Koss UR 15C Specifications, Tests and Review

Headphone type
Full size
Connectivity
Wired
Frequency Response
25 - 15000 Hz
Sensitivity
92 dB
Impedance
32 Ohm

Get the key specs, technical data, ratings and full review of Koss UR 15C all in one place. Compare your selected model with other alternatives and give your decision on the best headphones a solid base with our comprehensive overview.

Koss UR 15C Full Specifications and Details

design and dimensions sound quality cable connections others

DESIGN AND DIMENSIONS Koss UR 15C
Product Type Headphones - wired - 3.5 mm jack
Weight 164 g Worse than 51 % of headphones rated.
Recommended Use Home audio

The Koss UR 15C 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.

This type of headphones has a design that surrounds the entire ear to improve isolation from external noise. As a result, they provide a great quality of listening without interference. However, unlike on-ear headphones, they are usually heavier and less suitable for frequent wearing. The weight of the headphones is 164 g.

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SOUND QUALITY Koss UR 15C
Headphones Form Factor Full size
Headphones Technology Dynamic
Connectivity Technology Wired
Sound Output Mode Stereo
Frequency Response 25 - 15000 Hz Worse than 90 % of headphones rated.
Total Harmonic Distortion (THD) 0.3% Better than 66 % of headphones rated.
Sensitivity 92 dB Worse than 92 % of headphones rated.
Impedance 32 Ohm

The sound quality can be affected by many factors. When it comes to frequency range, a wider range will allow more detail to be heard during your listening session. However, it is important to note that the ability to perceive frequencies varies from person to person. The average person is able to hear frequencies in the range of 16 to 20 000 Hz. That is why headphone manufacturers usually focus on the 20 to 20 000 Hz range. If the lower values are lower, headphones are better able to reproduce bass tones, as these represent frequencies up to approximately 256 Hz. Conversely, values from 2 048 Hz upwards are treble. Thus, headphones with a high upper limit will provide a much more accurate reproduction of high tones. Headphones Koss UR 15C have a frequency range of 25 - 15000 Hz. The Koss UR 15C reaches the sensitivity values of 92 dB. The sensitivity of the headphones expresses the ability of the headphones to pick up the signal from the source and reproduce it with sufficient volume. The higher the sensitivity, the more easily the signal is converted to sound and the louder the headphones are able to play at a lower power consumption. It is important to remember that high listening volume can consume more energy from connected devices. So if you want to listen to music from your cell phone, it's better to choose headphones with low sensitivity to avoid draining your phone's battery too much. Headphones with a lower sensitivity value (around 85 dB) are better suited for listening in quiet environments, while medium values (around 90 dB) allow for quality listening in noisy environments such as public transport or cafes. Headphones with a high sensitivity value (100 dB or more) are designed for use in really noisy environments such as concerts

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 Koss UR 15C
Cable Type Headphones cable - 2.4 m
CONNECTIONS Koss UR 15C
Connector Type Headphones (mini-phone stereo 3.5 mm)
OTHERS Koss UR 15C
Service & Support Limited warranty - lifetime

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