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KEF LS50 vs. Bose Surround Speakers + 3
Active
No
Yes
Yes
No
Yes
Frequency range (max)
45000 Hz
28000 Hz
30000 Hz
Frequency range (min)
47 Hz
49 Hz
64 Hz
Impedance
8 Ω
4 - 6 Ω
Power (peak/max)
100 W
70 W
125 W
Power (RMS)
100 W
50 W
Sensitivity
85 dB
88 dB
Wireless connection
None
Bluetooth
Bluetooth
None
Bluetooth
Streaming standards
AirPlay, Spotify Connect, Tidal, AirPlay 2
Other connectors
Digital optical input (S/PDIF), Pre out (subwoofer), Analogue 3.5mm input/Line-in
Type of connection
Single-wire
Single-wire
Bi-wire
Available colours
Black, White, Silver, Grey, Blue, Red, Wenge
Black, White, Wenge
Black, White, Silver, Blue, Red, Wenge
Black, White, Grey, Wenge, Walnut
Black, White, Wenge
Dimensions (WxHxD)
Depth
278 mm
83.8 mm
180 mm
282 mm
83.8 mm
Height
302 mm
94 mm
240 mm
278 mm
93.9 mm
Width
200 mm
155 mm
170 mm
81.2 mm
Product weight
7.2 kg
1 kg
3.6 kg
5.5 kg
0.54 kg
Features
Remote control
Midrange driver
No
Yes
No
Quantity
1 ​
Signal separation
2-way
2-way
2-way
Tweeter drivers, size
1 inches
0.75 inches
0.9 inches
Tweeter drivers, type
Aluminum-dome
Aluminum / magnesium-dome
Type of box body
Bass reflex
Bass reflex
Bass reflex
Woofer driver, size
5.23 inches
4.5 inches
5 inches
Woofer drivers, quantity
1 ​
1 ​
1 ​