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KEF LS50 vs. Bose Surround Speakers + 3
Active
No
Yes
No
Yes
Yes
Frequency range (max)
45000 Hz
30000 Hz
20000 Hz
Frequency range (min)
47 Hz
64 Hz
55 Hz
Impedance
8 Ω
4 - 6 Ω
Power (peak/max)
100 W
125 W
33 W
Power (RMS)
100 W
50 W
Sensitivity
85 dB
88 dB
Wireless connection
None
Bluetooth
None
Bluetooth
Bluetooth
Streaming standards
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, Grey, Wenge, Walnut
Black, White, Wenge
White, Grey, Walnut
Dimensions (WxHxD)
Depth
278 mm
83.8 mm
282 mm
83.8 mm
135 mm
Height
302 mm
94 mm
278 mm
93.9 mm
170 mm
Width
200 mm
170 mm
81.2 mm
130 mm
Product weight
7.2 kg
1 kg
5.5 kg
0.54 kg
3.5 kg
Features
Remote control
Midrange driver
No
No
No
Signal separation
2-way
2-way
2-way
Tweeter drivers, size
1 inches
0.9 inches
0.8 inches
Tweeter drivers, type
Aluminum-dome
Fabric/silk dome (soft dome)
Type of box body
Bass reflex
Bass reflex
Bass reflex
Woofer driver, size
5.23 inches
5 inches
3 inches
Woofer drivers, quantity
1 ​
1 ​
1 ​