Electronic – Powering two 8-Ohm speakers in parallel with a 4-Ohm per channel audio amplifier

audioimpedanceparallel

Are there any possible problems powering two 8-Ohm speakers in parallel with an audio amplifier designed to drive 4-Ohm per channel? (Both the speakers and amplifier are generic, and the speakers are identical). The amplifier's power rating is greater than the sum of the speakers, and would not be pushed beyond the combined power rating of the speakers. I can't think of any reason for there to be any drop in audio quality, or for there to be any other issues, but I just wanted to do a sanity check by asking.

Thanks

Best Answer

Parallelling identical 8 Ohm speakers to get a 4 Ohm load (and the opposite: putting 4 Ohms speakers in series to get an 8 Ohm load) is normal practice.

"The amplifier's power rating is greater than the sum of the speakers" - That can get problematic: at full power the speakers might be damaged. You want the speakers (combined) rated power to be at least the maximum power produced by the amplifier.