KEF LS50 Wireless II Active Speakers (White) - As Traded

Sale price$2,750.00

Pickup available at Audio Connection

Usually ready in 5+ days

KEF LS50 Wireless II Active Speakers (White) - As Traded

KEF LS50 Wireless II Active Speakers (White) - As Traded

Audio Connection

Pickup available, usually ready in 5+ days

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KEF LS50 Wireless II Active Speakers (White) - As Traded

Condition: Good. Chip in rear base of master and dent on top corner of secondary (see photos)

Includes: Remote, Power Cables and Ethernet Cable

SN: LSW0217979N32R2G / LSW0217979N32L2G

Overview

LS50 Wireless II is more than a high-performance loudspeaker; it’s the perfect all-in-one speaker system. It reveals every detail of your favourite music, which you stream from any source thanks to wireless compatibility with AirPlay 2, Chromecast and more.

The award-winning LS50 Wireless II connects to Roon without the need of configuration, so you can enjoy bit-perfect high-fidelity sound with zero fuss.

LS50 Wireless II features the 12th Generation Uni-Q driver array featuring an industry first - Metamaterial Absorption Technology (MAT). This particular Uni-Q driver, whilst being inspired by that of the R Series, has been engineered with regards to the overall system design. 

The active LS50 Wireless II incorporates all the technology described for the passive LS50 Meta, plus a few extras that either add to the presentation of the music - making it even more accurate - or add to the functionality. The electronics, mounted on the back, includes two channels of power amplification (one channel for each driver and each of higher power than the original LS50 Wireless) and the KEF Musical Integrity Engine (MIE). This is essentially custom Digital Signal Processing (DSP) that allows the acoustic engineer to do far more than is possible in any passive design. Each stereo pair comprises a Primary and a Secondary speaker. The former incorporates adjustments applicable to both speakers, such as bass extension, room acoustic compensation, source selection and placement/EQ. Bass may be extended to lower frequencies than is limited by the usual passive cabinet-size/sensitivity trade-off, the balance may be adjusted for speaker position and room acoustics and the all-pass delay inherent in passive crossovers may be eliminated. All adjustments are made using a smartphone app. This is available for both iOS and Android devices and is a free download either from the Apple App Store or the Google Play Store as appropriate.

Specification 

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

Frequency Range (-6dB) Measured at 85dB/1m: 40 Hz – 47 kHz
*Depends on EQ settings

Frequency Response (±3dB) Measured at 85dB/1m: 45 Hz – 28 kHz
*Depends on EQ settings

Amplifier Output Power (Per Speaker): LF: 280W, HF: 100W
Amplifier Class (Per Speaker): LF: Class D, HF: Class AB
Max SPL Measured at 1m: 108 dB

Wireless Streaming Features: AirPlay 2, Google Chromecast, ROON Ready, UPnP Compatible, Bluetooth 5.0, Plays with Audirvāna

Source Resolution: Network up to 384kHz/24bit, Optical up to 96kHz/24bit, Coaxial up to 192kHz/24bit, HDMI up to 192kHz/24bit
*Depends on source resolution

Interspeaker Connection: Wireless: all sources resampled to 96kHz/24bit PCM, Wired: all sources resampled to 192kHz/24bit PCM

Supported Format (All Inputs): MP3, M4A, AAC, FLAC, WAV, AIFF, ALAC, WMA, LPCM, Ogg Vorbis

Home Automation System: Elan, RTi, Crestron Home, Savant, Control4, URC

Supported Format (Network): MQA, DSF: DSD64, DSD128, DFF: DSD64

Dimensions (HWD per Speaker): 305 x 200 x 311 mm (12 x 7.9 x 12.2 in.)

Power Input: 100 – 240VAC 50/60Hz
Power Consumption: 200W (operating power), <2.0W (standby power)

Streaming Services: Spotify via Spotify Connect, Tidal via Tidal Connect, Amazon Music, Qobuz, Deezer, QQ Music via QPlay (coming soon), Internet Radio, Podcast
*Depends on services availability in different countries

Primary Speaker Inputs: HDMI eARC, TOSLINK Optical, Digital Coaxial, Analog 3.5mm Auxiliary, USB Type A (service), RJ45 Ethernet (network), RJ45 Ethernet (interspeaker)
Output: RCA Subwoofer output
Wi-Fi Network Frequency Band: Dual-band 2.4 GHz / 5 GHz

Secondary Speaker Inputs: USB Type A (service), RJ45 Ethernet (interspeaker)
Output: RCA Subwoofer output