Niles WVC100K

Weatherproof stereo volume control with impedance magnification

Item #: 190WVC100K

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4 Reviews



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When you install a separate volume control for your outdoor speakers, you won't have to run indoors every time you want to change the level of your music. The weatherproof WVC100K boasts a rugged, corrosion-resistant design that's built to withstand the elements season after season.

This in-wall control also offers impedance matching, which means you can safely make it a part of a multi-room speaker system incorporating up to 6 pairs of speakers. You won't have to install a speaker selector or any other type of protection device.

Product Highlights:

  • power handling: 100 watts per channel
  • 12-step control, 48 dB maximum attenuation
  • selectable impedance magnification (2X, 4X, and 8X)
  • pop-free switching between all steps
  • includes knob, faceplate, stainless steel hardware, and wall gasket
  • removable screwless connectors accommodate up to 16-gauge wire
  • requires single-gang electrical box
  • 1-1/2"W x 4"H x 3-5/8"D
  • warranty: 10 years
  • Our 60-day money-back guarantee

Niles WVC100K Reviews

Average Customer Review:

4 reviews
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Nice Product

Written By Rob M, Florida on Friday, October 16, 2015

Crutchfield Customer Review (What's this?)

Works great. Good value

Pros: Works well. Different cover plate options with matching screws.

Cons: A little longer screws for stucco walls would help.

Niles WVC100K

Written By Ed B, North Carolina on Wednesday, July 01, 2015

Crutchfield Customer Review (What's this?)

If one is using wired technology, this is a necessary component since it allows volume to be controlled at the point of listening.

Pros: Easy to install and it works.

Cons: None.

Volume control

Written By Niles WBC 100k, White plains ny on Tuesday, September 16, 2014

Crutchfield Customer Review (What's this?)

Works well

Pros: Weather proof

Cons: Kobe Clicks as you turn up or down. I would like it to be smooth

Best looking outdoor controls

Written By Aaron, Felton, PA on Monday, May 06, 2013

Crutchfield Customer Review (What's this?)

Great volume control. Impedance matching makes installing multiple sets of outdoor speakers easy. Nice looking knobs and plates versus the standard grey PVC controls. Make sure you use a deep single gang box to accommodate the wire and control.

Pros: Looks good, Impedance controls,

Cons: Needs a lot of space in the box, will not accept 14 gauge only 16 gauge or less

Hands-on research

What's in the box?

Download owner's manual

  • WVC100K rotary volume control
  • 4 Decora wall plates (white/light almond/bone/black)
  • 4 Decora inserts (white/light almond/bone/black)
  • 4 Knobs (white/light almond/bone/black)
  • 1 Rubber gasket
  • 2 Device screws (length=1")
  • 8 Faceplate screws (2 per color/6 installed on wall plates)
  • Installation & Operation Guide
  • Limited Warranty Card

Product Research

Installation Considerations


Overview: The WVC100K is a waterproof stereo speaker volume control that connects between the speaker-level output of an amplifier, speaker selector, or a Niles distribution hub and a pair of speakers. Premium-quality parts and construction ensure high-fidelity sound with flat frequency response and 100 watts continuous power handling.

Four Colors: The WVC100K installs in-wall in an outside location in a standard single-gang junction box (J-box). The package includes a Decora faceplate, insert, and knob in each of four colors: white, light almond, bone, and black.

Selectable Impedance Magnifying Circuit: A universal impedance magnifying circuit enables the WVC100K to act as both stereo and an impedance magnifying volume control. You can magnify the speakers' impedance by a factor of two, four, or eight, allowing you to connect up to eight pair of speakers to a single amplifier or receiver. A sliding switch on the front on the volume control lets you set the impedance factor to 1x, 2x, 4x, or 8x.

12-Step Control: The rotary design gives 12-step control, and a total of more than 48dB maximum attenuation. The high-quality construction assures you get pop-free switching between all steps.

Autoformers: Precision autoformers provide superior sonic performance, exceeding the audio quality of non-impedance magnifying volume controls.

Removable Screwless Speaker Connectors: Two piece, screwless speaker connectors make installation quick and secure. Each connector can accept up to 16-gauge wire.

Isolated Grounds: Isolated left and right-channel grounds ensure safety with any amplifier.

Impedance Compatibility: The WVC100K can be used with 4-, 6-, or 8-ohm speaker systems.

Installation Considerations

Outdoor Wall Mount Application: The WVC100K volume control is designed for environmental wall-mount installation. It comes with a waterproof rubber gasket to protect the volume control's internal circuits from moisture.

Speaker Wire: The WVC100K will accept stranded copper wire up to 16-gauge. Larger (lower gauge) wire is not recommended, as it will not fit into the connectors. Solid-core, aluminum, or "Romex" wire is not recommended. Most states require in-wall speaker wire to have a specific "CL" fire rating.

Required Tools: To install the WVC100K, you will need a Phillips screwdriver and wire stripper.



  • Audio Power Handling: 100 watts/channel RMS; 200 watts/channel peak music power
  • Frequency Response: 20 to 20,000 Hz (+/-1.5 dB)
  • Impedance: compatible with 4-, 6-, and 8-ohm speaker systems



  • Volume Control: W=1.541", H=4.067", D=3.43"
  • Wall Plate: W=2.99", H=4.765", D=0.311" (Cutout Diameter: 0.693")

Our Product Research Team

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