AKG K77 PerceptionUltrasone HFI-450
Top 56%579 points
Top 56%
Top 61%508 points
Top 61%
AKG K77 Perception
Ultrasone HFI-450
vs
Top specs and features

AKG K77 Perception vs Ultrasone HFI-450: 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.
20000Hz
Sony MDR-Z1R: 120000Hz
20000Hz

2. lowest frequency

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
18Hz
Sony MH1CBLK: 1Hz
20Hz

3. weight

105g lighter.
190g
Sony MDR-EX150AP: 3g
85g

4. impedance

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.
32Ohms
Flips Solo 2 Social: 4Ohms
32Ohms

5. sound pressure level

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
112dB/mW
AKG K553 Pro: 144dB/mW
96dB/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.
AKG K77 Perception
Ultrasone HFI-450
73% have it

7. has a tangle free cable

The cable is designed to minimize tangling.
AKG K77 Perception
Ultrasone HFI-450
25% have it

8. can be folded

Folding devices are good for transporting as they take up less space in your bag.
AKG K77 Perception
Ultrasone HFI-450
31% have it

9. driver unit size

The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.
40mm
Audeze EL-8 Titanium: 100mm
40mm

10. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.
AKG K77 Perception
Ultrasone HFI-450
54% have it

11. has included ear pads

Allows you to change ear pads without buying new ones.
AKG K77 Perception
Ultrasone HFI-450
42% have it

12. 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.
AKG K77 Perception
Ultrasone HFI-450
42% have it

13. cable length

A long cable ensures more freedom of movement.
3m
Pioneer SE-A1000: 6m
1m

14. has a 3.5mm male connector

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
AKG K77 Perception
Ultrasone HFI-450
87% have it

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