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Kef LS50 Wireless II Active Speaker 2 No of Drivers 760W Black (Pair)
Active Speakers

Kef LS50 Wireless II Active Speaker 2 No of Drivers 760W Black (Pair)

Model: LS50 Wireless II

Driver Units

  • Uni-Q Driver Array:
    • LF: 130 mm (5.25 in.) aluminum cone
    • HF: 25 mm (1 in.) vented aluminum dome with Metamaterial Absorption Technology

Frequency range (-6dB)...

Model: LS50 Wireless II

Driver Units

  • Uni-Q Driver Array:
    • LF: 130 mm (5.25 in.) aluminum cone
    • HF: 25 mm (1 in.) vented aluminum dome with Metamaterial Absorption Technology

Frequency range (-6dB) measured at 85dB/1m: 40 Hz – 47 kHz *

Frequency response (3dB) measured at 85dB/1m: 45 Hz – 28 kHz *

Amplifier output power (per speaker)

  • LF: 280W
  • HF: 100W

...

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Product report

Description

Description

Model: LS50 Wireless II

Driver Units

  • Uni-Q Driver Array:
    • LF: 130 mm (5.25 in.) aluminum cone
    • HF: 25 mm (1 in.) vented aluminum dome with Metamaterial Absorption Technology

Frequency range (-6dB) measured at 85dB/1m: 40 Hz – 47 kHz *

Frequency response (±3dB) measured at 85dB/1m: 45 Hz – 28 kHz *

Amplifier output power (per speaker)

  • LF: 280W
  • HF: 100W

Amplifier class (per speaker)

  • LF: Class D
  • HF: Class AB

Maximum SPL measured at 1m: 108 dB

Wireless streaming features

  • AirPlay 2
  • Google Chromecast
  • ROON Ready (upcoming)
  • UPnP Compatibility
  • Bluetooth 4.2

Streaming services

  • Spotify via Spotify Connect
  • Tidal via Tidal Connect
  • Amazon Music
  • Qobuz
  • Deezer
  • QQ Music via QPlay (upcoming)
  • Internet Radio
  • Podcast

Source resolution

  • Network up to 384kHz/24bit
  • Optical up to 96kHz/24bit
  • Coaxial up to 192kHz/24bit
  • HDMI up to 192kHz/24bit

Inter-speaker connection

  • Wireless: all sources resampled to 96kHz/24bit PCM
  • Wired: all sources resampled to 192kHz/24bit PCM

Supported formats (all inputs): MP3, M4A, AAC, FLAC, WAV, AIFF, ALAC, WMA, LPCM, and Ogg Vorbis

Supported formats (network): MQA, DSF: DSD64, DSD128, DSD256, DFF: DSD64

Dimensions (HWD per speaker): 305 x 200 x 311 mm

Weight (per pair): 20.1kg

Input voltage: 100 – 240VAC 50/60Hz

Power consumption: 200W (operating power)

Primary speaker

Inputs

  • HDMI eARC
  • TOSLINK Optical Digital
  • Coaxial
  • Analog 3.5mm
  • Auxiliary
  • USB Type A (service)
  • RJ45 Ethernet (network)
  • RJ45 Ethernet (for inter-speaker connections)

Output: RCA Subwoofer Output

Wi-Fi network standard: IEEE 802.11a/b/g/n/ac IPv4, IPv6

Wi-Fi network frequency band: Dual-band 2.4 GHz / 5 GHz

Secondary speaker

Inputs

  • USB Type A (service)
  • RJ45 Ethernet (for inter-speaker connections)

Output: RCA Subwoofer Output

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Technical Specifications

Power (RMS)
760 W

Power (RMS)

The RMS power indicates the continuous performance of the speaker, meaning how loud and clear it can play for a long period of time without distortion.
Frequency Response
40 - 47000 Hz

Frequency Response

Indicates the range of frequencies that the speaker can reproduce, from the lowest bass (Hz) to the highest notes (kHz). The wider the spectrum, the more “full” and natural the sound.
Max SPL
108 dB

Max SPL

Indicates the maximum sound level the speaker can reach without distortion. The higher the value (in dB), the louder the sound.
Driver Configuration
2 No of Drivers

Driver Configuration

Refers to how the speaker “distributes” low, mid, and high frequencies among its drivers (e.g. 2-way or 3-way). More “ways” mean clearer and more separated sound.

2

The sound frequencies are reproduced by two speakers, a tweeter for the highs and a woofer for the lows.
Bass Driver
5.25

Bass Driver

The speaker that reproduces low frequencies (bass). The larger the diameter, the deeper and fuller the bass.

Main Specifications

Quantity
Pair
Weight
20.1 kg
Colour
Black
Connectivity
Coaxial, Ethernet, Optical, RCA, USB-A, Bluetooth, HDMI

Dimensions

Height
30.5 cm
Width
20 cm
Length
31.1 cm

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (1)

Reviews

1
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Review this product
  1. 1
  2. 4 stars
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  • soufras2016
    5
    8 out of 9 members found this review helpful
    soufras2016

    Very high-quality speaker construction, and it also surpasses the amplifiers. But, really, what left me speechless is the sound it produces!!!! It is literally crystal clear no matter how loud I turn it up.
    And if we want the ultimate experience, we combine it with the SubW KC62!!!
    GOODBYE!

    Translated from Greek ·
    • Rich sound
    • Sound quality
    • Construction quality
    • Value for money
    • Ease of adjustment
    Did you find this review helpful?
  • soufras2016
    5
    soufras2016

    Very high-quality speaker construction, and it also surpasses the amplifiers. But, really, what left me speechless is the sound it produces!!!! It is literally crystal clear no matter how loud I turn it up.
    And if we want the ultimate experience, we combine it with the SubW KC62!!!
    GOODBYE!

    Translated from Greek ·
    8
  • See all

Description & Specifications

Model: LS50 Wireless II

Driver Units

  • Uni-Q Driver Array:
    • LF: 130 mm (5.25 in.) aluminum cone
    • HF: 25 mm (1 in.) vented aluminum dome with Metamaterial Absorption Technology

Frequency range (-6dB) measured at 85dB/1m: 40 Hz – 47 kHz *

Frequency response (±3dB) measured at 85dB/1m: 45 Hz – 28 kHz *

Amplifier output power (per speaker)

  • LF: 280W
  • HF: 100W

Amplifier class (per speaker)

  • LF: Class D
  • HF: Class AB

Maximum SPL measured at 1m: 108 dB

Wireless streaming features

  • AirPlay 2
  • Google Chromecast
  • ROON Ready (upcoming)
  • UPnP Compatibility
  • Bluetooth 4.2

Streaming services

  • Spotify via Spotify Connect
  • Tidal via Tidal Connect
  • Amazon Music
  • Qobuz
  • Deezer
  • QQ Music via QPlay (upcoming)
  • Internet Radio
  • Podcast

Source resolution

  • Network up to 384kHz/24bit
  • Optical up to 96kHz/24bit
  • Coaxial up to 192kHz/24bit
  • HDMI up to 192kHz/24bit

Inter-speaker connection

  • Wireless: all sources resampled to 96kHz/24bit PCM
  • Wired: all sources resampled to 192kHz/24bit PCM

Supported formats (all inputs): MP3, M4A, AAC, FLAC, WAV, AIFF, ALAC, WMA, LPCM, and Ogg Vorbis

Supported formats (network): MQA, DSF: DSD64, DSD128, DSD256, DFF: DSD64

Dimensions (HWD per speaker): 305 x 200 x 311 mm

Weight (per pair): 20.1kg

Input voltage: 100 – 240VAC 50/60Hz

Power consumption: 200W (operating power)

Primary speaker

Inputs

  • HDMI eARC
  • TOSLINK Optical Digital
  • Coaxial
  • Analog 3.5mm
  • Auxiliary
  • USB Type A (service)
  • RJ45 Ethernet (network)
  • RJ45 Ethernet (for inter-speaker connections)

Output: RCA Subwoofer Output

Wi-Fi network standard: IEEE 802.11a/b/g/n/ac IPv4, IPv6

Wi-Fi network frequency band: Dual-band 2.4 GHz / 5 GHz

Secondary speaker

Inputs

  • USB Type A (service)
  • RJ45 Ethernet (for inter-speaker connections)

Output: RCA Subwoofer Output

Manufacturer

Manufacturer Details

Warnings & Safety Information

Technical Specifications

Power (RMS)
760 W

Power (RMS)

The RMS power indicates the continuous performance of the speaker, meaning how loud and clear it can play for a long period of time without distortion.
Frequency Response
40 - 47000 Hz

Frequency Response

Indicates the range of frequencies that the speaker can reproduce, from the lowest bass (Hz) to the highest notes (kHz). The wider the spectrum, the more “full” and natural the sound.
Max SPL
108 dB

Max SPL

Indicates the maximum sound level the speaker can reach without distortion. The higher the value (in dB), the louder the sound.
Driver Configuration
2 No of Drivers

Driver Configuration

Refers to how the speaker “distributes” low, mid, and high frequencies among its drivers (e.g. 2-way or 3-way). More “ways” mean clearer and more separated sound.

2

The sound frequencies are reproduced by two speakers, a tweeter for the highs and a woofer for the lows.
Bass Driver
5.25

Bass Driver

The speaker that reproduces low frequencies (bass). The larger the diameter, the deeper and fuller the bass.

Main Specifications

Quantity
Pair
Weight
20.1 kg
Colour
Black
Connectivity
Coaxial, Ethernet, Optical, RCA, USB-A, Bluetooth, HDMI

Dimensions

Height
30.5 cm
Width
20 cm
Length
31.1 cm

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (1)

1
0.0
There are no verified reviews
Review this product
  1. 1
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • soufras2016
    5
    8 out of 9 members found this review helpful
    soufras2016

    Very high-quality speaker construction, and it also surpasses the amplifiers. But, really, what left me speechless is the sound it produces!!!! It is literally crystal clear no matter how loud I turn it up.
    And if we want the ultimate experience, we combine it with the SubW KC62!!!
    GOODBYE!

    Translated from Greek ·
    • Rich sound
    • Sound quality
    • Construction quality
    • Value for money
    • Ease of adjustment
    Did you find this review helpful?
  • soufras2016
    5
    soufras2016

    Very high-quality speaker construction, and it also surpasses the amplifiers. But, really, what left me speechless is the sound it produces!!!! It is literally crystal clear no matter how loud I turn it up.
    And if we want the ultimate experience, we combine it with the SubW KC62!!!
    GOODBYE!

    Translated from Greek ·
    8
  • See all