AKG K712 PRO vs Audio-Technica ATH-M40x

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K712 PRO compared with ATH-M40x

	AKGK712 PRO	Audio-TechnicaATH-M40x
Overview
Released
Released	June 2013	February 2014
Sound
Type
Type	Over-ear	Over-ear
Noise cancelling
Noise cancelling	No	No
Driver size
Driver size	–	40 mm
Back
Back	Open	Closed
Impedance
Impedance	62 ohms	35 ohms
Bluetooth codecs
Bluetooth codecs	None (wired)	None (wired)
Drivers
Drivers	Dynamic, with flat-wire voice coils; pre-selected transducers; low-end output raised by 3 dB; 10 – 39,800 Hz; 105 dB/V; maximum input power 200 mW	Dynamic, 40 mm with neodymium magnets and copper-clad aluminium wire voice coils; tuned flat; 15 – 24,000 Hz; sensitivity 98 dB; maximum input power 1,600 mW at 1 kHz
Battery
Listening time (maker's claim)
Listening time (maker's claim)	No battery (wired)	No battery (wired)
Design
Weight
Weight	235 g (better)	240 g
Headphone cable
Headphone cable	Yes	Yes
Fit and ear tips
Fit and ear tips	Circumaural, open-back; soft genuine-leather headband; replaceable ear pads	Circumaural, closed-back; earcups swivel 90 degrees; collapsible
Works with
Works with	Detachable 3 m single-sided OFC cable with a mini-XLR connector at the headphone end and a gold-plated 3.5 mm plug; gold-plated 3.5 to 6.3 mm adapter; additional 3 m coiled cable	Detachable 1.2 – 3.0 m coiled and 3.0 m straight cables with gold-plated 3.5 mm plugs; screw-on 6.3 mm adapter
Colours
Colours	Black and orange	Black
In the box
In the box	K712 PRO headphones, straight cable, coiled cable, 6.3 mm adapter, carrying bag	ATH-M40x headphones, two cables, screw-on 6.3 mm adapter, pouch