Paradigm Studio 100 are the flagship model of Paradigm's Studio lineup of high-end speakers. At $2200 / pair, they are expensive, but offer considerable savings over comparable quality speakers. They feature a 5-driver, 3-way crossover design with 1 tweeter, 1 dedicated mid-range driver, and 3 bass drivers. They are able to reproduce fairly deep bass down to 28 Hz (3dB cutoff), so a dedicated sub-woofer is not necessary. They have a stated in-room sensitivity of 91 dB, and are suitable for an amp/receiver rated between 15 - 350 Watts. As for impedance, according to Paradigm they are "compatible with 8 ohms", but the actual impedance may vary, and is speculated to be lower than that.