OSD Audio's SVC volume controls are impedance-matching volume controls that let you adjust the volume of a pair of speakers independently of other speakers within a whole-house audio system. Ideal for areas such dining or conference rooms where you may want softer volumes or for saunas or garages where you may want higher volumes, the SVC Volume Controls maintain the full hi-fi audio frequency response with no low-frequency roll-off. 

OSD Audio’s VMS Volume Controls are impedance-matching volume controls for adjusting the volume of a pair of speakers within a whole-house audio system. Ideal for dining rooms, saunas, porches, or other areas of the house where you want to add sound, the VMS Volume Controls maintain the full hi-fi audio frequency response with no low-frequency roll-off and is equipped with the same features of volume controls that cost twice as much. Rated between 100-300 Watts peak, the volume controls include adjustable jumpers to add up to eight pairs of 8-ohm speakers simultaneously, and the impedance-matching feature helps stabilize the ohm load going back to the amp or receiver to avoid overheating.

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