Koss PRO3AA vs Koss PRO4AAT: 14 facts in comparison
1. highest frequency
The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.
Sony MDR-Z1R: 120000Hz
2. lowest frequency
The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
Sony MH1CBLK: 1Hz
3. has sound isolation/passive noise reduction
The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.
44% have it
Impedance is the device’s electrical resistance to the current being pushed through it. The lower the impedance, the easier it is to get higher volume and requires less power.
Flips Solo 2 Social: 4 Ohms
5. sound pressure level
Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
AKG K553 Pro: 144dB/mW
6. no battery needed
This device works without batteries. It weighs less and you don't have to worry about recharging or replacing the battery.
67% have it
7. has stereo speakers
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
76% have it
8. can be folded
Folding devices are good for transporting as they take up less space in your bag.
31% have it
9. has an over-the-ear form
Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.
39% have it
10. travel bag is included
The device comes with its own special case or pouch, which is useful for safe transportation.
64% have it
11. has a straight plug
A straight plug is better when the jack is on the top or bottom of your player.
49% have it
12. has a 3.5mm male connector
A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
80% have it
13. cable length
A long cable ensures more freedom of movement.
Pioneer SE-A1000: 6m
14. has a coiled cord
A coiled cord typically offers more flexibility as it can be extended, and taken outside for example.