Audiophile grade speaker switch which allows you to switch between 2 pairs of speakers from a stereo amplifier using either high quality gold plated banana plugs or spade connectors the minimum load impedance of the switch is 4 ohm using 2 pairs of 8 ohm speakers this will allow you to have 2 pairs of speaker and switch between them whether it is speakers in a different room or different speakers for different types of music it is a very versatile piece of equipment