Compare Amphion FlexBase25 vs Sonus faber Gravis I vs Sonus faber Gravis II
Variants
Amp
Walnut
Piano Black
White Matte
Walnut
Piano Black
White Matte
Connectivity
Ports
LFE (Low Frequency Effect) mono RCA + LINE mono RCA + HIGH LEVEL Neutrik 4-pole Speakon
LFE (Low Frequency Effect) mono RCA + LINE mono RCA + HIGH LEVEL Neutrik 4-pole Speakon
Construction
Colors
Wood, White, Black, Wenge
Wood, White, Black, Wenge
Drivers | Subwoofer
10" (25cm) aluminium
1 x 210 mm (8”) long throw, treated paper cone, wide rubber surround LF unit
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
Form Factor
Subwoofer
Subwoofer
Loudspeaker Type
1-way closed, stereo
Sealed box loading, down firing active subwoofer
Drone cone phase-inverter loading, active subwoofer with Class AB amplifier
Dimensions
Size | Depth
342 mm
12.4 in (316 mm)
16 in (408 mm)
Size | Height
840 mm
13.1 in (334 mm)
15.9 in (404 mm)
Size | Width
321 mm
11.2 in (286 mm)
14 in (356 mm)
Weight
45 kg (99 lbs)
32 lbs (14.5 kg)
47.3 lbs (21.5 kg)
Function
Amplifier
High linearity Class AB
High linearity Class AB
Crossover
35 - 260 Hz Variable
Continuously adjustable 30 to 120 Hz
Continuously adjustable 30 to 120 Hz
Performance
Frequency Response
20-260Hz (low pass) / 35-260Hz (high pass)
- 6dB, from 30 Hz to Fc (user adjustable)
- 6dB, from 25 Hz to Fc (user adjustable)
Impedance
25k ohms
Output Impedance
100 ohms
Power Consumption
200 W (rated), 0.5 W (stand-by)
450 W (rated), 0.5 W (stand-by)
Power Output
600W RMS into 4 ohms @ 1% THD
150 W (nominal), 250 W (peak)
350 W (nominal), 700 W (peak)
Production
Made In
Finland (handmade)
Italy (handmade)
Italy (handmade)
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