AKG K712 PRO vs Sony MDR-1A

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K712 PRO compared with MDR-1A

	AKGK712 PRO	SonyMDR-1A
Overview
Released
Released	June 2013	October 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	24 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 dome-type drivers with aluminium-coated liquid-crystal-polymer diaphragms and neodymium magnets; 3 Hz – 100 kHz stated response; 105 dB/mW sensitivity; 1,500 mW maximum input
Battery
Listening time (maker's claim)
Listening time (maker's claim)	No battery (wired)	No battery (wired)
Design
Weight
Weight	235 g	225 g (better)
Headphone cable
Headphone cable	Yes	Yes
Controls
Controls	–	Inline microphone and remote on one supplied cable; omnidirectional electret-condenser microphone
Fit and ear tips
Fit and ear tips	Circumaural, open-back; soft genuine-leather headband; replaceable ear pads	Sony's Japanese specification and original launch table state 24 ohms at 1 kHz; Sony UK's support specification instead lists 48 ohms, so this entry follows the documented Japanese model
Dimensions
Dimensions	–	Approximately 225 g without the cable
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 m silver-coated OFC cables with gold-plated stereo mini plugs; optional balanced cable and compatible amplifier required for balanced connection
Colours
Colours	Black and orange	–
In the box
In the box	K712 PRO headphones, straight cable, coiled cable, 6.3 mm adapter, carrying bag	Headphones, 1.2 m headphone cable, 1.2 m microphone/remote cable, carrying pouch, warranty and instructions