68points

AKG K845BT

74points

Polk Audio UltraFocus 8000

AKG K845BT
Comparison winner
Polk Audio UltraFocus 8000
vs
vs

22 facts in comparison

AKG K845BT vs Polk Audio UltraFocus 8000

AKG K845BT
Polk Audio UltraFocus 8000
AKG K845BT
Polk Audio UltraFocus 8000

Why is AKG K845BT better than Polk Audio UltraFocus 8000?

  • Can be used wirelessly
  • Has a battery level indicator

Why is Polk Audio UltraFocus 8000 better than AKG K845BT?

  • 8000Hz higher high-frequency
    28000Hzvs20000Hz
  • 12Hz lower low-frequency
    8Hzvs20Hz
  • 8dB/mW higher sound pressure level
    110dB/mWvs102dB/mW
  • Has stereo speakers
  • Has active noise cancelling (noise reduction)
  • Can be used as a headset
  • Has an in-line control panel
  • Has a straight plug

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Top specs and features

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Design

1.has stereo speakers
AKG K845BT
Polk Audio UltraFocus 8000

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.

2.has an over-the-ear form
AKG K845BT
Polk Audio UltraFocus 8000

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.

3.has a detachable cable
AKG K845BT
Polk Audio UltraFocus 8000

With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.

4.can be folded
AKG K845BT
Polk Audio UltraFocus 8000

Folding devices are good for transporting as they take up less space in your bag.

5.travel bag is included
AKG K845BT
Polk Audio UltraFocus 8000

The device comes with its own special case or pouch, which is useful for safe transportation.

6.has a straight plug
AKG K845BT
Polk Audio UltraFocus 8000

A straight plug is better when the jack is on the top or bottom of your player.

relevant

Sound quality

1.lowest frequency

20Hz

8Hz

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.

Best

Sony MH1CBLK

1Hz

2.highest frequency

20000Hz

28000Hz

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.

Best

Sony MDR-Z1R

120000Hz

3.has sound isolation/passive noise reduction
AKG K845BT
Polk Audio UltraFocus 8000

The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.

4.sound pressure level

102dB/mW

110dB/mW

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.

Best

AKG K553 Pro

144dB/mW

5.driver unit size

50mm

40mm

The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.

Best

Audeze LCD2 Classic

106mm

6.impedance

32 Ohms

32 Ohms

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.

Best

Flips Solo 2 Social

4 Ohms

relevant

Power

1.has a battery level indicator
AKG K845BT
Polk Audio UltraFocus 8000

An indicator shows you when the device has low battery.

2.has a removable battery
AKG K845BT
Polk Audio UltraFocus 8000

The battery is removable and can be replaced by the user if broken.

relevant

Connectivity

1.Can be used wirelessly
AKG K845BT
Polk Audio UltraFocus 8000

Wireless devices allow users more freedom of movement.

2.has a 3.5mm male connector
AKG K845BT
Polk Audio UltraFocus 8000

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.

3.Has WiFi
AKG K845BT
Polk Audio UltraFocus 8000

The device can connect to WiFi.

For example

Meters OV-1 Bluetooth

relevant

Features

1.control panel placed on a device
AKG K845BT
Polk Audio UltraFocus 8000

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.

2.has an in-line control panel
AKG K845BT
Polk Audio UltraFocus 8000

There is a control panel on the cable, so you can easily operate the device without having to interact with it.

3.can be used as a headset
AKG K845BT
Polk Audio UltraFocus 8000

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.

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