The Visaton W 130 X - 2 x 4 Ohm is a 13 cm (5") bass driver with a robust polypropylene cone.
Despite its compact size, the woofer achieves a considerable sound pressure level and can be used very flexibly thanks to the 2 x 4 Ohm double voice coil.
Technical data:
Power rating: 60 W
Music power handling: 90 W
Nominal impedance Z: (1) 4 Ohm(2) 8 Ohm(3) 2 Ohm
Frequency response (-10 dB): fu-6000 Hz
(fu: lower cut-off frequency depending on housing)
Average sound pressure level: 78 dB (1 W/1 m)
Maximum linear stroke: +/-5.8 mm (10 % THD)
Limit deflection: +/-11.5 mm
Resonance frequency fs: 40 Hz
Magnetic induction: 0.92 T
Magnetic flux: 694 µWb
Upper pole plate height: 6 mm
Voice coil diameter: 40 mm
winding height: 12 mm
baffle opening: 123 mm
Net weight: 1,5 kg
DC resistance Rdc: (1) 3,8 Ohm(2) 7,9 Ohm(3) 2,0 Ohm
Mechanical Q-factor Qms: (1) 4.27(2) 4.39(3) 4.59
Electrical Q-factor Qes: (1) 0.86(2) 0.41(3) 0.48
Total Q factor Qts: (1) 0.71(2) 0.37(3) 0.43
Equivalent air compliance volume Vas: (1) 5.10 l(2) 5.64 l(3) 5.30 l