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beyerdynamic

beyerdynamic DT 900 PRO X

Name: beyerdynamic DT 900 PRO X
Brand: beyerdynamic
SKU: B09G777VG7
Price: 319.99 USD

The perfect headphones for bedroom producers and creative professionals.

Current price · Amazon US

$319.99

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Price last checked 1d ago

Key specs

Acoustic Design

Open-back

Closed-back57%Open-back35%Semi-open8%

Open-back appears on 35% of the 65 studio & professional headphones we've cataloged (of 68).

Impedance

48 ΩBelow average

48 Ω

18 Ω120 Ω

below average for studio & professional headphones — based on 51 of 68 we've cataloged.

Frequency Response

5-40000 Hz

Connection Type

Wired-3.5mmMost common

Wired-3.5mm91%Wired-6.35mm9%

Wired-3.5mm is the most common — on 91% of the 66 studio & professional headphones we've cataloged (of 68).

Sound

Acoustic Design: Open-back
Impedance: 48 Ω
Frequency Response: 5-40000 Hz
Driver Count: 1
Driver Size: 45 mm
Driver Type: Dynamic driver
Frequency Response High Hz: 40000 Hz
Frequency Response Low Hz: 5 Hz
Frequency Response Signature: Neutral
Max Spl: 125 dB SPL
Sensitivity: 100 dB/mW

Connectivity

Connection Type: Wired-3.5mm
Cable Type: Mini-XLR to 3.5mm jack, straight detachable, coiled detachable

Design

Weight: 345 g
Color Options: Black
Ear Pad Type: Velour
Detachable Cable: Yes
Foldable: No
Headband Type: Adjustable over-head

Build

Material Chassis Primary: Steel, plastic
Material Ear Cups: Velour

Identity

Model Number: DT 900 PRO X

Microphone

Microphone: No

Release

Date: 2021-09-24
Year: 2021

SoundGuys review

Read the full review ›

SOUNDGUYS rating

7.5/ 10

Recommended

Reviewed byChase BernathBrand & Partnerships ManagerReviewed June 2022

Comfort & fit9.3

Connectivity6.5

Design9.2

Portability5.1

Features7.0

Value8.5

The verdict

Content creators, music professionals, and audio enthusiasts can all get something out of the Beyerdynamic DT 900 PRO X. The German headphone manufacturer continues to set the standard for what great open-back headphones should be. Those who want something for a variety of applications may not find the DT 900 PRO X meets all of their needs, but so long as you know what to expect, you'll enjoy these headphones.

✓What we like

✓Sound quality

✓Plush fit

✓Replaceable parts

✓Low impedence

✕What could be better

✕A bit heavy

✕Not very portable

Read the full SoundGuys review →

Lab data

How we test ›

Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.

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0 of 4 overlay slots used

beyerdynamic DT 900 PRO XSoundGuys Headphone Preference Curve

Measured frequency response (dB) against the SoundGuys house target — the dashed curve. The closer the measured line tracks the target, the more neutral the tuning; peaks ride above the target, dips fall below it.

Frequency response — measurement data

beyerdynamic DT 900 PRO X: frequency response, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Response (dB)
20	-4.3
25	-1.1
32	0.4
40	0.9
50	1.0
63	0.7
80	0.5
100	0.8
125	0.7
160	0.3
200	0.2
250	0.1
315	0.1
400	-0.1
500	-0.4
630	0.0
800	0.0
1000	0.0
1250	0.2
1600	2.3
2000	5.4
2500	7.2
3150	7.0
4000	3.2
5000	10.1
6300	12.6
8000	11.7
10000	8.2
12500	4.2
16000	-7.9
20000	-11.8

beyerdynamic DT 900 PRO X

Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.

Passive isolation — measurement data

beyerdynamic DT 900 PRO X: passive isolation, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Attenuation (dB)
21	0.3
26	-0.1
33	-0.0
41	0.0
52	-0.1
65	-0.2
82	0.2
103	0.3
130	-0.1
163	-0.1
205	-0.3
259	-0.3
325	-0.2
410	-0.4
516	-0.4
613	-1.1
772	-1.2
972	-0.6
1220	1.7
1540	4.7
1940	1.5
2440	7.1
3070	10.4
3870	17.3
4870	21.0
6130	25.7
7720	30.5
9720	25.5
12200	18.8
15400	19.5
19400	20.1