TIW 400 DS 2 x 4 OHM

Art. No. -

40 cm (15") High-End woofer with black cellulose cone, large magnet and heavy aluminium die-cast basket. Extremely high power handling due to 60 mm voice-coil, capton voice coil carrier and magnet vent. Univesal connection possibilities due to the double voice-coil (2 x 4 ohms) allowing the unit to be conncted up for 2 ohm ore 8 ohm use.

No longer available.

Technical Data

Rated power
300 Watt
Maximum power
700 Watt
Nominal impedance Z
Eine Schwingspule offen: 4 Ohm / Beide Schwingspulen in Reihe: 8 Ohm / Beide Schwingspulen parallel: 2 Ohm
Frequency response
Eine Schwingspule offen: fu - 3000 Hz / Beide Schwingspulen in Reihe: fc - 2000 Hz / Beide Schwingspulen parallel: fc - 2000 Hz
(fu: Lower cut-off frequency depending on cabinet)
.
Mean sound pressure level
Eine Schwingspule offen: 88 dB (1 W/1 m) / Beide Schwingspulen in Reihe: 91 dB (1 W/1 m) / Beide Schwingspulen parallel: 91 dB (1 W/1 m)
Excursion limit
27 mm
Resonance frequency fs
Eine Schwingspule offen: 21 Hz / Beide Schwingspulen in Reihe: 20 Hz / Beide Schwingspulen parallel: 21 Hz
Magnetic induction
1.06 Tesla
Magnetic flux
2000 µ Weber
Height of front pole-plate
10 mm
Voice coil diameter
60 mm
Height of winding
25 mm
Cutout diameter
357 mm
Net weight
6.7 kg
D.C. resistance Rdc
Eine Schwingspule offen: 3.5 Ohm / Beide Schwingspulen in Reihe: 6.6 Ohm / Beide Schwingspulen parallel: 1.7 Ohm
Mechanical Q factor Qms
Eine Schwingspule offen: 6.27 / Beide Schwingspulen in Reihe: 5.84 / Beide Schwingspulen parallel: 6.30
Electrical Q factor Qes
Eine Schwingspule offen: 0.90 / Beide Schwingspulen in Reihe: 0.34 / Beide Schwingspulen parallel: 0.43
Total Q factor Qts
Eine Schwingspule offen: 0.79 / Beide Schwingspulen in Reihe: 0.32 / Beide Schwingspulen parallel: 0.41
Equivalent volume Vas
Eine Schwingspule offen: 422 l / Beide Schwingspulen in Reihe: 440 l / Beide Schwingspulen parallel: 400 l
Effective piston area Sd
755 cm2
Dynamically moved mass Mms
Eine Schwingspule offen: 110 g / Beide Schwingspulen in Reihe: 110 g / Beide Schwingspulen parallel: 115 g
Force factor Bxl
Eine Schwingspule offen: 7.5 T m / Beide Schwingspulen in Reihe: 16.5 T m / Beide Schwingspulen parallel: 7.7 T m
Inductance of the voice coil L
Eine Schwingspule offen: 1.2 mH / Beide Schwingspulen in Reihe: 2.3 mH / Beide Schwingspulen parallel: 0.6 mH
Frequency- and impedance response
Directivity pattern
Directivity pattern
Directivity pattern
Waterfall spectrum
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