Xantech XVCD100 100W Impedance Matching Volume Control, Decorator-style Insert Rotary Knob
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Xantech XVCD100 100W Impedance Matching Volume Control, Decorator-style Insert Rotary Knob

Control the Volume of your Home's Stereo Speakers with a Wall-Mounted Controller

Item #: 81295

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Special Price: $44.00

List Price: $88.00

Your Savings: $44.00

  • Details
  • Specs
  • Reviews
  • What's Included
  • Normally, most amplifiers can easily drive between four and 16 ohms of speakers. With each speaker added to an amplifier, the impedance level drops by half. If you hook two 8-ohm speakers up to an amplifier in parallel, the amplifier actually sees an equivalent resistance of 4-ohms. Hooking three pairs to one amplifier, the equivalent impedance is 2.6 ohms, which is too low for most amplifiers to operate properly. For the engineers in the crowd, the most commonly used formula in the speaker industry is 1/R(total) = 1/R1 + 1/R2 + 1/R3 + etc. (R is the resistance of a speaker).

    When this Impedance Matching Volume control is used between a set of speakers and an amplifier, the volume control can present a higher impedance level for the amplifier to see. Once all the higher impedance volume controls are added up, you're back to a safe level for your amplifier.

    Use this volume control in parallel with up to 16 pairs of speakers. You can set the unit to provide an impedance load of 16, 32, 64 ohms, etc. At 16 ohms you can wire 2 pairs of speakers in parallel and still have an 8-ohm load for your amplifier. At 64 ohms you can wire 8 pairs of speakers and provide a 4-ohm load and so on. A jumper on the volume control allows easy setting of the volume control's impedance level.

    The volume control has a frequency response of 20 - 20,000Hz response and supports up to 100 Watts RMS per channel. The volume control has 12 volume steps and the last position is a mechanical off so no sound will come from your speakers when the volume control is turned off. It accepts up to 14-gauge wire and includes a trim plate.

  • Specifications

    Manufacturer Product No.:XVCD100
    Power Handling:100 Watts continuous
    Impedance Matching:Adjustable for up to 8 speaker pairs (1, 2, 4, 8 pairs)
    Attenuation:11 steps plus Off; max 42 dB
    Frequency Response:20Hz-20kHz +/-1 dB
    Speaker Terminals:14 gauge, Quick Connect (detachable)
    Mounting:Minimum 20 cu. in. J-box or Mud Ring
    Speaker Compatibility:4-, 6-, or 8-ohm speaker systems
    Certifications:UL Listed

  • 6 Reviews

    Review of 81295 Review by COLIN
    Review of 81295

    Works very well. Only complaint could be it's very deep. I used an old work box, and had to clip some of the back out, as this switch was too deep to fit in. It's very heavy, that's why i wanted a full box, rather than just a low voltage ring.

    Posted on 6/12/2013

    Review of 81295 Review by SCOTT
    Review of 81295

    Actually still to install but had to submit a review as part of review of overall order, but am not expecting any issues as have other kit from this manufacturer and never had any issues.

    Posted on 2/24/2013

    Review of 81295 Review by SARAH
    Review of 81295

    These do not come with wall cover plates!! Big inconvenience!! Who would have thought that the plates didn't come with!

    Posted on 8/19/2012

    Review of 81295 Review by new
    Review of 81295

    These volume control knobs work fine but beware, there are NO FACE PLATES included. We have had a heck of a time trying to find matching face plates now.

    Posted on 8/6/2012

    Review of 81295 Review by ROBERT
    Review of 81295

    Great Price for a simple product...a no brainer.

    Posted on 6/22/2012

    Review of 81295 Review by CHARLES
    Review of 81295

    not as well made as unit I was replacing. cheap terminals. one broke before I completed installation

    Posted on 7/18/2010

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  • 1x - Volume Controller
  • 1x - White, Ivory, Almond, and Black Decorator-Style Inserts and Volume Knobs
  • 1x - Owner's Manual
Norton McAfee
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