Ohms are one of the specs that both speaker and receiver manufacturers use to give you an idea about their performance. Speakers and amplifiers alike are usually rated around 8 ohms, but that's ...

Ok, so i have some 25-year old Bose 501 speakers and a Pioneer VSX-D411 Receiver lying around, and was planning on using the Receiver to power the speakers. However, the Receiver is 8-Ohm min and ...

Impedance ratings are basically useless. No speaker is the same impedance at all frequencies. If one is rated at "8 ohms," that could be at 1K, 500Hz, 20K or at literally any frequency.