Sony

Sennheiser

MDR-ZX750AP-R

HD-451

Wired Headphone Specification

Wired Headphone Specification

On Ear

Over Ear

Neodymium

Neodymium

40 mm

NA

40 Ohms

32 Ohms

104 dB/mW

108 dB/mW

5 Hz - 25,000 Hz

20 Hz-20,000 Hz

1000 mW

100 mW

NA

Yes

Black, White

Black, Blue, Grey

3.5 mm Gold Plated Plug

3.5 mm Gold Plated Plug

1.2 m

1.2 m

205 g

380 g

- Beat Response Control for enjoyment of tight and deep bass
- 40mm dynamic driver unit for high quality sound
- High energy neodymium magnets deliver powerful sound
- In-line remote and microphone for hands-free phone calls
- Slim, swivel folding style for easy portability
- Pressure relieving earpads for extended comfort

Microphone Features
- Unit/Type : Electret Condenser
- Frequency Range : 20 Hz – 20,000 Hz
- Open circuit voltage level : – 40 dB (0 dB = 1 V/Pa)

- Vibrant stereo sound with powerful bass response
- Closed around-ear design, delivers stereo sound with powerful punchy bass
- 2-year warranty
- Eye catchy design