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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.
Technical Data
Sketch
Amplitude & Impedance Frequency
Directivity pattern
Waterfall spectrum
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

Used in / Accessories:

KM 140

Ring-shaped magnets for the compensation of the stray magnetic field (magnetic shielding). The ring has to be glued on the rear pole-plate (e. g. with Pattex), reducing the stray magnetic field to a minimun, allowing speakers positionings of 20 cm apart from TV or computer screens.Suitable for: AL 200 8 OHM; AL 200 DV 2x8 OHM; GF 200 2 X 4 OHM; GF 250 2 X 4 OHM; TIW 360 8 OHM; TIW 360 DS 2 X 4 OHM; TIW 360 X 8 OHM; TIW 400 8 OHM; TIW 400 DS 2 X 4 OHM; W 250 S 4 OHM; W 250 S 8 OHM; W 300 S 4 OHM; W 300 S 8 OHM; WSP 21 S 8 OHM; WSP 26 S 8 OHM

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