beyerdynamic DT 1770 PRO MKII vs Sennheiser HD 490 PRO

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DT 1770 PRO MKII compared with HD 490 PRO

	beyerdynamicDT 1770 PRO MKII	SennheiserHD 490 PRO
Overview
Released
Released	October 2024	January 2024
Sound
Type
Type	Over-ear	Over-ear
Noise cancelling
Noise cancelling	No	No
Driver size
Driver size	45 mm	38 mm
Back
Back	Closed	Open
Impedance
Impedance	30 ohms	130 ohms
Bluetooth codecs
Bluetooth codecs	None (wired)	None (wired)
Drivers
Drivers	TESLA.45 dynamic drivers, made in Heilbronn, closed; 5 – 40,000 Hz; 95 dB SPL (1 mW, 500 Hz), 110 dB SPL (1 V, 500 Hz); THD at 1 mW 0.20% at 100 Hz, 0.04% at 500 Hz, 0.1% at 1 kHz; power handling 100 mW short-term, 30 mW continuous	38 mm dynamic transducer with neodymium magnet, low-frequency cylinder and Open-frame Architecture; 5 – 36,100 Hz (–10 dB); 105 dB SPL (1 kHz, 1 Vrms), 96 dB SPL (1 kHz, 1 mW); max. SPL 128 dB (1 kHz, 5% THD); THD < 0.2% (1 kHz, 100 dB SPL)
Noise cancelling detail
Noise cancelling detail	No active noise cancelling; passive attenuation 25 dBA	–
Battery
Listening time (maker's claim)
Listening time (maker's claim)	No battery (wired)	No battery (wired)
Design
Weight
Weight	377 g	260 g (better)
Headphone cable
Headphone cable	Yes	Yes
Fit and ear tips
Fit and ear tips	Circumaural, closed-back; spring steel headband with memory foam pad and fontanelle recess; nominal headband pressure 6 ± 0.5 N; replaceable headband pad and ear pads (velour with slight bass boost, leatherette for linear sound)	Over-ear (circumaural), open-back; producing and mixing ear pads, washable and replaceable; soft zone in the pads for glasses; braille L/R markings
Works with
Works with	3 m straight and 5 m coiled PRO X cables, detachable, with a lockable 3-pin mini-XLR connector on one side; gold-plated 3.5 mm stereo jack with 6.35 mm adapter	Detachable 1.8 m cable that plugs into the left or right ear cup, 3.5 mm and 6.3 mm connectors; optional balanced cable
Colours
Colours	Black	–
In the box
In the box	Headphones, velour ear pads, leatherette ear pads (each with acoustic disc), 3 m straight cable, 5 m coiled cable, hard case	HD 490 PRO headphones, producing and mixing ear pads, 1.8 m cable, dearVR MIX-SE licence (the HD 490 PRO Plus adds a 3 m cable, transport case and fabric headband pad)