Klipsch Forte Iv Speaker Pair - 38Hz – 20kHz - 99dB 2.83V / 1m - 100W / 400W - 116dB Continuous - 8 ohms Compatible - Hf: 5.2kHz / Mf: 650Hz - K-100-ti 1” (2.54cm) Titanium diaphragm compression driver on a K-79T horn - K-702 1.75” (4.45cm) Polyimide Compression Driver mated to a K-703-m horn - K-281 12” (30.48cm) Fiber-composite cone woofer, Kd-15 15” (38.1cm) Passive cone radiator - 3/4” Mdf - Dual binding posts / bi-wire / bi-amp - (35.75" H x 16.63" W x 13" D) - (Red Oak)