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KEF - LS50 WIRELESS II Bookshelf Speakers (Pair) - Red

Model: LS50ARED2
SKU: 6434607
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$399.00
Specifications
  • Speaker Type
    Bookshelf
    RMS Power
    100 watts
    Wireless Connectivity
    Bluetooth, Wi-Fi
  • Key Specs
    • Speaker Type: Bookshelf
    • RMS Power: 100 watts (The maximum amount of continuous power the device is able to handle.)
    • Wireless Connectivity: Bluetooth, Wi-Fi (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
  • General
    • Brand: KEF
    • Model Number: LS50ARED2
    • Product Name: LS50 WIRELESS II Bookshelf Speakers (Pair)
    • Color: Red
  • Audio
    • Speaker Type: Bookshelf
    • Enclosure Type: Bass reflex
    • RMS Power: 100 watts (The maximum amount of continuous power the device is able to handle.)
    • Peak Power Handling: 200 watts (The maximum amount of power an electronic device, like a speaker, can handle without damage. This refers to short bursts of power, while root mean square (RMS) power handling indicates the amount of continuous power a device can sustain. Higher levels of distortion can also occur at peak power levels when the device is powered beyond its recommended usage.)
    • Impedance: 8 ohms (Describes the resistance of an electric signal throughout the system. Devices with low impedance require less power to deliver optimal signals but are more at risk for damage from overloading. Higher impedance requires more power but is more protected from overload damage.)
    • Minimum Frequency Response: 40 hertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The minimum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Maximum Frequency Response: 55 kilohertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The maximum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Sensitivity: 85 decibels
    • High Resolution Audio: true (Hear music the way musicians and sound technicians intended it to be heard. Products that support hi-res audio deliver audio signals with a dynamic range and bandwidth far greater than that of a standard CD so you'll be able to enjoy pure music with outstanding sound quality. The device supports high-resolution audio signals, which more closely resemble the quality of music as it was originally recorded, with more texture and detail than can be heard via typical music streaming services or CDs.)
    • Tweeter Type: Dome
    • Woofer Type: Cone
    • Number of Speakers: 1
    • Number of Tweeters: 1
    • Tweeter Size: 1 inches
    • Number of Midranges: 0
    • Number of Drivers: 2
    • Driver Size: 5.25 inches
    • Number of Woofers: 1
    • Woofer Size: 5.25 inches
  • Connectivity
    • Speaker Connectivity: Wireless
    • Wireless Connectivity: Bluetooth, Wi-Fi (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
    • Wireless Multi-Room Audio: true (Technology that allows multiple speakers and/or soundbars to be connected wirelessly and play audio in separate rooms.)
    • Wireless Multi-Room Technology: Apple AirPlay, Google Cast (Proprietary technology that allows multiple speakers and/or soundbars to be connected wirelessly and play audio in separate rooms.)
    • Audio Only Inputs: 1 x Coaxial digital audio, 1 x Optical digital audio, 1 x 3.5mm audio
    • Network Connector(s): 1 x LAN
    • Speaker Wire Connection Type: No speaker connections
  • Features
    • App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
  • Dimensions
    • Product Height: 18 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 24 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 17 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 4 pounds (The out of box weight of the item.)
  • Material
    • Tweeter Material: Aluminum
    • Driver Material: aluminum
    • Woofer Material: Aluminum
  • Certifications Listings & Approvals
    • ENERGY STAR Certified: false (Devices carrying the ENERGY STAR service mark, such as computer products and peripherals, kitchen appliances, and other products, generally use 20% to 30% less energy than required by federal standards.)
  • Warranty
    • Warranty - Parts: 2 years
    • Warranty - Labor: 2 years
  • Other
    • UPC: 637203046995

When it comes to physical technology, LS50 Wireless II takes its lead from KEF’s LS50 Meta passive loudspeakers. A truly revolutionary tool in the KEF acoustic armoury, Metamaterial Absorption Technology1 (MAT) is a highly complex maze-like structure, where each of the intricate channels efficiently absorbs a specific frequency. When combined, the channels act as an acoustic black hole, absorbing 99% of the unwanted sound that comes from the rear of the tweeter, eliminating the resulting distortion and providing a purer, more natural sound.

  • KEF LS50 Wireless II: The low-diffraction, curved baffle is precision modelled around the Uni-Q driver array, while eye-catching heat sinks and colour-matched ports are located on the well-equipped rear.
  • Subwoofer Output: For even more impact and bass extension, LS50 Wireless II features two subwoofer outputs, one on each speaker.
  • Features: Comprehensive applications and connectivity.
  • Music: Play all major music services and supports all major audio formats.
  • Technology: Metamaterial Absorption Technology for pure, natural sound.
Whats Included
  • LS50 WIRELESS II Bookshelf Speakers Pair

Q: How does the Metamaterial Absorption Technology work in the speakers?

A: Metamaterial Absorption Technology uses a complex maze-like structure with channels that absorb specific sound frequencies. These channels act as an acoustic black hole, absorbing 99% of unwanted sound coming from the rear of the tweeter. This eliminates distortion and provides a purer, more natural sound.

Q: What type of wireless connectivity does the speaker offer?

A: This speaker offers Bluetooth wireless connectivity.

Q: What is the purpose of the acoustic black hole in the speakers?

A: The acoustic black hole absorbs unwanted sound from the rear of the tweeter. This eliminates distortion and provides a purer, more natural sound.

Q: What are the dimensions of the speakers?

A: The LS50 Wireless II speakers have a height of 18 inches, a width of 24 inches, and a depth of 17 inches.

Q: Why are the speakers considered a revolutionary tool in the KEF acoustic armoury?

A: The speakers are considered revolutionary because they utilize Metamaterial Absorption Technology (MAT), a complex structure that acts as an acoustic black hole. This technology absorbs 99% of unwanted sound from the rear of the tweeter, eliminating distortion and delivering a purer, more natural sound.

Q: Is this speaker ENERGY STAR certified?

A: No, this speaker is not ENERGY STAR certified.

Q: Does this speaker support wireless multi-room audio?

A: Yes, this speaker supports wireless multi-room audio.

Q: Does this speaker have wireless connectivity?

A: Yes, this speaker has wireless connectivity.

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Pros for KEF - LS50 WIRELESS II Bookshelf Speakers (Pair) - Red
Sound Quality, Design, Ease of useSound Quality, BassThere were no pros for this productSound Quality, Design
Cons for KEF - LS50 WIRELESS II Bookshelf Speakers (Pair) - Red
Connectivity, BassThere were no cons for this productThere were no cons for this productThere were no cons for this product

Specs

Reviews

Customers are sayingCustomers are enthusiastic about the LS50 Wireless II bookshelf speakers' excellent sound quality, ease of use, and beautiful design. However, some customers have reported connectivity issues. A few others mentioned that the bass is not very heavy. Overall, the positive aspects of the speakers seem to outweigh the negative ones.
This summary was generated by AI based on customer reviews.
  • Sound Quality (56)
  • Ease of use (10)
  • Design (6)
  • Connectivity (6)
  • Bass (4)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

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