You will definitely want to set your receiver to the 6-ohm setting. Impedance in a speaker varies widely with frequency so rated impedances are nominal. The VP150 is a very easy load for the amplifier because of where and how long the impedance curve dips below 6 ohms. Normally these impedance switches in amplifiers will make the amplifier see the 4-ohm load as a 6-ohm load. I would guess that setting the receiver to the 4 ohm position would only result in needing to turn the volume up higher to achieve the same output.

Ian Colquhoun
President & Chief Engineer


Ian Colquhoun
President & Chief Engineer