This video explains how speaker impedance matters, especially when connecting multiple speakers to your HiFi amp. It also demonstrates how speaker selector switches protect your amp from low impedance. For more details on this and more articles on connecting multiple speakers, please see my website: http://geoffthegreygeek.com/category/home-av/connecting-speakers/ Questions are generally answered from the webpage only.
Can you use an 8 ohm woofer with a 4 ohm tweeter? Do they need to match? What is the final impedance of my speaker build? All of these questions are answered in this quick video.