Compare Amphion FlexBase25 vs Sonus faber Gravis II vs Sonus faber Gravis III
Variants
Amp
Walnut
Piano Black
White Matte
Connectivity
Ports
LFE (Low Frequency Effect) mono RCA + LINE mono RCA + HIGH LEVEL Neutrik 4-pole Speakon
2x LINE Left and Right / LFE RCA + 1x LINE XLR HIGH LEVEL Neutrik 4-pole Speakon
Construction
Colors
Wood, White, Black, Wenge
Walnut, Black, Wenge
Drivers | Subwoofer
10" (25cm) aluminium
1x 260 mm (10”) long throw, treated paper cone down-firing driver + 1 x 260 mm (10”) front-firing aluminum alloy diaphragm passive infra-bass radiator
1 x 250 mm (10”) long throw, sandwich honeycomb cone, wide rubber surround LF unit
Form Factor
Subwoofer
Subwoofer
Loudspeaker Type
1-way closed, stereo
Drone cone phase-inverter loading, active subwoofer with Class AB amplifier
Sealed box loading, single driver, active subwoofer
Dimensions
Size | Depth
342 mm
16 in (408 mm)
19.5 in (495 mm)
Size | Height
840 mm
15.9 in (404 mm)
16.3 in (415 mm)
Size | Width
321 mm
14 in (356 mm)
15.7 in (400 mm)
Weight
45 kg (99 lbs)
47.3 lbs (21.5 kg)
58.8 lbs (26.7 kg)
Function
Amplifier
High linearity Class AB
High performance Class AB
Crossover
35 - 260 Hz Variable
Continuously adjustable 30 to 120 Hz
Continuously adjustable 40 to 150 Hz
Performance
Frequency Response
20-260Hz (low pass) / 35-260Hz (high pass)
- 6dB, from 25 Hz to Fc (user adjustable)
- 6dB, from 25 Hz to Fc (user adjustable)
Impedance
25k ohms
Output Impedance
100 ohms
Power Consumption
450 W (rated), 0.5 W (stand-by)
700 W (rated), 2W (standby)
Power Output
600W RMS into 4 ohms @ 1% THD
350 W (nominal), 700 W (peak)
600 W (nominal), 900 W (peak)
Production
Debut
2020
Made In
Finland (handmade)
Italy (handmade)
Italy (handmade)
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