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Adam Audio H200 (Gras 45CA Measurements + Earpad Dimensions)

Cammy

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Joined
Dec 24, 2023
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Here is the frequency response for the new Adam Audio H200 closed back over ear headphones for anyone curious.

These headphones have very shallow earcups so dumbo ears beware!

Earpad Dimensions

  • Height: 65.00mm
  • Width: 40.00mm
  • Depth: 25.80mm
Below is the frequency response measured on my industry standard GRAS 45CA test fixture.
Calibrated 94 dB SPL, five averages per side

Screenshot 2025-03-05 211944.png
 
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Thanks for sharing! That frequency response looks definitely serviceable.

At 160€, main competition will be the K371, DT770, and FT1

A tip: don't use black font color in your posts.
Text disappears for people using ASR's XF2 Default Dark theme.
 
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Thanks for sharing! That frequency response looks definitely serviceable.

At 160€, main competition will be the K371 and FT1

A tip: don't use black font color in your posts.
Text disappears for people using ASR's XF2 Default Dark theme.
Ah yes, I see. I updated it and removed colour formatting.
 
Thanks for sharing! That frequency response looks definitely serviceable.

At 160€, main competition will be the K371 and FT1

A tip: don't use black font color in your posts.
Text disappears for people using ASR's XF2 Default Dark theme.
I really like these, they feel built pretty well and the headband pad can be replaced alongside the earpads.
 
Nice, I wasn't aware they made headphones and this doesn't look bad!
On paper it's like a K371 with more bass, which has its appeal.

On the website they mention a DSP plugin with an externalization effect.
Were you able to check that out?
 
Nice, I wasn't aware they made headphones and this doesn't look bad!
On paper it's like a K371 with more bass, which has its appeal.

On the website they mention a DSP plugin with an externalization effect.
Were you able to check that out?
It's nothing special, the "Externalization" option makes them sound more coloured and closed in to me. I have attached a PluginDoctor view below.
 

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It's nothing special, the "Externalization" option makes them sound more coloured and closed in to me. I have attached a PluginDoctor view below.
Thanks for sharing! I was hoping for some fun room simulation plugin like DearVR (I think Sennheiser bundles it with HD 490), looks like this aint't it.
 
Looks good. A lot of bass (but not boomy, a rather nice bass around 50hz so it would sound very good to me probably) which could ba a nice thing when listening at lower volumes kinda like built in loudness correction.
I hope it's QC is better than something like akg k371 and also parts availability...
 
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Looks good. A lot of bass (but not boomy, a rather nice bass around 50hz so it would sound very good to me probably) which could ba a nice thing when listening at lower volumes kinda like built in loudness correction.
I hope it's QC is better than something like akg k371 and also parts availability...
Keep in mind the bass drops down to almost flat with a roll off with average thickness glasses, I'm not sure about hair but it's tolerance is poor. Keep this in mind if any is applicable
 
Keep in mind the bass drops down to almost flat with a roll off with average thickness glasses, I'm not sure about hair but it's tolerance is poor. Keep this in mind if any is applicable
Yes that's also something to keep in mind that on head response will be probably lower a tad even with very good seal.
Can you please measure and show seal tolerance?
 
Yes that's also something to keep in mind that on head response will be probably lower a tad even with very good seal.
Can you please measure and show seal tolerance?
Glasses leg, pad pushed firmly over it to try and maintain seal. Thickness is about 1.8mm
 

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Glasses leg, pad pushed over it to try and maintain seal. Thickness is about 0.18mm
Wow that's some serious leakage Intolerance, hence FR on head could be very different in that area versus what we see on measurement rig
 
Here is the frequency response for the new Adam Audio H200 closed back over ear headphones for anyone curious.

These headphones have very shallow earcups so dumbo ears beware!

Earpad Dimensions

  • Height: 65.00mm
  • Width: 40.00mm
  • Depth: 25.80mm
Below is the frequency response measured on my industry standard GRAS 45CA test fixture.
Calibrated 94 dB SPL, five averages per side

View attachment 433531
Hey Cammy, where can I find the measrument? Checked your Squig but didn't found it there.
 
looks pretty good on chart but do you recommend them to studio work or better looking for sth else like Beyers DT770 PRO and similar? Rn I'm looking for closed studio headphones in kind of $200ish budget and many youtubers and reviewers said good things about them but... not so much about their real sound. They can have great freq response but it's not everything as we know it. Any tips and recommendations are really appreciated. Thank you.
 
looks pretty good on chart but do you recommend them to studio work or better looking for sth else like Beyers DT770 PRO and similar? Rn I'm looking for closed studio headphones in kind of $200ish budget and many youtubers and reviewers said good things about them but... not so much about their real sound. They can have great freq response but it's not everything as we know it. Any tips and recommendations are really appreciated. Thank you.
I have owned the Dt 880 Pro , 1990 Pro and 1770 Pro of which i have only kept the 1770 which i am currently also selling.
I tried for years to live with them but cannot become friends with the hyped high mids+highs as i find them very fatiguing.
So for now i am taking a nice long break from Beyerdynamic and decided to try some other stuff.
I just bought the H200 out of curiosity. I like them much much more „out of the box“. However they are not perfect.
1) I find they have too much bass for my taste. Not boomy but but definitely sounds like the person that fine tuned them was a bass fetishist in a way. I love bass
as much as anybody else. I just don`t like it being the main character of the movie.
2) The resolution in the mids and upper mids is not 100% on par with the 1770
3) They feel much cheaper than the beyer`s , which is understandable but they also sit much too tight. I tried to spread them like i did with the Beyerdynamics
but unlike the Beyerdynamic they keep defaulting to the tight side. Also when i wear them i get a "suction“ kind of
discomfort as if the ears are sealed 120% and not only 100% if you get my picture. Like i put a suction cup over my ears. I ordered the „Velvet-y“ Ear pads so i hope this becomes better.
4) They transmit insane levels of mechanical noise in a very uncomfortable way. If you knock on them gently, anywhere, you get ear deafening
mechanical noise transmission as if you would be wearing a tea cup over your ear and knock on it

All in all great earphones but i with the original ear pads i cannot imagine being able to wear them for extended periods of time.
Today the Velvet ones arrive and then i will update my summary

Also since i bought a Qudelix 5K recently i will experiment a bit with them. Unfortunately there is not AutoEq profile for the Adams only for the bigger model SP-5.
I can only recommend investing in a Qudelix. It is amazingly flexible and can drive the Adams to ear bleeding levels easily.
After decades with earphones i have come to the conclusion that Dsp Equalisation is the way to go, at least in my personal opinion.
I need a Set and forget solution and this came in the form of the Qudelix.

I guess you cant have it all but again, these are as luxury problems as they get
 
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