WS 13 BF 8 OHM

13 cm (5") HiFi low-midrange driver with 25 mm voice-coil, elastic rubber surround and coated paper cone. Due to balanced frequency response and high efficiency suitable as woofer and low-midrange driver.
No longer available.

Used in / Accessories:
CONVENTION MK IV SAT
FILOU
SKYLINE
AK 14.20
KM 80

sketch

frequency- and impedance response

Technical Data:
Rated power	40 Watt
Maximum power	60 Watt
Nominal impedance Z	8 Ohm
Frequency response	fc - 6000 Hz
Mean sound pressure level	88 dB (1 W/1 m)
Excursion limit	16 mm
Resonance frequency fs	51 Hz
Magnetic induction	1 Tesla
Magnetic flux	390 µ Weber
Height of front pole-plate	5 mm
Voice coil diameter	2,5 cm
Height of winding	1,1 cm
Cutout diameter	13,1 cm
Net weight	0,7 kg
D.C. resistance Rdc	5,4 Ohm
Mechanical Q factor Qms	2,65
Electrical Q factor Qes	0,61
Total Q factor Qts	0,5
Equivalent volume Vas	12 l
Effective piston area Sd	85 cm²
Dynamically moved mass Mms	8 g
Force factor Bxl	5,2 T · m
Inductance of the voice coil L	0,76 mH

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