Cyber Acoustics AC 634 Specifications, Tests and Review

Headphone type
Behind-the-neck mount
Connectivity
Wired
Frequency Response
20 - 20000 Hz
Impedance
32 Ohm
Microphone
Boom

A detailed list of technical data, specifications, ratings and expert review of Cyber Acoustics AC 634. 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.

Cyber Acoustics AC 634 Full Specifications and Details

design and dimensions sound quality microphone remote control cable connections others

DESIGN AND DIMENSIONS Cyber Acoustics AC 634
Product Type Headset - wired
Recommended Use Computer

The Cyber Acoustics AC 634 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.

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SOUND QUALITY Cyber Acoustics AC 634
Headphones Form Factor Behind-the-neck mount
Headphones Technology Dynamic
Connectivity Technology Wired
Sound Output Mode Stereo
Frequency Response 20 - 20000 Hz Better than 64 % of headphones rated.
Impedance 32 Ohm
Diaphragm 27 mm Worse than 96 % of headphones rated.
In-Cord Volume Control Yes

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 Cyber Acoustics AC 634 is 20 - 20000 Hz. To control the optimum playback volume you can use the manual control directly on the cable.

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.

Headphones consist of many important parts, including the diaphragm, which is responsible for converting electrical signals into sound. The diaphragm, with a thickness of around 6 mm, is very sensitive to changes in high frequencies but less sensitive to bass. For a relatively balanced sound profile, a medium-thick diaphragm of around 10 mm is used, which can reproduce both bass and treble. A diaphragm with a thickness of around 20 mm is not as quick to respond to changes in the audio signal, and this results in poorer bass listening. However, it is very sensitive to higher frequencies. In the case of this model, the diaphragm is the 27 mm.

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MICROPHONE Cyber Acoustics AC 634
Type Boom
Frequency Response 100 - 16000 Hz Better than 79 % of headphones rated.
Audio Input Details - 100 - 16000 Hz - Output Impedance 2.2 kOhm
Sensitivity -47 dBV/Pascal

Cyber Acoustics AC 634 has a boom–type microphone. The microphone sensitivity is -47 dBV/Pascal. A lower microphone sensitivity will generally ensure that even quieter sounds are caught. On the other hand, in noisier environments, distortion of the recording may occur. With a higher sensitivity, the microphone will not distort the recording even in noisy environments. On the other hand, the microphone will not pick up quieter sounds. So it depends on the environment and the purposes you plan to use the headphones for.

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REMOTE CONTROL Cyber Acoustics AC 634
Controls Mute, on/off
CABLE Cyber Acoustics AC 634
Cable Type Headset cable - 2.1 m
Plated Connector Gold
CONNECTIONS Cyber Acoustics AC 634
Connector Type Headphones (mini-phone stereo 3.5 mm)
Microphone (mini-phone 3.5mm)
OTHERS Cyber Acoustics AC 634
Service & Support Limited warranty - 1 year

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