These full range 6x9 car audio speakers are 270 watts maximum and 90 watts RMS. The glass kevlar reinforced cone, is accurate and lightweight, providing high volume with low power. The 4-way coaxial 6x9 inch speakers are 86db efficient, they will come to life with the power from your vehicles radio. Use these speakers in your vehicle door or parcel tray, the rugged construction is meant for your vehicles environment. Perfect for many model Trucks. Great for UTV/ATV, bikes/motorcycles, golf cart.