The RSN-VC is a wall-mounted, Standard style, speaker-level volume control. It connects between the speaker outputs of an amplifier or receiver and a pair of speakers. The 1x setting allows the volume control to be used as a standard non-impedance matching control. The 2x, 4x, and 8x settings allow it to be used as an UltraMatch control. The UltraMatch volume control provides a method of matching the minimum output impedance of an amplifier or receiver, in addition to attenuating the volume. This eliminates the need for a speaker selector or other impedance matching equipment. The volume is adjusted by adjusting the amplifier signal output of the volume control to the speakers.