beyerdynamic

beyerdynamic DT 900 PRO X Open-Back Studio Headphones — 48Ω, Mini-XLR Cables

Genuine & Brand-New
Free Shipping · Ships from China
1-Year Warranty
45-Day Returns

$274.99 USD

Shipping calculated at checkout.

The beyerdynamic DT 900 PRO X is an open-back over-ear studio headphone for critical listening, mixing and mastering, built around the 48Ω STELLAR.45 driver with a 5Hz–40kHz response and detachable mini-XLR cables. It suits mix engineers, producers and composers who want an open-back reference that runs from interfaces, laptops and phones.

Who the beyerdynamic DT 900 PRO X is for

Mixing and mastering: beyerdynamic designs it for critical listening, mixing and mastering and describes the sound as detailed, spacious and transparent.
Any playback device: At 48Ω and 100 dB SPL (1mW/500Hz), the STELLAR.45 driver is made to reach studio levels from an audio interface, laptop, tablet or phone.
Long sessions: Velour ear pads, a memory-foam headband pad and a spring-steel headband carry the 345g frame, and the pads and headband pad are replaceable.
Daily studio use: The single-sided 3-pin mini-XLR cable detaches, 1.8m and 3m cables are both included, and beyerdynamic says it is handmade in Germany.
Skip it if: you need isolation for tracking next to a live mic or for commuting: this open-back model is meant for mixing and mastering, while beyerdynamic's closed DT 700 PRO X is aimed at recording.

beyerdynamic DT 900 PRO X key specs

Type: Open-back dynamic, over-ear (circumaural)
Driver: STELLAR.45 dynamic
Impedance: 48Ω
Sensitivity: 100 dB SPL (1mW/500Hz); 114 dB SPL (1V/500Hz)
Frequency response: 5Hz–40kHz
Max input power: 100mW short-term; 30mW continuous
Weight: 345g (without cable)
Cable: Detachable, single-sided 3-pin mini-XLR; 1.8m and 3m straight cables
Plug: Gold-plated 3.5mm with 6.35mm (1/4") adapter
In the box: Headphones, 1.8m and 3m cables, 6.35mm adapter, drawstring bag

Genuine beyerdynamic stock. Free shipping on every order, 45-day returns.

beyerdynamic DT 900 PRO X vs similar options

vs Sennheiser HD 550: Uses an angled dynamic driver at 150 Ohm in a lighter 237g build; pick the DT 900 PRO X for a 48Ω STELLAR.45 driver made to reach studio levels from phones and laptops, plus mini-XLR cables.
vs HIFIMAN Sundara: Swaps in a planar magnetic driver (37 Ω, 6 Hz – 75 kHz) and dual 3.5 mm sockets; pick the DT 900 PRO X for a lighter 345g dynamic design with a single-sided mini-XLR cable.

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Specifications

Driver	STELLAR.45 dynamic, open-back
Impedance	48Ω
Sensitivity	100 dB SPL (1mW/500Hz); 114 dB SPL (1V/500Hz)
Frequency response	5Hz–40kHz
Connector	Detachable single-sided 3-pin mini-XLR cables with gold-plated 3.5mm plug; 6.35mm adapter
Weight	345g (without cable)

What's in the box

DT 900 PRO X headphones
Straight cable, 3m (9.8ft), mini-XLR to 3.5mm
Straight cable, 1.8m (5.9ft), mini-XLR to 3.5mm
6.35mm (1/4") adapter
Drawstring bag

Good to know

Buying from TonePier

Is this unit genuine?

Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.

Where does my order ship from, and how long does it take?

Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.

What if it isn't for me?

You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.

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