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ATC SCM11 vs. KEF LS50 + 3
Active
No
Yes
Yes
No
Frequency range (max)
22000 Hz
45000 Hz
47000 Hz
50000 Hz
Frequency range (min)
56 Hz
47 Hz
43 Hz
38 Hz
Impedance
8 Ω
8 Ω
8 Ω
Power (peak/max)
300 W
100 W
Power (RMS)
300 W
100 W
230 W
Sensitivity
85 dB
85 dB
87 dB
Wireless connection
None
None
Bluetooth
None
Streaming standards
AirPlay, Spotify Connect, Tidal
Other connectors
Digital optical input (S/PDIF), RCA stereo input, USB, Pre out (subwoofer)
Type of connection
Single-wire
Available colours
Black, White, Cherry, Ash, Wenge
Black, White, Silver, Grey, Blue, Red, Wenge
Black, White, Silver, Wenge
Black, White, Silver, Grey, Blue, Red, Wenge
Black, White, Grey, Brown, Walnut
Dimensions (WxHxD)
Depth
236 mm
278 mm
308 mm
336 mm
Height
232 mm
302 mm
300 mm
422 mm
Width
381 mm
200 mm
200 mm
200 mm
Product weight
10.9 kg
7.2 kg
20.2 kg
13.5 kg
Midrange driver
No
No
No
Yes
Quantity
1 ​
Signal separation
2-way
2-way
2-way
3-way
Tweeter drivers, size
1 inches
1 inches
1 inches
1 inches
Tweeter drivers, type
Fabric/silk dome (soft dome)
Aluminum-dome
Aluminum-dome
Aluminum-dome
Type of box body
Bass reflex
Bass reflex
Bass reflex
Woofer driver, size
6 inches
5.23 inches
5.25 inches
6.5 inches
Woofer drivers, quantity
1 ​
1 ​
1 ​
1 ​