Beyerdynamic DT 270 PRO

[solderdude]

Interesting linearity from 200hz to 10khz for the the H200.
Did you feel the bass was too much below 100 hz ?

A little bit on some recordings but not in an annoying way.
Very impressive when watching movies.

I lightly modified my H200 as the upper treble is audibly rolled-off in stock form.
The bass also shifted a bit lower and got 1dB lower in level, treble now extends to 15kHz.

For a closed headphone in this price class the tonal balance is really nice.

 

[Alchemist_]

The ADAM Audio H200 is a good alternative for the DT 270 PRO.
It is similar priced but has oval memory foam pads and comes with a plug-in for a DAW.

H200

back to ADAM Audioback to measurementshome published: Nov-15-2025 NO SMOOTHING is applied to the shown plots. Most measurement sites have some smoothing applied which ‘irons flat’ sharp peaks and ‘…

diyaudioheaven.wordpress.com

Below a comparison between the DT 270 PRO and H200

View attachment 490549

Which one has better sound insulation?

 

[solderdude]

The H200 marginally.
Both headphones have internal ported +sealed enclosures in their also ported cups.

 

[solderdude]

the t.bone HD 815 review is posted.

HD 815

back to t.boneback to measurementshome published: Nov-14-2025 NO SMOOTHING is applied to the shown plots. Most measurement sites have some smoothing applied which ‘irons flat’ sharp peaks and ‘wigg…

diyaudioheaven.wordpress.com

Very easy to improve the sound quality of this cheap (€ 32.-) Thomann exclusive headphone.

This seems to be the same headphone as the Soncie Meory G50 tested by @Jeromeof

Soncie Meory G50 - Reviews

www.head-fi.org

 

[FTB]

Hi,

I tried the Adam H200 and they are interesting headphones.
First the build quality is very good to me and the cable is flexible and non microphonic.
The clamping force is high but at least they stay on the head.

In the audio part they didn't put aside on the road the K371 once more.

First, the extra sub-bass (under 100 Hz) is not annoying and like Solderdude wrote, it doesn't bleed into the mids.
They have no big dip in the mids like the AKG but, on a track like "Tell me something I don't know" from Celeste, I felt the electric guitar is too prominent and fatiguing.

I think it is very subtle but, if we look at the FR graph of Solderdude, I think it comes from the bit elevated ~2,8 kHz. There are 2-3 dB more and we know +3 dB is doubling the volume.

In direct comparison the K371 was more dark and it was welcome (still about this fatiguing electric guitar).

To me they have close sound signature and they are both great headphones, depending of the individual variations around 3 kHz.

 

[Robz]

@solderdude Hi man, honestly thx for your work, you're a legend, I have a question if you can answer, do the dt 270 pro have more low end than dt 770 pro, on this measurment graph https://gadgetrytech.squig.link/hea...dynamic_DT_270_Pro,beyerdynamic_DT_770_80_ohm , it seems like they don't, I am trying to make a decision between these 2 as I am looking for a closed back under 200, and I don't really like too much boosted bass that bleds into low mids, prefer more neutral, and some decent sound isolation, thx.

 

[solderdude]

I have never measured the 80 ohm version.
DT270 pro bass levels are too much but no piercing treble.

With modifications or EQ the DT270pro sounds very good.
Pad diameter is a bit on the small side for people with larger ears.

 

[Alchemist_]

I think my Shure 440A are better. The oval earcups are comfortable, they don't touch anything, the sound is good, they're lightweight, and don't pinch.
Especially if you need to adjust the 270 with an equalizer.

The manufacturer probably wanted pocket/portable headphones, so they saved on the earcup size. Initially, I was only interested in them because the driver is in a separate capsule.

 

[LevityProject]

This headphone is likely a mess tonally. You can tell looking at the response curve.

This is a neutral headphone response curve.

And the beyers (I should stretch this so they are the same but I'm on my phone)

The beyerdynamic DT270 has a downward tilt from 100hz to 20khz, except for when it matches bass at like 14khz. No. This is all wrong.

I had a pair of DT990s for years and I enjoyed them because I got used to how they sounded. I liked them way more when I tuned them with corrective EQ.. But After moving to Sennheiser HD650s, I'd take the 650s unturned over the tuned Beyerdyanmics every time. Transitents are better, imaging is solid, and the mid range on the HD650 is very accurate.

These 270s I bet sound boomy and shimmery. Look at the roll of the preference curve. The beyers do the exact opposite even in a broad sense.

 

[solderdude]

This headphone is likely a mess tonally. You can tell looking at the response curve.

That preference curve you posted is only valid for GRAS 43AG fixture with Harman 2018 Over-ear target applied.
In my plot the reference is a horizontal line and is not to Harman target but my own target and not measured on GRAS fixture.

Thus you are comparing apples to cabbages (not even oranges) which makes you draw incorrect conclusions.
Always best to only compare plots made on the exact same fixture.

FYI below comparisons between DT 270 PRO and DT 990/250, HD 650 and HD 560S

The DT 270 PRO is actually quite comparable to the ADAM Audio H200