Fit 4F. 4" 2-Way Coaxial Speakers w/o Grille 30W RMS 4Ω The Harman/Kardon Fit 4F speakers are engineered for the ultimate in audio luxury. They offer high-resolution sound and are reinforced with fiberglass woofers with Plus One™ technology for a powerful and precise sound experience. Edge-driven textile tweeters deliver smooth and detailed high frequencies for a unique listening experience. These products are manufactured using recycled materials, ensuring stronger sound quality with minimal environmental impact. Speaker: 4" (100mm) Coaxial Car Speaker without Grille Power Handling: 30W RMS, 240W peak Sensitivity (@2.83V): 90dB Frequency Response: 70Hz – 40kHz Nominal Impedance: 4ohm *By request/order.