Package Included

• Focal INSIDE ISBMW100K 4" 2 Way Component Speaker System
• Stinger RKXSK Expert Sound Proofing Deadening Material 2 Sheet Speaker Kit

2-Way Component Kit

IS BMW 100K is a 2-way component kit designed for BMW drivers looking to upgrade their factory audio system with a high-fidelity solution tailored to their vehicle. It features Focal’s iconic K2 Sandwich cone, which offers an ideal balance of weight, rigidity, and damping — delivering powerful, dynamic sound reproduction. The kit also includes TKM inverted dome “M” tweeters, capable of reproducing high frequencies up to 22 kHz, ensuring exceptional precision and smoothness in the treble range. A premium solution for an immersive and detailed in-car listening experience.

Key Points

• Developed and manufactured in France
• Do it yourself quick installation
• Seamless integration into the cabin
• High quality soundstage
• Dedicated manufacturer connector
• Installation video tutorial (available)

Specifications

• Type 2-way component kit
• Woofer 4” (100mm)
• Depth 1 5/8” (41mm)
• Magnet Neodymium
• Cone Sandwich K2 cone
• Tweeter TKM (‘M’ profile aramid fibre
• inverted dome tweeter)
• Nominal impedance 4 Ω
• Maximum power 120 W
• Nominal power 60 W RMS
• Sensitivity (2.83 V/1 m) 83,5 dB
• Frequency response 80 Hz - 22 kHz
• Crossover Separate

Design 

• Depth behind surface (Mounting depth) : 41 mm / 1.6 in

Stinger RKXSK Expert Sound Proofing Deadening Material 2 Sheet Speaker Kit

• Expert level sound dampening
• Aluminum outer layer
• Self adhesive
• Easy installation
• Use on all metal panels, doors, roof, floor, firewall & trunk
• Kills panel resonance, squeaks and rattles
• Highest damping vs. weight ratio of any material available
• Improves overall audio frequency response and bass output
• Speaker kit

Expert RoadKill Published Specifications

• Minimum Thickness 0.080in
• Minimum Weight 0.65bs/ft2
• Aluminum Layer- 6 mils

Note: This item/pack is sold as a pair and contains 2 speakers and 2 tweeters