Plug and Play BMW Front Door speaker upgrade
Easiest plug & play installation due to car-specific baskets and harnesses, High-end crossover with reference curve setup, System can be used as passive or semi-active system, Approved compatibility with 1 SeriesE 82/87/88/ 3 Series 90/91/92/93

Specifications
OPTISOUNDBMW4-V4 Car Specific Component
2-way, 4” (100mm)
115 watts RMS
345 watts Peak
55 watts Minimum input
Sensitivity 90dB
Frequency response 55Hz – 25kHz
Impedance 4Ω
Recommended amplifier: POWERBOX65.4

Plug and Play BMW Underseat subwoofer upgrade
Easiest plug & play installation due to car-specific baskets and harnesses, High-end crossover with reference curve setup, System can be used as passive or semi-active system, Approved compatibility with 1 SeriesE 82/87/88/ 3 Series 90/91/92/93

Specifications
OPTISOUNDBMW8-V4 Car Specific Component
1-way 8” (200mm)
115 watts RMS
345 watts Peak
55 watts minimum input
Sensitivity: 90dB
Frequency response: 55Hz – 2500Hz
Impedance: 4Ω
Recommended amplifier: POWERBOX60.4-V7

1 SHEET = 20" X 13" X 4MM THICK

As well as being a self-adhesive to ensure it sticks to the surface you are applying it on, PROMAT is malleable to work into indentations and around curves in panels.

 The product is non‐ toxic, waterproof, and does not decompose under harsh weather conditions due to anti‐corrosion and sealing properties. It is also well-suited for basic improvement in the acoustics of the car when fitting and using car audio, as well as refitting and upgrading sound insulation.

 The sheets can be installed in a wide spectrum of temperatures without the need for hearing, although, for maximum operating comfort, it is recommended to be achieved at ambient temperatures above +10oC.

For best results, the surface must be dry, clean and well degreased and using a PRO roller is suggested to adhere tightly to the entire surface of the mat, to avoid the formation of air gaps.