2'' inch Tweeter Speaker max Power 80w Upto 20khz Pack of 2 INSTALLATION 1.0ne 63v non polarized capacitor must be connected in lion depending on the size of the woofer the following sizes Capacitor may be used : 4.7mfg 3.3mfg 2.2mfg and 1 mfg (ahigher value capacitor will make the bass sound better 2. To adjust the sensitivity of the tweeter and resistor with an appropriate power value may be connected in series with the capacitor. for system rate higher than 100 watt power, a resistor> 15 ohms/ 20w is necessary 3. though rated at 8 ohms, this speaker is also suitable with 4 adn 16 ohms system