New Reference speakers are designed to deliver Infinity's signature sound in more vehicles. They feature edge-driven textile tweeters for smooth, clear highs and the larger models offer an adjustable tweeter output level control for high-frequency optimization based on installation location or the listener's preference. Oversized Plus One woofers offer more surface area for higher bass output and enhanced midrange performance. Plus our newly engineered baskets are optimized to fit most factory speaker locations. In The Box: 1 pair of woofers 1 pair of tweeters 1 pair of crossovers 1 pair of tweeter surface mount accessories 1 pair of tweeter flush mount accessories 1 pair of tweeter nuts 1 pair of tweeter flat washers 6 tweeter mounting screws 8 woofer mounting screws 8 crossover mounting screws 8 speed clips Foam mounting tape Owner's manual Description - 5-1/4" (130mm) component speaker system Power Handling - 65W RMS, 195W peak Sensitivity (@ 2.83V) - 93dB Frequency Response - 67Hz – 21kHz Impedance 3.0 ohms The audiophile-grade tweeters used in Infinity's new Reference speakers deliver smooth, non-fatiguing sound even at high output levels. Harman's patented (US patent #7,548,631) Plus One cones provide more overall speaker-cone area than other cones in its class — the result is higher sensitivity, increased low-frequency output and accurate music reproduction. Reference speakers provide step-up Infinity sound at mainstream prices.