AKG K121 StudioUltrasone HFI-15G
Top 58%543 points
Top 58%
Top 64%473 points
Top 64%
AKG K121 Studio
Ultrasone HFI-15G
vs
Top specs and features

AKG K121 Studio vs Ultrasone HFI-15G: 13 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.
22500Hz
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

135g lighter.
220g
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.
55Ohms
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.
114dB/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 K121 Studio
Ultrasone HFI-15G
73% have it

7. has a tangle free cable

The cable is designed to minimize tangling.
AKG K121 Studio
Ultrasone HFI-15G
25% have it

8. can be folded

Folding devices are good for transporting as they take up less space in your bag.
AKG K121 Studio
Ultrasone HFI-15G
31% have it

9. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.
AKG K121 Studio
Ultrasone HFI-15G
54% have it

10. has included ear pads

Allows you to change ear pads without buying new ones.
AKG K121 Studio
Ultrasone HFI-15G
42% have it

11. has an on-ear form

This device comfortably rests on top of your outer ears. As it doesn't block out everything from the outside world, it's preferred in places like office environments and recommended for outdoor activities.
AKG K121 Studio
Ultrasone HFI-15G
22% have it

12. cable length

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

13. 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 K121 Studio
Ultrasone HFI-15G
87% have it

Top 10 headphones

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