Compare B&W Formation Bass vs Sonos Sub vs Amphion FlexBase25
Connectivity
Ports
RJ45 + USB (service only)
1x 100Mbps LAN
Wireless Connectivity
Bluetooth 4.1 + WiFi
WiFi 5
Construction
Colors
Black
Black or Whtie with gloss finish
Drivers | Subwoofer
2 x 165mm (6.5 in) long throw cones
2x force-canceling drivers
10" (25cm) aluminium
Form Factor
Wireless subwoofer
Wireless subwoofer
Loudspeaker Type
Base reflex
1-way closed, stereo
Dimensions
Size | Depth
260mm (10.2 in)
6.2" / 158 mm
342 mm
Size | Height
254mm (10 in)
15.3" / 389 mm
840 mm
Size | Width
281mm (11.1 in)
15.8" / 402 mm
321 mm
Weight
12.5kg (27.6 lbs)
36.3 lbs / 16 kg
45 kg (99 lbs)
Function
Amplifier
Class D
2x Class-D digital amplifiers
Bluetooth Profiles
AptX HD, AAC, SBC
Crossover
35 - 260 Hz Variable
Operating Temperature
32°F to 104°F / 0°C to 40°C
Processor
Quad Core 1.5 GHz
Performance
Frequency Response
20Hz - 150Hz ±3dB
Down to 25Hz
20-260Hz (low pass) / 35-260Hz (high pass)
Impedance
25k ohms
Memory | Capacity
256 MB
Memory | Type
SDRAM
Output Impedance
100 ohms
Power Output
250W
600W RMS into 4 ohms @ 1% THD
Storage
256 MB
Production
Debut
2019-04
2020
Made In
Finland (handmade)
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