Match MW 8BMW-D 8” OEM Fit Underseat Subwoofer Pair for BMW 3-Series F31

The MW 8BMW-D subwoofers are not only the ideal upgrade for those who are dissatisfied with the bass response in their BMW, but particularly for  those who want to realize unprecedented space saving installation concepts.

The BMW-specific baskets and Plug & Play connectors allow a fast and easy installation into the original mounting positions of all BMW model ranges with under-seat subwoofers.

Nevertheless, these subwoofers are also perfectly qualified for universal applications. Thanks to the very low mounting depth, extremely compact sealed enclosures are no problem at all whereas the oversized 1.7" / 42.5 mm voice coil assures high power handling.

Furthermore, the special speaker connector with its gold-plated screw terminals allows two different configurations. If the metal bracket is mounted the woofer has an impedance of 1 x 4 Ohms - without the metal bracket each voice coil can be driven separately (in this case 2 x 2 Ohms) which is perfect  for the combination with MATCH Plug & Play amplifiers.

No matter if these subwoofers are used as bass upgrade in your BMW or as problem-solver in small sub enclosures, they will definitely add loads of powerful bass for musical enjoyment.

Features

8" subwoofers with very low mounting depth for shallow subwoofer designs and under-seat installation in BMW vehicles

Allows to use extremely compact, sealed enclosures

Oversized 42.5 mm / 1.7" voice coil for high power handling

2 x 2 Ohms impedance per woofer for most flexible connection options

Plug connectors for original BMW cable harness are included in delivery

Fits directly into the original mounting positions under the front seats of all BMW model ranges with under-seat subwoofers

Also ideal for universal use in ultra-flat subwoofer constructions

Special features:

Switch it parallel

The speaker connector with its gold-plated screw terminals allows two different configurations. If the metal bracket is mounted the woofer has an impedance of 1 x 4 Ohms. Without the metal bracket each voice coil can be driven separately (impedance in this case 2 x 2 Ohms) which guarantees a perfect interaction with MATCH Plug & Play amplifiers.

Technical data

Power RMS / max.P200 / 400 Watts

Impedance Z2 x 2 Ω

DC resistance Re3.4 Ω

Resonance frequency Fs46 Hz

Mechanical Q factor Qms4.45

Electrical Q factor Qes0.59

Total Q factorQts0.52

ComplianceCms272 µm/N

Equivalent air volumeVas17.3 L

Force factor B*I8.6 Tm

Efficiency 1 W / 1 mSPL90 dB

Cone area Sd214 cm²

Moving mass Mms44.2 g

Cone material Hand-scooped paper cone

Mechanical resistance Rms0.74 kg/s

Voice coil diameterø42.5 mm

Voice coil winding height 12.5 mm

Max. linear excursion Xmax+/- 4.0 mm

Outer diameterø239 mm / 9.41"

Installation diameterø175 mm / 6.89"

Installation depth 40 mm / 1.57"

Recommended enclosure volumes  

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 filter: center frequency 90 Hz; Q factor 3.0; gain -4 dB

Lowpass: Butterworth; 24 dB/octave; crossover frequency 80 - 100 Hz

Vented box For one subwooferFor two subwoofers

Net volume 12 L24 L

Port diameterø60 mm / 2.36"80 mm / 3.15

Port area 28 cm²50 cm²

Port length 25 cm / 9.84"20 cm / 3.94"

Port tuning frequencyFb46 Hz46 Hz

Lower limiting frequency (-3dB) 45 Hz45 Hz

DSP settings

Highpass: Self-Define; crossover frequency 40 Hz; Q factor 1.3

Additional EQ filter: center frequency 67 Hz; Q factor 3.0; gain -3 dB

Lowpass: Butterworth; 24 dB/octave; crossover frequency 80 - 100 Hz

Contents 

2 x Subwoofer MATCH MW 8BMW-D

2 x Plug connector for original BMW cable harness

1 x Instruction manual

We're a genuine UK based company with over 30 years experience and full back up technical knowledge Your sale is important to us whether you purchase a multi-media system or a tax disc holder you can be assured of our 100% commitment If you do not see what you are looking for please ask as we are adding new items every day Please note - some items may incur extra shipping charges that have to be sent by courier and are too large / expensive to be sent by Royal Mail (for example headlamps, headunits, speakers, lowering springs etc) to the following postcode areas, Channel Islands, BT, most IV, HS, KA-27-28, KW-15-17, AB30-38, AB44-56, FK17-99, G83, KW1-14, PA21-40, PH18-26, PH30-41, PH49-50, all ZE, IM, and any other non mainland postcodes. Please also note that delivery times are normally 2-3 working days for these postcode regions Please note - For items that have to be sent by courier in Europe there maybe an extra charge for some countries such as NORWAY, ICELAND, MALTA & CYPRUS