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Niles MVC100 Installation Manual

High-power muting stereo volume control
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I N S T A L L A T I O N G U I D E
HIGH-POWER MUTING STEREO VOLUME CONTROL
MVC100 MVC100R

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Summary of Contents for Niles MVC100

  • Page 1 I N S T A L L A T I O N G U I D E HIGH-POWER MUTING STEREO VOLUME CONTROL MVC100 MVC100R...

  • Page 2: Table Of Contents

    CONGRATULATIONS! Thank you for choosing MVC 100 High-Power Muting Stereo Volume Control from Niles. With proper installation and operation, you should enjoy years of trouble-free use. Niles manufactures the industry’s most complete line of custom installation components and accessories for audio/video systems. To see the complete Niles product assortment, visit us on the Internet at: www.nilesaudio.com TABLE OF CONTENTS Introduction...

  • Page 3: Introduction

    In a typical application of IM controls, a system has eight pairs of 8-ohm speakers throughout the house and in outdoor loca- tions. Connect each pair of speakers to an MVC 100/R volume control with its switch in the 8x position, eliminating the need for an external impedance-matching device to protect the amplifier.

  • Page 4: Features And Benefits

    FEATURES AND BENEFITS The MVC 100 offers a number of improvements over other volume controls: • Interchangeable Decora-style inserts for fast, easy color change. Inserts and knobs (sold separately) are available in a variety of colors. • A universal impedance-magnifying design enables the MVC 100 to act as both a stereo and an impedance mag- nifying volume control.
  • Page 5 • Ten years parts and labor warranty. NOTE: SOME SPEAKERS HAVE SELECTABLE IMPEDANCE. BEFORE YOU PROCEED, PLEASE CONFIRM THAT ANY SELECTABLE-IMPEDANCE SPEAKERS IN YOUR SYSTEM ARE PROPERLY SET FOR THE SYSTEM YOU ARE INSTALLING. NILES AUDIO CORPORATION – 1-800-BUY-HIFI (CONTINUED)

  • Page 6: Installation Considerations

    3. Read the correct switch position from the charts on page 7. See Figure 4 if your amplifier can drive a 4-ohm load. See Figure 5 if your amplifier must have an 8-ohm speaker load.

  • Page 7: Tools Required

    This translates into a drop in the maximum volume capability of about 9dB at the 8x setting. TOOLS REQUIRED • 1/8" Standard Slotted Screwdriver • 1/4" Standard Slotted Screwdriver • Wire Stripper NILES AUDIO CORPORATION – 1-800-BUY-HIFI (CONTINUED) (CONTINUED ON NEXT PAGE)
  • Page 8 INSTALLATION CONSIDERATIONS (CONTINUED) USING SPEAKER SELECTORS WITH IM VOLUME CONTROLS Although IM controls provide volume and on/off at the volume-control location, they do not give you central control of speak- ers playing throughout the house. Speaker-selection systems give you central control, but some speaker selectors have non-defeatable impedance-protection circuits.
  • Page 9 110V devices, with a low-voltage partition between the devices. We do not recommend this, because speaker wires can act as an antenna for electrical noise. Locating speaker wires too close to a light switch or dimmer may cause the speakers to emit a popping or buzzing sound.
  • Page 10 INSTALLATION CONSIDERATIONS CONVENIENT MOUNTING LOCATIONS INCLUDE: • Near doorways. • Near a desk. • At your bedside. • Close to a telephone. • Near other wall-mounted controls. DECORA FACEPLATES ® The MVC 100 is designed to use standard and Decora-style faceplate mounting hardware. You can combine multiple Decora- style modules (if all are low-voltage controls) within one Decora faceplate (up to six-gang) with color-matched plate screws.
  • Page 11 Insert the two bottom tabs into the bottom slots first, then the two tabs on the top (see Figure 2). Press carefully on the front of the insert to snap it into place. NILES AUDIO CORPORATION – 1-800-BUY-HIFI (CONTINUED) Figure 1 (CONTINUED)

  • Page 12: Preparing For Installation

    INSTALLATION CONSIDERATIONS CHANGING THE COLOR OF THE KNOB AND THE DECORA INSERT 5. Locate the new knob. Align its flat side to the flat side of the shaft, and push the knob onto the shaft. Holding the unit as shown in Figure 1, check the alignment of the knob by turning it through all positions. PREPARING FOR INSTALLATION NOTE: THE WMVC 100 AND WMV 100E REQUIRE 12VDC POWER TO OPERATE THE MUTING FUNCTION OF THE VOLUME CONTROL.

  • Page 13: Installation

    Use a small flathead screwdriver to tighten the screws in place. Maintain correct polarity when making connections. NILES AUDIO CORPORATION – 1-800-BUY-HIFI (CONTINUED ON NEXT PAGE)
  • Page 14 INSTALLATION (CONTINUED) Receiver 12VDC MVC HUB4 Speakers Figure 3. Wiring Diagram (CONTINUED ON NEXT PAGE)
  • Page 15 INSTALLATION (CONTINUED) AMPLIFIER’S MINIMUM SPEAKER LOAD IS 4 OHMS 8 OHM Speaker Pairs 4 OHM Speaker Pairs NILES AUDIO CORPORATION – 1-800-BUY-HIFI Figure 4 AMPLIFIER’SMINIMUM SPEAKER LOAD IS8 OHMS 8 OHM Speaker Pairs 4 OHM Speaker Pairs Figure 5 (CONTINUED ON NEXT PAGE)
  • Page 16 INSTALLATION (CONTINUED) Figure 6 Figure 7 Figure 8 (CONTINUED ON NEXT PAGE)
  • Page 17 (CONTINUED) 6. Set the Impedance Magnification Switch (See Figure 7) as determined by the IM charts (Figures 4 and 5). 7. Plug the connectors into the volume control as shown in Figure 6. The inputs of the IM volume control are the connector pins labeled AMPLIFIER.

  • Page 18: Operation

    4. Turn ON the amplifier or receiver and select a source, such as the tuner or CD player. 5. Observe the MVC100 Mute button: Red: MUTE ON, Green: ACTIVE. If Mute button is Red, activate the speakers by briefly pressing the Mute button changing its color to Green.
  • Page 19 Niles volume controls do not require any regular maintenance other than occasional cleaning. Use a damp soft cloth and simply wipe the knob and wallplate clean. Do not use an abrasive cleanser as this might scratch the surface of the wallplate. NILES AUDIO CORPORATION – 1-800-BUY-HIFI...

  • Page 20: Specifications

    SPECIFICATIONS Audio Power Handling 100W/channel RMS. 200W/channel peak music power. Mounting In-wall, fits into most 18-cubic-inch single-gang junction boxes at least 2-3/4" deep. Wiring Requirements 14-16 gauge, two individual runs of two- conductor speaker wire, or one run of four-conductor speaker wire. IR Wiring Requirements Individual home-run of category 5 cable.

  • Page 21: Contents

    • Blank Decora wallplate X1 • Knob X1 • Device mounting screws X2 • Faceplate screws X2 • Removable speaker connector X2 NILES AUDIO CORPORATION – 1-800-BUY-HIFI MVC 100 • MVC 100 Volume Control • Snap-on Decora color insert • Knob •...
  • Page 22 (a) Electrical Box (b) Speaker Wire (c) MVC100IR Volume Control (supplied) (d) Snap-on Color Insert (supplied) (e) Knob (supplied) (f) Device Screws (2 supplied) (g) Decora Wallplate (supplied) (h) Faceplate Screws (2 supplied) Figure 10...
  • Page 23 NOTES ____________________________________________________________________________________________ ____________________________________________________________________________________________ NILES AUDIO CORPORATION – 1-800-BUY-HIFI...
  • Page 24 ® L E N D I N G I G H I D E L I T Y R C H I T E C T U R E N i l e s A u d i o C o r p o r a t i o n 1 2 3 3 1 S .

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