Sony MDR-7506 vs Sony MDR-CD3000

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MDR-7506 compared with MDR-CD3000

	SonyMDR-7506	SonyMDR-CD3000
Overview
Released
Released	1991	1991
Sound
Type
Type	Over-ear	Over-ear
Noise cancelling
Noise cancelling	No	No
Driver size
Driver size	40 mm	50 mm
Back
Back	Closed	Closed
Impedance
Impedance	63 ohms	32 ohms
Bluetooth codecs
Bluetooth codecs	None (wired)	None (wired)
Drivers
Drivers	Dynamic, 40 mm dome-type; 10 – 20,000 Hz; 106 dB/mW; maximum input 1,000 mW (IEC)	Dynamic dome drivers with bio-cellulose diaphragms and neodymium magnets; 20 Hz – 20 kHz stated response; 104 dB/mW sensitivity; 1,000 mW power handling
Battery
Listening time (maker's claim)
Listening time (maker's claim)	No battery (wired)	No battery (wired)
Design
Weight
Weight	230 g (better)	400 g
Headphone cable
Headphone cable	Yes	Yes
Fit and ear tips
Fit and ear tips	Circumaural, closed-back; folds; click-scale headband sliders	Circumaural closed cups with angled Aura-Nomic drivers, self-adjusting headband and collagen-composite floating-support ear pads, described in Sony's 2002 catalogue
Dimensions
Dimensions	–	Approximately 400 g without the cord, as specified in Sony's service manual
Works with
Works with	Fixed coiled cable, about 1.2 m (about 3 m extended), with a gold-plated two-way stereo plug (3.5 mm and 6.3 mm)	Fixed approximately 3 m 6N oxygen-free copper litz cable with gold-plated stereo two-way plug
Colours
Colours	Black	–
In the box
In the box	MDR-7506 headphones, carrying pouch	Headphones, hard carrying case and UniMatch plug adaptor