Fit 3Sf. 3.5" Midrange Speakers w/o Grille 45W RMS 4Ω The Harman/Kardon Fit 3SF 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: 3-1/2" (89mm) Midrange Car Speaker without Grille Power Handling: 45W RMS, 360W peak Sensitivity (@2.83V): 90dB Frequency Response: 200Hz – 8kHz Nominal Impedance: 4ohm *By request/order.