W 250 - 8 Ohm

Art. No. 9067

25 cm (10") woofer with air-dried cone and cone reinforcement. Front or rear mounting possible. Very good price/performance ratio and high power handling. Recommended cabinets: Volume/Principle BR-Channel fb 30 l/bass reflex BR 15.34 (11 cm lang) 46 Hz 50 l/bass reflex BR 15.34 (9 cm lang) 38 Hz 70 l/bass reflex BR 15.34 (8 cm lang) 38 Hz

Technical Data

Sketch

Recommended cabinets

Amplitude & Impedance Frequency

Rated power	90 W
Maximum power	130 W
Nominal impedance Z	8 Ohm
Frequency response	fu–6000 Hz
(fu: Lower cut-off frequency depending on cabinet)	.
Mean sound pressure level	90 dB (1 W/1 m)
Excursion limit	+/−10 mm
Resonance frequency fs	45 Hz
Magnetic induction	1.0 T
Magnetic flux	660 µWb
Height of front pole-plate	6 mm
Voice coil diameter	35 mm
Height of winding	12 mm
Cutout diameter	236 mm
Net weight	1.5 kg
D.C. resistance Rdc	6.8 Ohm
Mechanical Q factor Qms	3.57
Electrical Q factor Qes	1.00
Total Q factor Qts	0.78
Equivalent volume Vas	135 l
Effective piston area Sd	360 cm²
Dynamically moved mass Mms	27 g
Force factor Bxl	6.4 Tm
Inductance of the voice coil L	1.1 mH
Connections	4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-)

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Recommended cabinets

Volume/Principle	BR-Channel	fb
30 l/bass reflex	BR 15.34 (11 cm lang)	46 Hz
50 l/bass reflex	BR 15.34 (9 cm lang)	38 Hz
70 l/bass reflex	BR 15.34 (8 cm lang)	38 Hz

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