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    SKU: SVC-100-PAR

    OSD SVC 100In Wall 100W Knob Volume Control, Speaker Impedance Matching (White, Black, Brown) Decora Style

    Purchase OSD In Wall 100W Knob Volume Control, Speaker Impedance Matching White, Black, Brown Decora Style
    • Outdoor Speaker Depot SKU: SVC-100-PAR vmimmavocow
    • $24.99

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    OSD Audio's SVC100 is an impedance-matching volume control that lets 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 SVC100 maintains the full hi-fi audio frequency response with no low frequency roll-off. Equipped with the same features of volume controls that cost twice as much, the SVC100 is rated at 100 Watts peak and includes adjustable jumpers to add up to eight pairs of 8-ohm speakers simultaneously. The impedance-matching feature helps stabilize the ohm load going back to the amp or receiver to avoid overheating and damaging expensive equipment. A complete volume control kit that fits into a standard single-gang box, the SVC100 also includes the junction box, screws and assorted color trim plates (white, ivory and almond) so you can choose the color that best matches the room. This versatile whole house volume control is compatible with almost any dedicated audio zone or whole house system, and the 12-step rotary knob adjusts the volume from inaudible to loud and everything in between.

    • Decora style impedance-matching volume control for whole house audio systems and dedicated audio zones
    • Rated at 100 Watts per channel with minimal bass roll-off
    • Impedance-matching feature stabilizes the ohm load so parallel connections of multiple volume controls can be installed without damaging the amplifier
    • Front-mounted adjustable jumpers allow easy adjustment when multiple pairs of speakers are connected to a single receiver or amplifier
    • Accepts up to 14-gauge wiring and fits in a standard gang box with a depth of 2.9'Includes junction box and screws as well as white, ivory and almond trim plates to match any room d'cor
    • Precision electronics provide low distortion and a ruler flat frequency response
    • 12-step linear rotary-style knob for a wide range of listening volumes
    • Installs easily and works with almost any audio system 
    What Is Impedance Protection?
    Speakers are specified by impedance, which is a measurement of resistance to alternating current, and a common value for speakers is 8 ohms. When you're connecting multiple speakers to a receiver or amplifier, you need to stay above the amp's minimum load requirements because going below the impedance rating can overheat or even damage expensive equipment. The SVC100 allows you to match the impedance with the number of speakers being controlled with the capabilities of your amp. A basic multi-room system will typically have an amplifier/receiver, a speaker selector, four to eight pairs of speakers, and volume controls. Impedance-matching volume controls feature three settings depending on how many speakers you are connecting. For one to two pairs of 8-ohm speakers, the setting is 1/2x; for three or four pairs of 8 ohm speakers, the setting is 4X. Keep in mind that volume controls do not add gain (volume) to your speakers but simply attenuate the volume up or down. During setup, you'll set the source volume to its optimum level, then the volume control turns the sound down to inaudible levels.

    Warning: California's Proposition 65


    This product can expose you to chemicals, including vinyl chloride, which is known to the State of California to cause cancer. For more information, go to

    • Volume Control Type: 100W Impedance Matching Rotary Knob Style
    • Power Handling: 100W Peak; 50W RMS Per Channel
    • Frequency Response: 20Hz - 20kHz
    • Total Attenuation: 52 dB (Max)
    • Steps: 12 (Make Before Break)
    • Impedance Matching for 1/2, 4, 6, or 8 Pairs of Speakers
    • *Can be Used as Non-Impedance Matching if Leaving Default on Jumper Setting at 1X
    • Wiring Requirement: Up to 14 Gauge Wire
    • Removable Input and Output "Quick Connect" Phoenix Connectors
    • Fits in a Standard Single Gang Box - See LV1 for Mounting Bracket
    • Unit Dimensions: (L x H x D) 1.62" x 2.5" x 2.5"
    • What's Included: White, Ivory and Almond Plates, Inserts, Screws, and Knob
    • Additional Colors Available: Black or Brown
    • Warranty: 5 Years
    53 Questions asked
    Have a Questions?

    What's on your mind?

    Bill • 12/17/2019, 2:17:43 PM how long is the warranty on the SVC 100
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Bill, Our indoor volume controls have a 5-Year warranty. Thanks!
    Scott • 12/17/2019, 2:17:43 PM I'm going to be using my Onkio receiver to power 2 pairs of Polk Audio RC80i, one set in the master bath channel A and one pair on the back porch. I'd like to run one of these volume control on each channel, two total. I would run both volume controls at x1, correct? Thank you!!
    Customer Service • 12/17/2019, 2:17:43 PM
    Hello Scott, If you are running 2 pairs of speakers, go ahead and set both of the volume controls at 1/2x!
    Jim • 12/17/2019, 2:17:43 PM How do I test this
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Jim: You would have to connect speaker wire from the amplifier to the inputs on the SVC100 Volume Control then connect speaker wire from the SVC100 outputs to the inputs of the speakers you want to control the volume on. Make sure you turn the volume knob clockwise till it stops (fully open, actual volume from the amp). Turn your amp/receiver on and If music is playing it is connected correctly. Then start turning the knob counterclockwise slowly one click at a time. Each click should reduce the volume 3 to 6 db depending on the click until you hear no sound which depending on your volume levels on the amp may be one or two clicks before the knob stops. Now you have tested the Volume Control. Note these volume controls are antenuators, where they reduce the volume by diverting the signal into the transformers. There is no power to these volume controls they are passive devices. TL/3665
    Phil elliott • 12/17/2019, 2:17:43 PM Im about to set up an 8 zone whole home audio system using 8 pairs of ICE610 speakers. Will these volume controls work? Just curious about the wattage per channel...not sure if the speakers need to be higher watts or maybe volume controls need to be more watts per channel.
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Phil: There are other variables to consider, are you using a speaker selector and what is your power source? What are you planning for the whole system? Will this be connected to a Home Theater Receiver or a dedicated amplifier/receiver? It would help to know what the other components you have or are planning to purchase including Brand name and model numbers. Help me understand your concept, what you are trying to accomplish, what is your application. Thank you in advance TL/3797
    Ian • 12/17/2019, 2:17:43 PM I'm looking at adding something to my RV to control the different zones that it currently has. I find the speakers in the RV are to loud and the ones onutside are too quiet. It is the typical car stereo set up. 12Volt DC supply. Each speaker is controlled with its own feed. Each zone (3 in total) has two speakers each with its on feed (Left/Right). Would something like this work? Thanks.
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Tan: In order to answer your question, would nee additional info. First are we talking about three zones with two pairs each per zone? Did you wire the two pairs per zone in Parallel (Parallel doubles output, series cuts it in half). Will need to know which speakers you are using, Brand and model number (a 4 ohm speaker will play louder than a 8 ohm speaker).What we will be able to tell from the specs of the speaker is the sensitivity of the speaker. Typically sensitivity is measured in decibels usually between 86 and 92 dB. The higher the number (say 91 dB) the more efficient the speaker and will play louder than a speaker rated at 88dB (3dB is doubling your power) Lastly you need to understand the speakers in the RV are in an enclosed space and will play louder than the speaker outside since it is trying to fill a much larger area. The single volume control will not help you in this application... TL/4465