MATCH UP W8BMW-S Ultra Flat Subwoofer Upgrade kit for BMW's

Maximum POWER for BMW sound concepts

The ultra-flat UP W8BMW-S subwoofers are playing extremely dynamically and punchy. Especially the exceptionally rigid fiberglass cone generates maximum sound pressure without distortions.

The BMW-specific baskets and connectors allow 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. With their 1 x 2 Ohms single voice coil the UP W8BMW-S are the perfect replacement for the original subwoofers of the BMW HiFi sound system. Additionally they are the perfect playmate for our MATCH Upgrade amplifier MATCH UP 7BMW and MATCH UP 7DSP.

No matter if these subwoofers are used for a bass upgrade in your BMW or as supplier of low-frequencies in universal concepts, they will definitely add loads of powerful bass for musical enjoyment.

Features

• 2 x 8” BMW upgrade subwoofer
• Fits perfectly into the original mounting positions under the front seats of all BMW model ranges with under-seat subwoofers
• Extremely stiff fiberglass cone for maximum sound pressure
• 1 x 2 Ohms impedance per woofer
• Oversized 42.5 mm / 1.7” voice coil for high power handling
• BMW connection cables for original BMW cable harness are included in delivery
• Perfectly combinable with the MATCH UPGRADE amplifiers MATCH UP 7BMW and UP 7DSP
• Also ideal for universal use in ultra-flat subwoofer constructions

Technical data

Power RMS / max. P 200 / 400 Watts

Impedance  Z 1 x 2 Ω

DC resistance  Re 2.0 Ω

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*I 7.1 Tm

Efficiency 1 W / 1 m SPL 90 dB

Cone area  Sd 214 cm²

Moving mass  Mms 47.4 g

Cone material   Extremely stiff fiberglass cone

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"

     

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 subwoofer For two subwoofers

Net volume   12 L or 24 L

Port diameter ø 60 mm / 2.36" or 80 mm / 3.15

Port area   28 cm² or 50 cm²

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

Port tuning frequency Fb 46 Hz or 46 Hz

Lower limiting frequency (-3dB)   45 Hz 45 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 UP W8BMW-S
• 2 x BMW connection cable
• 1 x Mounting material
• 1 x Instruction manual

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.