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Woofer 

ARN 6618

Woofer for HiFi loudspeaker systems.

ACOUSTICAL DATA
Rated noise power 1) 70  W
Short term maximum power 2) 140  W
Rated impedance Ohm
Resonance frequency Fs 4) 30.0   Hz
Rated frequency range 30 - 3000  Hz
Sensitivity 3) 87  dB
 
TS PARAMETERS
Acquired by MLSSA D-0-10  
Effective piston area Sd 216  cm2
DC resistance of voice coil Re 7.3  Ohm
Mechanical Q factor Qms 4.97 
Electrical Q factor Qes 0.83 
Total Q factor Qts 0.71 
Voice coil inductance Le 0.8 
Equivalent volume Vas 76.7  l
Moving mass (including air load) Mms 19.0  g
Suspension compliance Cms 1166  uM/Newton
Force factor Bl 5.9  Tm
Maximum linear displacement Xmax 5) 6.4  mm
 
MECHANICAL DATA
Voice coil carrier material aluminium 
Voice coil diameter 25.4  mm
Winding height of voice coil 13  mm
Yoke diameter 25  mm
Air gap height mm
Magnet external diameter 82  mm
Magnet internal diameter 33  mm
Magnet height 17  mm
Compensating magnet external diameter mm
Compensating magnet internal diameter mm
Compensating magnet height mm
Weight 1.1  kg
 
TEST CONDITIONS
Sweep voltage V
Frequency range 30 - 3000  Hz
 
1) DIN IEC 268-5, closed box 20 dm3.
2) CSN IEC 268-5, closed box 20 dm3.
3) CSN IEC 268-5, standard baffle. 1W, 1 m, 200 - 3000 Hz
4) ±20%
5) Peak - peak 
Frequency response
Impedance Magnitude - Ohms
Drawing
 
Counter: 239757