Compare KEF Q550 vs Amphion Argon3S vs Amphion Helium 520
Construction
Colors
Satin Black, Satin White, Walnut
Speaker: White, Black, or Walnut / Grilles: Stone grey, Traffic red, heather violet, Turquoise blue, Sky blue, Yellow green, Sulfur yellow, Beige brown
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 130mm (5.25in.) aluminum Uni-Q
Drivers | Tweeter
1x 25mm (1in.)vented aluminium dome
1x 1" titanium tweeter
1x 1" titanium tweeter
Drivers | Woofer
1x 130mm (5.25in.) aluminum + 2x 130mm (5.25in.) aluminum ABR passive radiator
1x 6.5" aluminium woofer + 1x 6.5" passive radiator
2x 5.25" paper woofer
Form Factor
Floorstanding loudspeaker
Bookshelf loudspeaker
Floorstanding loudspeaker
Loudspeaker Type
2.5-way, passive radiator
2-way, passive radiator
2-way, bass reflex
Dimensions
Size | Depth
278 mm (10.94 inches)
305 mm (12")
215 mm (8.5")
Size | Height
873 mm (34.37 inches)
380 mm (15")
1072 mm (42.25")
Size | Width
180 mm (7.08 inches)
191 mm (7.5")
160 mm (6.5")
Weight
14.5 kg (32 lbs)
12 kg (26 lbs)
16 kg (35 lbs)
Function
Crossover
2.5kHz
1600 Hz
1600 Hz
Performance
Frequency Response
58Hz-28kHz
38Hz - 25kHz (-6dB)
40Hz - 25kHz (-6dB)
Impedance
8 ohms (min 3.8 ohms)
8 ohms
4 ohms
Max Sound Level
110 dB
Power Input
15-130 W
50-150 W
10-150 W
Sensitivity
87 dB
87 dB
90 dB
Production
Debut
2017
2017-12 (redesigned)
2017-12 (redesigned)
Made In
China
Finland (handmade)
Finland (handmade)
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