Many low impedance speakers (1 - 3 ohms) are in the panel family (ribbons and electrostatics). Apogee, Martin-Logan, Quad, and Maggies are probably the most well known. Unlike dynamic drivers (cones and domes), ribbons and panels are low impedance by the nature of their design. Just adding resistance to get the impedance higher degrades the sound quality and dissipates your amp’s power as heat. Using a high quality, high current amplifier is needed to control these drivers and produce the best possible sound.
