AKG K872 vs beyerdynamic DT 1770 PRO

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K872 compared with DT 1770 PRO

	AKGK872	beyerdynamicDT 1770 PRO
Overview
Released
Released	September 2016	September 2015
Sound
Type
Type	Over-ear	Over-ear
Noise cancelling
Noise cancelling	No	No
Driver size
Driver size	53 mm	45 mm
Back
Back	Closed	Closed
Impedance
Impedance	36 ohms	250 ohms
Bluetooth codecs
Bluetooth codecs	None (wired)	None (wired)
Drivers
Drivers	Dynamic, 53 mm with 1.5 tesla magnet systems and two-layer copper-covered aluminium voice coils; 5 – 54,000 Hz; 112 dB SPL/V; maximum input power 300 mW	45 mm Tesla dynamic drivers, closed; 5 – 40,000 Hz; 102 dB SPL (1 mW, 500 Hz); max. 125 dB SPL (200 mW, 500 Hz); THD < 0.05% (1 mW, 500 Hz); rated power handling 200 mW
Noise cancelling detail
Noise cancelling detail	–	No active noise cancelling; passive attenuation approx. 18 dBA with velour ear pads, approx. 21 dBA with leatherette
Battery
Listening time (maker's claim)
Listening time (maker's claim)	No battery (wired)	No battery (wired)
Design
Weight
Weight	390 g	388 g (better)
Headphone cable
Headphone cable	Yes	Yes
Fit and ear tips
Fit and ear tips	Over-ear, closed-back; open-mesh self-adjusting headband with a quick-lock mechanism; 3D-shaped slow-retention foam ear pads, replaceable; metal cardan hinges; doesn't fold	Circumaural, closed-back; nominal headband pressure approx. 7.2 N; spring steel headband; replaceable headband padding and ear pads, velour and black leatherette sets supplied
Works with
Works with	Detachable 3 m cable with a gold-plated 3.5 mm plug and a screw-on 6.3 mm adapter	3 m straight cable and 5 m coiled cable (extended), detachable, with a 3-pin mini-XLR connector on one side; gold-plated 3.5 mm stereo jack with 6.35 mm adapter (the manual; beyerdynamic's product page lists a 6.35 mm jack plug)
Colours
Colours	Black	–
In the box
In the box	K872 headphones, detachable 3 m cable, carrying case and stand	Headphones, velour ear pads, black leatherette ear pads, 3 m straight cable, 5 m coiled cable, hard case