HARMAN KARDON FIT 4SF - Fit Series 4" Component Car Midrange Speakers for Mercedes (Plug & Play)

Pure Aftermarket 4inch Plug and Play Midrange Speakers For Mercedes Benz by Harman Kardon

The Fit 4SF is a dedicated midrange-only driver, part of Harman Kardon’s advanced Fit Speaker Series unveiled at CES 2025. Engineered to deliver crystal-clear vocals and instrumentation, it sits at the heart of premium three-way audio upgrades, and is explicitly designed for Mercedes‑Benz vehicles equipped with Harman Kardon systems—offered as part of benz-specific component bundles.

True Midrange Design

Built exclusively for the 200 Hz–8 kHz range to provide focused, distortion-free reproduction of critical mid-tones—ideal for dialogue, vocals, and instruments.

Plus One™ Glass-Fiber Cone

Employs Harman's patented Plus One™ technology for a larger diaphragm surface and lighter structure, enhancing sensitivity and clarity in the midband.

OEM Integration for Benz

Featured in Mercedes-specific packages (e.g., Fit 6C + Fit 4SF), indicating precise depth and mounting compatibility for factory 4″ midrange positions

The Fit 4SF is specifically designed to fit and function seamlessly in Mercedes-Benz models equipped with factory Harman Kardon or midrange speaker positions. It is featured in Benz-specific upgrade kits (e.g., Fit 6C + 4SF bundles), ensuring a direct OEM-level replacement.

OEM Drop-In Fit: Matches Mercedes-Benz factory 4″ speaker locations—typically found in front doors, rear doors, or dash.

Impedance Match: 4-ohm design is compatible with factory amplifiers and OEM wiring—no coding or rewiring needed.

Crossover Integration: Works in two-way or three-way systems via included or optional slim-fit passive crossovers.

Plug-and-Play Upgrade: Designed to work with Mercedes-Benz factory mounting brackets and interior panels without modification.

Tested fitments include:

C-Class (W205)

E-Class (W213)

GLC, GLE, and S-Class models with HK audio

Other Benz models with midrange dashboard/door speakers

Specification:

Speaker Type : Midrange-Only (No Grille)

Size : 4″ (100 mm)

Power Handling (RMS) : 45 W

Peak Power Handling : 360 W

Frequency Response : 200 Hz – 8 kHz

Sensitivity (@2.83 V) : 90 dB

Impedance : 4 Ω

Cone Material : Plus One™ Glass Fiber

Crossover Support : Yes – External (included in other sets)