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    OSD OVC300300W Rotary Outdoor Volume Control, Impedance Matching and Weather Resistant, White or Grey

    Purchase 300W Rotary Outdoor Volume Control, Impedance Matching and Weather Resistant, White or Grey, OVC300
    • Outdoor Speaker Depot SKU: OSD-OVC300-PAR outdoor-volume-control
    • $39.99

      Compare at: $54.98
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    Unique easy-access impedance matching jumper setting without open the weatherproof seal box. If you enjoy an outdoor audio system, you'll love the convenience of outdoor volume controls! Now you can stop dragging the remote control outside where it is sure to get lost, or avoid having to get up and go to your audio source to turn the volume up or down. This pure resonance volume control offers 300 Watts of optimized sound quality with minimal bass roll-off. Control 1-8 pairs of speakers simultaneously with impedance matching. The autoformer design features outstanding sound quality due to high permeability steel utilization in the volume control core. Comes with Grey or white face plate. In addition, the OVC-300 includes an easy access impedance switch that lets you set the impedance without opening the box.

    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: Outdoor 300W Impedance Matching Knob Style
    • Power Handling: 300W Peak; 150W RMS Per Channel
    • Frequency Response: 20Hz - 20kHz
    • Total Attenuation: -54 dB (Max)
    • Steps: 12 (Make Before Break)
    • Impedance Matching for 1/2, 4, 6, or 8 Pairs of Speakers
    • Easy-Access Impedance-Matching Switch
    • Wiring Requirement: Up to 14 Gauge Wire
    • Weather-Resistant for Outdoor Use
    • Can Withstand -50F / +130F Degree Weather
    • Mounting Options: Use 3/4" PVC Conduit Pipe to Stand Alone or Mount to the Wall
    • Unit Dimensions: (L x H x D) 3.25" x 4.37" x 3"
    • Colors Available: Grey or White
    • Warranty: 5 Years
    65 Questions asked
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    What's on your mind?

    Dave • 12/17/2019, 2:17:43 PM I have a Pioneer Elite SC-27 which allows me to have a second zone and directly power a pair of speakers within it. The volume in Zone 2 is controlled from the AVR, i.e. an additional amp is not required. The Zone 2 speakers will be in my back yard and, ideally, I'd have two pair. This setup seems simple enough--I'd set the volume at the AVR and use an impedance-matching volume control to connect the speakers and control the volume (topping out at the level set on the AVR). However, I'd also like to be able to enable/disable the speakers independently (Pair 1 only, Pair 2 only, or both Pair 1 and Pair 2). Is this possible using an A/B/AB switch? Obviously I don't want to be changing the jumpers each time I turn off/on a set of speakers, but I also want to control the volume from one OVC, not two.
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Dave, An A/B switch would allow you to play either A or B, not both. We have A/B switches for Indoors only, although you could use a weatherproof box found in the volume control accessories section. We have speaker selectors like the SSVC4- but like you said you are working with an output meant for one pair- so you should only do one pair or get an AMP200 to do two. CL 2037
    Ed • 12/17/2019, 2:17:43 PM I don't understand how the connections occur since the volume controls look like they have wires already attached. How do you connect the system to these wires? do you have to have a junction box nearby the volume control to connect to the wires that come with the volume control or can you take those out and wire the speaker and amplifier wires directly to the volume control?
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Ed: You have to terminate the input and output wires to the leads coming out of the bottom of the weatherproof box. The four input wires left and right (+/-) are connected to the speaker wires coming either from the Amplifier/Receiver or even speaker selector. The output wires will be terminated to the speaker wires going to the actual speakers, again two conductors for the right (+/-) and two conductors for the left (+/-). OSD offers both a four Conductor (in a single jacket) and two conductor in a single jacket. The four conductor is ideal for connecting the Amplifier to the Volume control then use the two conductor to go out to the speakers. All our speaker wire is CL3/FT4 Rated (for in-wall or in-ceiling) and approved for direct burial. If you are mounting the OVC300 on a 3/4" PVC pipe you will need to use Butt Splices which are available at any electrical store or do it yourself hardware. Do not use electrical tape. Look for a butt splice for 16 gauge conductors to match the connecting wires from the OVC300. There are also other terminal caps you can use checkout our Aqua Blue direct Burial connectors as another alternative. TL-2105
    Bob • 12/17/2019, 2:17:43 PM I have a new Yamaha RX-V375 receiver that powers my surround system indoors. It doesn't have A & B switches to add a second set of speakers - say outdoor speakers, just the one set of connectors. I hooked up outdoor speaker wires to "share" the front speakers and ran those to my OVC100, but hear next to nothing from outdoor speakers. Is there a solution to listening to outdoor speakers along with my indoor speakers without having a speaker selector switch on my new A/V receiver?
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Bob, Your receiver is meant to drive as many speakers as it has outputs for. Consider getting an amp or receiver to drive your extra pairs if your surround sound does not have adequate power. Consider our AMP200 for multiple pairs or for just one pair the AMP120. We also have receivers that would give you about 100 watts per channel for the same price like our Rx 4105 made by Sherwood. When you try to double up on outputs- it puts a strain on your receiver as well as divides the power and is not recommended. A speaker selector would divide the power as well and is a better 'connection' than doubling up wire, but really is meant for a high current amp (not receiver) that drives multiple rooms. A high current amp like our amp200 can handle heavier loads- 4 ohms and even down to 2 ohms. With a high current amp- doubling up is no problem as that creates a 4 ohm load. Your receiver is meant to be at 8ohms only. The speaker selectors divide the power and give you control but are completely passive and do not amplify at all. CL 2148
    Rome • 12/17/2019, 2:17:43 PM I am getting a new AVR with Zone-2 capabilities which will be assigned to surround-back outputs(100wx2) of the AVR to power 1 pair of AP490's. In between the SB output and the AP490, I will be using the OSD-OVC300. Will I need to configure the OSD-VC or will it configure automatically? If not, what is the ideal setting? REASON: I had an identical setup with my previous receiver (different VC) and ended up eventually frying my AV receiver which had A/B speaker output. With that configuration it would play max volume by bypassing the VC, but when I put the VC back. It caused by AVR to go into protection mode. I had to monitor the level I would set the VC to prevent it from activating the protection mode, but recently I guess the protection mode failed to kick-in and my old AVR fried.
    Customer Service • 12/17/2019, 2:17:43 PM
    HI Rome: The OVC-300 needs to be set to 1/2x which it may already be set at out of the box. The switch is located inside the 3/4" opening on the bottom of the weather proof box. Based upon what you are describing you were using the second zone output from your front stage speakers where there was no second zone output. Typically I would have not have recommended loading that output with a volume control. You should not have the problem with the dedicated zone 2 output as long as you just are driving a single pair of speakers. TS-2162
    Mark • 12/17/2019, 2:17:43 PM I tried using this for two Klipsch AW-650 speakers connected to Zone 2 output on a Yamaha RX-A830 receiver. I was unimpressed with fact that this unit uses what appears to be 18 gauge wire. I am using 14 gauge outdoor speaker wire because one run is about 60 feet. Worst problem is that this control heats up (you can smell it) and the speaker sound is distorted. I do not have the speaker distortion problem when speakers are connected without this control. Impedance is set to 1/2x since I only have one pair of speakers connected to zone 2. I have disconnected this control. Unless there is a simple solution, this is junk ( not to mention the light gauge wire used by the control)
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Mark, Sorry for the delay. From my understanding, our volume controls should be able to fit 14 gauge with no need to shave down the wire. I'm aware that 12 gauge is too thick, but I've never had problems with 14 gauge. Also, usually any runs under 80ft are okay to use 16 gauge with, just in case that's an option for you. Are the AW-650 speakers rated at 8ohms? Call me if that's better for you. 562-697-2600. Thanks! -BM 2365