Koss SP 540 Specifications, Tests and Review

Headphone type
Full size
Connectivity
Wired
Frequency Response
10 - 25000 Hz
Sensitivity
99 dB
Impedance
35 Ohm

Complete technical specifications, details, expert ratings and review of Koss SP 540. Find out how your chosen headphones stack up against the competition and whether they are the ones that best meet your expectations with the headphone comparison feature.

Koss SP 540 Full Specifications and Details

design and dimensions sound quality cable connections others

DESIGN AND DIMENSIONS Koss SP 540
Product Type Headphones - wired - 3.5 mm jack
Recommended Use Portable electronics

The Koss SP 540 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.

The design of the headphones is around the ears. Because of this design, the headphone envelops the entire ear and isolates the ear better from surrounding noise when listening compared to for example on-ear headphones. With that, they offer high-quality listening without interference. However, they are most likely heavier by design and less practical for frequent carrying. Although these are over-the-head headphones that are normally characterized by their bulky nature, this model can be folded into a more compact form. This makes them easier to fit into a backpack or bag

Show more
SOUND QUALITY Koss SP 540
Headphones Form Factor Full size
Headphones Technology Dynamic
Foldable Yes Better than 84 % of headphones rated.
Connectivity Technology Wired
Sound Output Mode Stereo
Frequency Response 10 - 25000 Hz Better than 89 % of headphones rated.
Sensitivity 99 dB Worse than 76 % of headphones rated.
Impedance 35 Ohm

The sound quality can be affected by many factors. When it comes to frequency range, the wider it is, the more detail you will hear when listening. However, the range a person can perceive is highly individual. The average person is able to perceive frequencies in the range of 16 to 20 000 Hz. So the most common frequency range you will see on the market is 20 to 20,000 Hz. Lower frequencies up to approximately 256 Hz are considered bass frequencies. Therefore, the lower the bottom value is, the better the headphones will reproduce bass. Conversely, values from approximately 2 048 Hz upwards are treble. That is why headphones with a high upper value will provide a much more accurate reproduction of high notes. Koss SP 540 offers a frequency range of 10 - 25000 Hz. The sensitivity parameter determines how sensitively the headphones can receive the signal from the source. The higher the sensitivity value, the louder the headphones will be able to play with less power consumption. In general, a higher listening volume also means a higher power load for the connected device. So if you're buying headphones to listen to music from your mobile phone, for example, this is relevant to think about as you don't want to drain your phone's battery too much. Lower values around 85 dB are more suitable for listening in more quiet environments (for example, at home or in the office). Medium values of around 90 dB can provide good listening quality in noisier environments (for example, on public transport or in cafés). Headphones with high sensitivity values of around 100 dB or more are designed for really noisy environments, such as concerts. The Koss SP 540 has 99 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 35 Ohm value.

Show more
CABLE Koss SP 540
Cable Type Headphones cable - 1.4 m
Detachable Cable Yes
CONNECTIONS Koss SP 540
Connector Type Headphones (mini-phone stereo 3.5 mm)
OTHERS Koss SP 540
Included Accessories Carrying case
Service & Support Limited warranty - lifetime

Similar Headphones

Other Koss Headphones

Other projects: