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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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    Lifetime Tech Support


    Lifetime Tech Support

    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
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    What's on your mind?

    Mark • 12/17/2019, 2:17:43 PM So I went ahead and got the AMP200 as recommended here and will be hooking it up to six speakers in the following configuration - 2 pair of Polk OWM3s on Channel A with each pair being controlled by its own volume controller; 2 outdoor Yamahas on Channel B with their own volume controller. The two pair of Polks are in two different rooms, each with their own set of volume controls. Not to get too detailed, but so I'm sure I'm understood: Channel A Right will lead to a volume controller that will control two 8 ohm speakers. Channel A Left will lead to a volume controller that will control two 8 ohm speakers. I was told here that this amp could handle that. What I am wondering is what settings do I need to use on the amp and the controllers in order to achieve the best results? Cheers.
    Customer Service • 12/17/2019, 2:17:43 PM
    Mark, Thank you for asking. You will actually be running the left and right from the Speaker A zone on the AMP200 to both volume controls. You need a left and right signal going to each volume control to get stereo. So in total you will have one 4-conductor wire from each volume control going back to the Speaker A output on the AMP200. Turn the Master Level dials on the back of the amp to about the 3 o'clock position. Set it to Stereo mode, not bridged, and set the delay accordingly. -BM 2085
    stephen • 12/17/2019, 2:17:43 PM Have a question, if i am using this on 4 speakers do i need to have two speaker volume controls or i can i do it on one . right now the set up is i am using the b channel on my amplifier and going to your speaker selector switch then out to my 4 speakers . was putting the volume controll after the selector switch which is how i need to do it . any hepl will be appreciated .
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Stephen, First, I would just like to mention that a lot of receivers aren't built to power multiple sets of speakers off the B zone. Typically they are intended to have a single pair of speakers running at 8ohms. Anything more can affect the receiver and or speakers over time. Many of these receivers will specifically warn against it in the owner's manual. They may mention speaker selectors too. That being said, you can run 4 speakers off a volume control (in parallel), but it would be best to run that with the SVC300, not the 100. Thanks. -BM 2205
    Mike • 12/17/2019, 2:17:43 PM Can this Volume Control wired into a single speaker? I want it to be in stereo. Thanks,
    Customer Service • 12/17/2019, 2:17:43 PM
    Mike, You can't get stereo sound out of a single tweeter speaker. You will either need a dual-tweeter speaker or you would need to run two speakers. Call for details. Thanks. -BM 2215
    Graeme • 12/17/2019, 2:17:43 PM I am totally confused about the impedance settings!! I have purchased 3 of these VC's and 3 dual voice coil ICE800TTWRS Stereo speakers. I will be running all 3 from my Zone 2 connections from a Yamaha RX-V673 amp. a) Can I just connect all 3 straight to my amp? b) What Impedance setting should my VC's be set on? The stereo speakers have an 8Ohm Impedance, but is that per coil or per speaker?? Thanks in advance for any help. I don't want to blow my amp up!!
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Graeme, Thanks for asking! First of all, I would advise against running all 3 of these speakers off the Zone 2 of your receiver, as that zone is probably only intended to run 1 pair of 8ohm speakers, which in your case would mean on dual tweeter speaker (contact Yamaha to confirm). What you need is an external amp that will be dedicated to these dual voice coil speakers. Check out the AMP200. As for the volume controls; you want to set each according to how many pairs or dvc speaker you are running. In your case each should be set at 4x, because you should round up. Let us know if this helps. If you have any further questions, please let us know. Thanks! -BM 2260
    xavier • 12/17/2019, 2:17:43 PM mine is that i have to a 1200 watts amp with two out puts wich i need to use one for the left and one for right. important to say its a church. i have a pasive speaker in a little room in the back for kids and there mothers. i have to take one cable from one of the channels of the amp and take it to that specific room. but it will have the same volume as the big room so i need a volume control. will this fix my problem so i can put a lower volume in that room without touching the main volume on the amp?
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Xavier To help you out with your situation, we need to know a few more things about your amp. Is it 8 ohms? 70v? Does each channel outputs 600 watts? The SVC100 can only handle up to 100 watts.