I currently have 4 two in black two in brown. $57 piece Now, you can get superb musical and home theater performance with the Polk Audio RT25I speaker. The Dynamic Balance technology in the 5-1/4-inch woofer of this Polk Audio bookshelf speaker gives you deep bass with reduced resonances and low distortion. The aluminum tweeter of this Polk Audio 2-way speaker provides you with clean and smooth high-level sound. The Anti-diffraction bezel along with grille system of this Polk Audio bookshelf speaker gives you large and lifelike imaging by reducing grille-edge reflections. The Polk Audio RT25I speaker has an Acoustic Resonance Control technology that delivers superior quality midrange reproduction. The nominal impedance of 8 ohms and 4 ohms (minimum) in this Polk Audio 2-way speaker gives you loud and life-like sound even with a low power receive