Polk Audio UltraFocus 8000
Top 30%453 points
Top 30%
Lowest frequency
Number of headphones
lowmidhigh
Top 100%
216 headphones
1Hz - 9.25Hz
NaN% of all headphonesYes
No
lowest frequency
highest frequency
impedance
sound pressure level

Polk Audio UltraFocus 8000: 21 facts and highlights

1. highest frequency

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.
28000Hz
Sony MDR-Z1R: 120000Hz
152
0

2. lowest frequency

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
8Hz
Sony MH1CBLK: 1Hz
141
0

3. 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
97
0

4. 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.
Polk Audio UltraFocus 8000
48% have it
95
0

5. sound pressure level

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
110dB/mW
Audeze EL-8 Titanium: 130dB/mW
78
0

6. has a detachable cable

With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.
Polk Audio UltraFocus 8000
37% have it
63
0

7. has an in-line control panel

There is a control panel on the cable, so you can easily operate the device without having to interact with it.
Polk Audio UltraFocus 8000
44% have it
61
0

8. can be folded

Folding devices are good for transporting as they take up less space in your bag.
Polk Audio UltraFocus 8000
30% have it
60
0

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
51
0

10. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.
Polk Audio UltraFocus 8000
54% have it
49
0

11. is used as a headset

A headset is one headphone or pair with a built-in microphone. Headsets can be used for applications which require communication i.e. Skype, games with voice chat, mobile phones etc.
Polk Audio UltraFocus 8000
33% have it
49
0

12. has stereo speakers

Devices with stereo speakers deliver sound that surrounds the user from left and right side, creating a richer sound and a better experience.
Polk Audio UltraFocus 8000
73% have it
47
0

13. 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.
Polk Audio UltraFocus 8000
42% have it
46
0

14. control panel placed on a device

There is a control panel on the device body, so you can easily access the volume control or remote without having to interact with a cable or another device it's connected to.
Polk Audio UltraFocus 8000
12% have it
45
0

15. travel bag is included

The device comes with its own special case or pouch, which is useful for safe transportation.
Polk Audio UltraFocus 8000
65% have it
44
0

16. has active noise canceling / noise reduction

This type of device allows you to listen at lower volume levels, causing less ear fatigue as you don't have to crank up the volume to overcome background noise. Ideal for plane rides and morning commutes.
Polk Audio UltraFocus 8000
13% have it
43
0

17. number of microphones

More microphones result in better sound quality and enable the device to filter out background noise.
1
Parrot Zik Sport: 8
36
0

18. cable length

A long cable ensures more freedom of movement.
1.40m
Pioneer SE-A1000: 6m
35
0

19. has a removable battery

The battery is removable and can be replaced by the user if broken.
Polk Audio UltraFocus 8000
7% have it
32
0

20. diaphragm size

The diaphragm moves air back and forth to create sound. The bigger the diaphragm, the more bass it can produce.
40mm
Oppo PM-1: 85mm
29
0

21. has a 3.5mm male connector

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
Polk Audio UltraFocus 8000
87% have it
28
0

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