JBL LS326W Two-Way In-Wall Loudspeaker, White, 6.5" Frequency Range (-6dB): 30Hz - 30kHz Recommended Amplifier Power Range:10 - 135 Watts Sensitivity (2.83V @ 1 meter): 89dB Nominal Impedance: 8 Ohms Crossover Frequency: 3,000 Hz; 24 dB/Octave