Compare KEF Q650c vs KEF R2c vs Amphion Helium520C
Construction
Colors
Satin Black, Satin White, Walnut
Black Gloss, White Gloss, Walnut
Speaker: White, Black, or Walnut / Grilles: Stone grey, Traffic red, heather violet, Turquoise blue, Sky blue, Yellow green, Sulfur yellow, Beige brown
Drivers | Midrange
1x 165mm (6.50in.) aluminium Uni-Q
1x 125mm (5in.) aluminium cone
Drivers | Tweeter
1x 25mm (1in.)vented aluminium dome
1x 25mm (1in.) vented aluminium dome
1x 1" titanium tweeter
Drivers | Woofer
1x 165mm (6.5in.) aluminium + 2x 165mm (6.5in.) aluminium ABR passive radiator
2x 130mm (5.25in.) hybrid aluminium
2x 5.25" paper woofer
Form Factor
Center channel loudspeaker
Center channel loudspeaker
Center channel loudspeaker
Loudspeaker Type
2.5-way, passive radiator
3-way, closed
2-way, bass reflex
Dimensions
Size | Depth
304 mm (11.96 inches)
308.5 mm
265 mm (10.5")
Size | Height
210 mm (8.26 inches)
175 mm
160 mm (6.5")
Size | Width
629 mm (24.76 inches)
550 mm
510 mm (20")
Weight
13.6 kg (30 lbs)
16.9 kg (37.3 lbs.)
10 kg (22 lbs)
Function
Crossover
2.5kHz
400Hz, 2.9kHz
1600 Hz
Performance
Frequency Response
64Hz - 28kHz
74Hz-28kHz (±3dB)
48Hz - 25kHz (-6dB)
Impedance
8 ohms (min 4.2 ohms)
8 ohms (min 3.2 ohms)
8 ohms
Max Sound Level
110 dB
110 dB
Power Input
15-150 W
15-200 W
10-150 W
Sensitivity
87 dB
87 dB
90 dB
Production
Debut
2017
2018
2017-12 (redesigned)
Made In
China
China
Finland (handmade)
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