SKU: SVC-300-PAR
OSD SVC 300In Wall 300W Knob Volume Control, Speaker Impedance Matching (White, Black, Brown) Decora Style
OSD Audio's SVC300 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 SVC300 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 SVC300 is rated at 300 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 SVC300 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.
Features:
- Decora style impedance-matching volume control for whole house audio systems and dedicated audio zones
- Rated at 150 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 SVC300 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
Warning:
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 www.P65Warnings.ca.gov.
- Volume Control Type: 300W Impedance Matching Rotary Knob Style
- Power Handling: 300W Peak; 150W 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
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36 Questions asked
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What's on your mind?
John • 12/17/2019, 2:17:43 PM
Can I use this volume control 'downstream' from an OSD SSVC4 speaker selector/volume control box? In other words, use this as a second volume control in one of my zones without causing impedance or other issues? My patio zone is a couple rooms away from the SSVC4 box. I'd like to put in a wall switch just inside the door to make volume adjustment less of a chore. Doable or would you have another solution? Thanks!
Customer Service • 12/17/2019, 2:17:43 PM
Hi John,
You will not be able to use a volume control with the SSVC4. You’ll need a speaker selector, like the ISS4 or the DSM4, to have the volume control in the zone.
CL/MA 2002
Brad • 12/17/2019, 2:17:43 PM
I have Marantz SR 5008 high current receiver. I'm running individual pair of 8 ohm speakers off each individual circuit (Front, surround, surround back) . I want to add a volume control to each pair of speakers so i can control individually, one pair of speaker per amp circuit per volume control. I'm trying to decide whats better for my application, transformer or resister style volume control. I tend to like to crank it up at times to listen to music.
Customer Service • 12/17/2019, 2:17:43 PM
Brad,
If each of the channel off the receiver are on an independent load, then you can use resistor based. If they are all on the same load, you would want to use impedance matching volume controls. It also depends on how many watts each channel is outputting. Some of our controls only handle 100 watts max, and some handle up to 300 watts max.
Indoor impedance matching:
SVC100, VMS100, SVC100, and SVC300
Outdoor impedance matching
OVC100 and OVC300
Indoor resistor based:
VKR120
Outdoor resistor based:
OVC305R
When using impedance matching volume controls, you want to set each volume control's impedance switch according to how many pairs of speakers are running off the receiver. 1/2x, 4x or 8x.
-BM
2079
Matt • 12/17/2019, 2:17:43 PM
Can I wire 3 pair of speakers in parallel to this switch? Is there a limit?
Customer Service • 12/17/2019, 2:17:43 PM
Matt,
Yes, each of our 300 watt impedance matching volume controls can handle a maximum of 6 speakers (3 pair). You just want to make sure you're not pushing more than 300 watts through it.
-BM
2083
John Arthur • 12/17/2019, 2:17:43 PM
CAN i USE THIS VOLUME CONTROL FOR CHURCH PA SYSTEM OF 400 WATTS pvsi 6500?
Thanks.
John
Customer Service • 12/17/2019, 2:17:43 PM
Hi John,
This volume control can only handle 300 watts max, so I wouldn't use with that amplifier, unless you are certain that less than 300 watts would be outputting from the amp. Call us if you have further questions. Thanks!
-BM
Derek • 12/17/2019, 2:17:43 PM
I bought the SVC300 and have it hooked up to two of your 8 ohm outdoor speakers on channel B on my Yamaha receiver. I have 8 ohm Klipsch stereo speakers hooked up inside to channel A of my Yamaha receiver as well. The problem I have is that the outdoor speakers are much quieter than my indoor speakers even at full volume when I select A+B and I can't adjust volume levels between A and B independently through my receiver. Any suggestions?
Customer Service • 12/17/2019, 2:17:43 PM
Hi Derek,
Thanks for contacting us. It could be a number of things. One possibility, however unlikely, is that the wire running to the outdoor speakers is a longer run than the indoor speakers, thus giving you less quality/volume to the outdoor pair. Another reason could be the size/efficiency of the outdoor speakers being different than the indoor speakers, causing the volume to be lower. So if the indoor speakers have a higher db rating, say 90-92db, and the outdoor speakers have a lower rating such as 88-89db, than the amp has to work harder to power the outdoor speakers than it does to run the indoor speakers. Have you tried bypassing the volume control to the outdoor speakers to see if that changes anything? Let us know. Thanks!
-BM
2338