Sennheiser HD 477 Specifications, Tests and Review

Headphone type
Full size
Connectivity
Wired
Frequency Response
37 - 21000 Hz
Sensitivity
109 dB
Impedance
32 Ohm

A detailed list of technical data, specifications, ratings and expert review of Sennheiser HD 477. Get a comprehensive look at your chosen headphones and see if these are the ones that will best suit your needs. You can also use the comparison feature to compare with other competing headphones.

Sennheiser HD 477 Full Specifications and Details

design and dimensions sound quality cable connections others

DESIGN AND DIMENSIONS Sennheiser HD 477
Product Type Headphones - wired - 3.5 mm jack
Weight 130 g Better than 63 % of headphones rated.
Colour Black
Body Material Plastic
Recommended Use Home audio, portable electronics

The Sennheiser HD 477 are wired headphones. In the case of studio and professional DJ headphones, a wired connection is a standard and a necessity. In this case, connecting via cable reduces audio transmission delays and prevents unwanted battery drain as it would be in case of wireless headphones. The same is de facto true for gaming headsets. In case of headphones for normal music listening, the cable is rather a relic, although it still has its fans. However, the wireless option is much more popular for everyday use in today’s world.

These headphones are designed to fit around the ears. Thanks to the design, they can isolate better from external noise than, for example, over-ear headphones. This allows for better listening quality without interference. However, this design tends to make headphones heavier and less practical for frequent carrying The weight of the headphones is 130 g.

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SOUND QUALITY Sennheiser HD 477
Headphones Form Factor Full size
Headphones Technology Dynamic
Connectivity Technology Wired
Sound Output Mode Stereo
Frequency Response 37 - 21000 Hz Better than 69 % of headphones rated.
Total Harmonic Distortion (THD) 0.2% Better than 81 % of headphones rated.
Sensitivity 109 dB Better than 75 % of headphones rated.
Impedance 32 Ohm

The sound quality can be affected by many factors. For many users the frequency range is a key feature of headphones. The wider the range, the more detail and nuance you will hear while listening. However, every individual perceives frequencies differently, so the frequency range of headphones varies according to individual needs. The average person perceives frequencies in the range of 16 to 20,000 Hz, so headphones with a frequency range of 20 to 20,000 Hz are most commonly available. If you are looking for headphones with a good bass performance, you should aim for lower range values (bass represents frequencies up to about 256 Hz), while high range values (frequencies roughly above 2,048 Hz) will be better for reproducing high tones. The frequency range of headphones Sennheiser HD 477 is 37 - 21000 Hz. The headphone's sensitivity determines how effectively they can receive a signal from a source. The higher the sensitivity of the headphones, the louder they can play at lower power consumption. However, at high volumes, power consumption increases, which can be a problem when listening to music from a cell phone. A sensitivity value of around 85 dB is suitable for quiet environments, while a value of around 90 dB allows for quality listening even in noisy environments. Headphones with a sensitivity value of 100 dB and above are suitable for extremely noisy environments such as concerts. Headphones Sennheiser HD 477 are designed with sensitivity about 109 dB.

The device connected to the headphones also plays a role most times. The lower impedance value (approximately 100 to 150 Ohms) is suitable for playback from mobile phones, laptops or other portable players that do not have a powerful enough amplifier. The lower impedance will ensure that the required volume level is achieved with less power, thus extending the life of the player. However, at the same time, with lower impedance, there is more distortion of the sound. Headphones with a higher impedance of around 250 Ohms and above are then more suitable for playback from really powerful signal sources or using a headphone amplifier, otherwise the sound coming out of them might not be loud enough. At the same time, higher-impedance headphones will also ensure less distortion in the sound. In the case of these headphones, the impedance reaches the 32 Ohm value. Total Harmonic Distortion of these headphones is Audio Output | Total Harmonic Distortion. The value quoted by the manufacturer is usually the average distortion over all reproducible frequency bands. This is not a crucial parameter to decide on when making a decision, but on the other hand, keep in mind that higher harmonic distortion can negatively affect sound quality.

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CABLE Sennheiser HD 477
Cable Type Audio adaptor
Audio cable - 3 m
CONNECTIONS Sennheiser HD 477
Connector Type Headphones (mini-phone stereo 3.5 mm)
OTHERS Sennheiser HD 477
Service & Support Limited warranty - 2 years

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