The Quadral Ipso Mk IV is a bookshelf speaker that is designed to deliver high-quality sound in a compact size. It features a 2-way bass reflex design with a rear-facing port, a 1-inch tweeter, and a 6.5-inch woofer. The speaker has a frequency response of 42Hz - 32kHz and a power handling of 130 watts. It is suitable for use in stereo or home theater setups.