Owner's Manual
11
Recommended enclosure (when used as universal subwoofers)
Sealed box
Net volume 3 L
Lower limiting frequency (-3dB)
63 Hz
DSP settings - Highpass: Butterworth; 12 dB/octave; crossover frequency 40 Hz
- Additional EQ lter: center frequency 90 Hz; Q factor 3.0; gain -4 dB
- Lowpass: Butterworth; 24 dB/octave; crossover frequency 80 - 100 Hz
Ported box For one subwoofer For two subwoofers
Net volume 12 L 24 L
Port diameter 60 mm / 2.36” 80 mm / 3.15”
Port area 28 cm² 50 cm²
Port length 25 cm / 9.84” 20 cm / 3.94”
Port tuning frequency 46 Hz 46 Hz
Lower limiting frequency (-3dB)
45 Hz 45 Hz
DSP settings - Highpass: Self-Dene; crossover frequency 40 Hz; Q factor 1.3
- Additional EQ lter: center frequency 67 Hz; Q factor 3.0; gain -3 dB
- Lowpass: Butterworth; 24 dB/octave; crossover frequency 80 - 100 Hz
Technical Data
Power RMS / max. (P) .............................................................................. 200 / 400 Watts
Impedance (Z) .......................................................................................... 1 x 2 Ohms
DC resistance (Re) ................................................................................... 2.0 Ohms
Resonance frequency (FS)....................................................................... 49 Hz
Mechanical Q factor (Qms)....................................................................... 3.80
Electrical Q factor (Qes) ........................................................................... 0.61
Total Q factor (Qts) ................................................................................... 0.53
Compliance (Cms) .................................................................................... 210 μm/N
Equivalent air volume (Vas) ...................................................................... 13.9 L
Force factor (B*l) ...................................................................................... 7.1 Tm
Efciency 1 W / 1 m (SPL)........................................................................ 90 dB
Cone area (Sd) ......................................................................................... 214 cm²
Moving mass (Mms) ................................................................................. 47.4 g
Cone material ........................................................................................... Woven berglass
Mechanical resistance (Rms) ................................................................... 3.97 kg/s
Voice coil diameter (Ø) ............................................................................. 42.5 mm
Voice coil winding height .......................................................................... 12.5 mm
Max. linear excursion (Xmax) ................................................................... +/- 4.0 mm
Outer diameter (Ø) ................................................................................... 239 mm / 9.41”
Installation diameter (Ø) ........................................................................... 175 mm / 6.89”
Installation depth ...................................................................................... 40 mm / 1.57”
Compatibility ............................................................................................. Suitable for all BMW model
ranges with under-seat
subwoofers and universal use