCA have any plans of making velour pads for their headphones?
I’ve owned the old Aeon Open/new Open X/Aeon C and always ended up reaching for my headphones with velour pads on. I would absolutely love to add a DCA to the collection and this little pad dilemma is actually the only thing holding me back.
Ohh the joys of first world problems!
 
My preference is for velour pads - so much so that I have gotten a little obsessive about it.
Does DCA have any plans of making velour pads for their headphones?
I’ve owned the old Aeon Open/new Open X/Aeon C and always ended up reaching for my headphones with velour pads on. I would absolutely love to add a DCA to the collection and this little pad dilemma is actually the only thing holding me back.
Ohh the joys of first world problems!
The pad material may well aid in the tuning of the headphone, and leather/pleather might feel more high end. Don't know though really, so DCA would have to answer.
 
^I know. Actually one of the first things that made me question the audiophile hobby now that I think of it.
The biggest differences I encountered headphone-wise was always with pad-swaps. Yet what I was met by at Head-Fi were dozens upon dozens that felt X pads didn’t change the sound of the headphone…but they heard vast differences between dacs.
Nahh pads are equal to the room in which you place the speakers.
To me personally I wouldn’t mind a slightly less bassy Expanse/Stealth/E3 more in the vein of IEF neutral, and well perhaps something like a pair of velour pads would get me closer.
 
My preference is for velour pads - so much so that I have gotten a little obsessive about it.
Does DCA have any plans of making velour pads for their headphones?
I’ve owned the old Aeon Open/new Open X/Aeon C and always ended up reaching for my headphones with velour pads on. I would absolutely love to add a DCA to the collection and this little pad dilemma is actually the only thing holding me back.
Ohh the joys of first world problems!
Dekoni definitely make aeon pads. Can't be bothered to search their site to see if they do a velour one for it.
 
Best suggestion is to buy a sheet of lamb leather, back it with a two sided fabric adhesive and put it over the suede. One idea is to PM me and and I can send a pdf you could print to make a cutting template if you want to try this…
At what point would it start to impact the FR? As an example, the Sennheiser HD490 Pro offers two sets of pads, with different FR (confirmed by several reviewers). Is adding one layer of lamb leather on top of the standard pads significant? Or is it more the foam and foam density that matters the most?

(Just curious, not expecting an answer if you don’t want to :cool:)
 
The pad material may well aid in the tuning of the headphone, and leather/pleather might feel more high end. Don't know though really, so DCA would have to answer.
Because it's the flat surface that contacts the head there's very little effect, the only problem would be using a very loosely woven fabric that introduces significant leakage, but any leather or suede material would be fine.
 
Because it's the flat surface that contacts the head there's very little effect, the only problem would be using a very loosely woven fabric that introduces significant leakage, but any leather or suede material would be fine.
@Mr Swing King was asking about replacement velour pads though, in terms of if/how the frequency response might be changed. (It's the other guy with the skin reaction problems that was talking about that layer of lambs leather).
 
@Mr Swing King was asking about replacement velour pads though, in terms of if/how the frequency response might be changed. (It's the other guy with the skin reaction problems that was talking about that layer of lambs leather).
Changing pads to another material or vendor would have major sonic impact. Pads are definitely part of the tuning.
 
I posted this on head-fi, but these headphones deserve two reviews. The voicing and bass on these is just perfect. I can't take them off!

My signal path is RME AES OUT -> Benchmark DAC3 -> Benchmark HPA4 -> dual AHB2's (using a custom speaker selector I built with XLR-4 out). They sound awesome connected directly to the AHB2's or just using the HPA4's headphone output.

They are the least efficient headphone I've owned, and I can easily listen to them at ~0dB when using the HPA4's headphone output. No way would I run headphones this good on portable or lesser equipment, so efficiency is not a concern for me. I'll take its accuracy and lack of distortion (even at insane volume levels) over a more efficient headphone any day of the week.

They are phenomenal headphones, if not the best on the market. They certainly live up to their measurements.

4924846884892292975.jpg
 
> No way would I run headphones this good on portable or lesser equipment

I agree that they sound great out of the HPA-4, but they actually sound very good out of a Topping G5 too.
 
Nice! I don't really travel much now days, so I don't have a need, but good to know. The measurements for the Topping look great.

Now it's time to EQ my other headphones so they sound closer to the DCA Expanse... The Expanse is an incredible engineering feat. I measured all seven of my open back headphones using a MiniDSP Ears I bought (really only useful for comparing headphones and checking distortion after applying EQ settings).

The Expanse's bass distortion is the lowest, even though it's 5dB or higher than all my other open backs at 20-30Hz with no EQ... I have a lot of very nice headphones (Stax X9000, Stax SR-009, DCA Corina, LCD-5, HD800s to name a few), but the Expanse is forcing me to rethink my collection/money pit.

@Dan Clark
I wish the Corina had the bass the Expanse has, but I bet it will after a little EQ. I just need @oratory1990 to measure the Corina so I can get the EQ settings from here:

https://autoeq.app/

> No way would I run headphones this good on portable or lesser equipment

I agree that they sound great out of the HPA-4, but they actually sound very good out of a Topping G5 too.
 
Nice! I don't really travel much now days, so I don't have a need, but good to know. The measurements for the Topping look great.

Now it's time to EQ my other headphones so they sound closer to the DCA Expanse... The Expanse is an incredible engineering feat. I measured all seven of my open back headphones using a MiniDSP Ears I bought (really only useful for comparing headphones and checking distortion after applying EQ settings).

The Expanse's bass distortion is the lowest, even though it's 5dB or higher than all my other open backs at 20-30Hz with no EQ... I have a lot of very nice headphones (Stax X9000, Stax SR-009, DCA Corina, LCD-5, HD800s to name a few), but the Expanse is forcing me to rethink my collection/money pit.

@Dan Clark
I wish the Corina had the bass the Expanse has, but I bet it will after a little EQ. I just need @oratory1990 to measure the Corina so I can get the EQ settings from here:

https://autoeq.app/
I reckon the best usage for miniDSP EARS (I have one) is to use it for channel balancing all your headphones - so you can do a per channel EQ that brings both channels together perfectly from 20Hz-say 8000Hz. I would be a little bit careful though in assuming you'll get the same sound if you EQ all your headphones to the Expanse frequency response that you measure - this is particularly true for miniDSP EARS that doesn't have an acoustic impedance that accurately mimic real human ears - if you were to do the same process on GRAS which is more accurate to human anatomy then it's a bit more valid to EQ all your headphones to the Expanse frequency response and if you had a GRAS then you could expect them to sound quite similar, but using miniDSP EARS for the same process you're likely to hear bigger differences in sound between them once all EQ'd to Expanse. miniDSP EARS definitely excellent to be used for channel matching EQ though.
 
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