VCS100K - Controller Niles - Free user manual and instructions

Product Type	Volume Control Controller
Brand	Niles
Model	VCS100K
Power Handling	100 Watts per channel (RMS)
Impedance	8 Ohms (nominal)
Frequency Response	20 Hz - 20 kHz
Dimensions (H x W x D)	2.5 x 2.5 x 1.5 inches (wall plate)
Weight	0.5 lbs (225 g)
Mounting Type	In-wall / single-gang
Control Type	Rotary knob with detents
Input/Output Connections	Spring-loaded speaker terminals
Wire Gauge Supported	14 AWG to 18 AWG
Material	High-impact ABS plastic
Color	White (paintable)
Certifications	UL Listed, CE Compliant
Warranty	Limited Lifetime
Cleaning Instructions	Wipe with a soft, dry cloth. Do not use liquids or solvents.
Safety Precautions	Do not exceed rated power. Install in dry location. Disconnect power before wiring.
Included Accessories	Knob, mounting screws, wire connectors
Spare Parts Availability	Knob and faceplate available from Niles

Frequently Asked Questions - VCS100K Niles

How do I wire the Niles VCS100K volume control?

Connect speaker wires from your amplifier to the 'IN' terminals and wires to your speakers to the 'OUT' terminals. Ensure polarity is consistent (+ to +, - to -). Use 14-18 AWG wire. Tighten spring terminals securely.

What is the maximum power that can be handled?

The VCS100K is rated for 100 watts RMS per channel into 8 ohms. Do not exceed this rating to avoid damage.

Can I use this with a 70V distributed audio system?

No, the VCS100K is designed for standard 8-ohm speaker systems. It is not compatible with 70V systems unless used with a matching transformer.

Does the volume control have an 'off' position?

Yes, turning the knob fully counterclockwise will mute the speakers. There is a soft click at the minimum position.

What is the depth of the unit behind the wall?

The depth from the front of the wall plate to the back of the housing is approximately 1.5 inches (38 mm). Ensure a minimum drywall depth of 2 inches.

Can I paint the wall plate?

Yes, the white plastic plate can be painted to match your decor. Lightly sand and use spray paint designed for plastics.

How do I clean the volume control?

Use a soft, dry cloth to wipe the faceplate and knob. Do not use water, cleaners, or abrasive materials, as they may damage the surface.

Is the VCS100K impedance-compensated?

Yes, it incorporates impedance compensation circuits to maintain a stable load on the amplifier, even at reduced volume levels.

What tools are needed for installation?

You will need a screwdriver, wire strippers, and a voltage tester. Recommended: a stud finder and drywall saw for new installations.

Where can I find a replacement knob?

Replacement knobs are available through Niles customer service or authorized dealers. Contact support with your model number VCS100K.

USER MANUAL VCS100K Niles

Close-up of a white circular button with a dot on top, mounted on a square base (no text or symbols visible)

VCS100K

High-Power Stereo Volume Control

NILES®

BLENDING HIGH FIDELITY AND ARCHITECTURE®

HIGH

POWER STEREO VOLUME CONTROLS

VCS100K

TABLE OF CONTENTS

Introduction	1
Features and Benefits	2
Installation Considerations	3
Installation	6
Operation	9
Specifications	10

INTRODUCTION

The VCS100K is a wall mount, stereo speaker volume control. It connects between the speaker-level output of an amplifier, speaker selector, or distribution hub and a pair of speakers.

A perfect application for the VCS100K is adjusting the volume of remotely located speakers. The VCS100K adjusts the volume of speakers connected to it by attenuating the amplifier signal. To assure minimal dissipation of internal power with virtually no power wasted as heat, Niles volume controls use autoformers instead of L-pads as the volume-controlling element.

The VCS100K is an impedance-magnifying (IM) volume control. Unlike other brands, it has additional autoformer windings that magnify the impedance of connected speakers, while allowing all 12 steps to adjust the volume of the sound. Switches on the PC board select these windings.

With the volume control providing impedance protection for your amplifier, you can create systems with no additional impedance-matching devices between the volume control and the amplifier.

In a typical application of IM controls, a system has eight pairs of 8-ohm speakers throughout the house and in adjacent outdoor locations. Connect each pair of speakers to an IM volume control with its switch in the 8x position, eliminating the need for an external impedance-matching device to protect the amplifier. Even when playing all eight speaker pairs at once, the amplifier runs at normal operating temperatures.

HIGH-POWER STEREO VOLUME CONTROLS

FEATURES AND BENEFITS

The VCS100K offers a number of improvements over other volume controls:

- Interchangeable Decora-style inserts for fast, easy color change.

- A universal impedance-magnifying design enables the VCS100K to act as both a stereo and an impedance magnifying volume control. You can magnify the speakers' impedance by a factor of two, four, or eight.

- Unlike other impedance-matching volume-control products, Niles IM volume controls maintain a 12-position adjustment regardless of how much impedance magnification you use, with total attenuation >48dB.

- Pop-free switching between all steps.

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

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

- May be used with 4-, 6-, or 8-ohm speaker systems.

- Ideal for home and commercial sound installations.

- UL rated to comply with all local building codes.

- Included colors: white, light almond, bone and black.

• Installation requires only a screwdriver and wire stripper.

- Mounting depth of only 2-9/16". Fits into standard 18-cubic-inch one-gang junction boxes.

• Power handling: 100W/channel RMS.

• Frequency response: 20Hz to 20kHz ±2dB.

- Ten year parts and labor limited warranty.

TECH TIP

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.

HIGH-POWER STEREO VOLUME CONTROLS

INSTALLATION CONSIDERATIONS

Calculating the Impedance Magnification Setting

Use the following instructions and the accompanying charts to select the correct switch setting for the number and type of speakers in your system.

CAUTION! Every speaker pair in the system must be connected to an impedance-magnifying volume control and set to the same magnification.

1. Count the number of pairs of 4-ohm speakers and the number of pairs of 8-ohm speakers you are connecting. Count pairs of 6-ohm speakers as 4-ohm pairs.
2. Determine whether the amplifier should see a 4-ohm load or an 8-ohm load. This information is typically found in the owner's manual of the amplifier.
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.
4. Set the switches on all of the controls to the same position (1x, 2x, 4x, or 8x). See Figure 7.

Limitations in Volume with High Magnification Settings

Using an 8x setting limits the power to each speaker pair to one-eighth of the amplifier's output.

In a typical application of IM volume controls, a system has eight pairs of 8-ohm speakers throughout the house and in adjacent outdoor locations. Each pair of speakers is connected to an IM volume control with its switches set for 8x.

TOOLS REQUIRED

• 1/8" Standard Slotted Screwdriver

• #2 Phillips Screwdriver

- Wire Stripper

With eight pairs of speakers, one-eighth of the amplifier's power is available to any pair. Therefore, an amplifier rated at 100W per channel RMS into 8 ohms will deliver up to 12.5W to each of the eight pairs – whether you play all eight pairs or just one pair. This translates into a drop in the maximum volume capability of about 9dB at the 8x setting.

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 speakers playing throughout the house.

HIGH-POWER STEREO VOLUME CONTROLS

Speaker-selection systems give you central control, but some speaker selectors have non-defeatable impedance-protection circuits. Combining IM controls with such a selector will reduce your maximum volume substantially. To solve this problem, specify a speaker selector with a defeatable protection circuit (Niles models HPS-4, HPS-6, SS-4, or SS-6). Keep the protection circuit off at all times.

Junction Boxes

The mounting depth of the VCS100K is 2-9/16". When installed, the unit extends 2-1/16" behind the sheetrock wall (assuming 1/2" sheetrock). For installation, use a standard 18-cubic-inch (or larger) junction box. Suitable junction boxes are available from your Niles dealer or local electrical-supply company.

Type of Speaker Wire

We recommend 16-gauge stranded copper speaker wire for most connections. Don't use speaker wire larger than 16 gauge, because larger wire may not fit into the connectors. Never use solid-core, aluminum, or Romex wire with an IM volume control. For speaker-wire runs within

12 AWG

14 AWG

TECH TIP

Wire size is expressed by its AWG (American Wire Gauge) number. The lower the AWG number, the larger the wire. Thus, 12 AWG wire is physically larger than 14 AWG.

walls, most U.S. states and municipalities require a special type of speaker wire with a specific CL fire rating, such as CL-2 or CL-3. Consult your Niles dealer, building contractor, or local building-inspection department if you aren't sure what kind of wire is best for your application.

Mounting Locations

Some states or municipalities allow installation of devices such as Niles speaker volume controls in the same junction box as 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. If you must locate the volume control near electrical devices, install it in a separate metal junction box, ground the box to the electrical-system ground, and route the speaker wires several feet away from the electrical wiring.

Convenient mounting locations include:

• Near doorways.
• Near a desk.
• At your bedside.
• Close to a telephone.
  • Near other wall-mounted controls.

HIGH-POWER STEREO VOLUME CONTROLS

The VCS100K is designed to use 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. Single-gang Decora plates and knob are included in white, light almond, bone and black.

Changing the Color of the Knob and the Decora Insert

The Decora-style insert and knob on the VCS100K is removable, allowing fast and easy color changes as needed. To change the color of your unit:

1. Pull the knob off the shaft. See Figure 1.

2. Next, locate the two plastic mounting tabs at the top rear of the Decora-style insert. Using two fingers, simultaneously press both tabs down (towards the center of the insert) and forward (away from you) until the insert pops free from its mounting slots.

3. Locate the new Decora-style insert. Hold the volume control facing you. 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.

4. 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

Before you install the VCS100K into an existing wall, consider the possibility of hidden obstructions inside the wall, such as wood and metal studs; electrical, telephone, or other wiring; plumbing; conduit; and old wall safes.

1. Install the junction box in the usual manner.
2. Run all necessary wiring to the volume control. Label the wires for future reference.

HIGH-POWER STEREO VOLUME CONTROLS

INSTALLATION

1. Locate the connector plugs (and remove them if they are plugged in). See Figure 6.

2. Strip 1/4" of insulation from the end of each wire. Tightly twist the end of each wire until no frayed ends remain.

3. Use a small flathead screwdriver or your thumbnail to raise the locking tabs, exposing the holes on the removable connector plug.

4. Insert each wire into the appropriate hole on the removable connector plug, and snap the locking tab down.

Figure 3 Wiring Diagram

NOTE: Maintain proper phasing. Connect the positive terminals on the volume control to the positive terminals on the amplifier and speakers, and connect the negative terminals on the volume control to the negative terminals on the amplifier and speakers. See

Figure 3. To help you avoid improper phasing, the connector plug is keyed. Insert the smooth side of the connector plug into the smooth side of the socket. Don't force the scalloped side of the

connector plug into the smooth side of the socket. See Figure 6.

1. Set the Impedance Magnification Switch (See Figure 7) as determined by the IM charts (Figures 4 and 5).

2. 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. The outputs are the connector pins labeled SPEAKERS.

NOTE: If you reverse these connections, the volume control won't function properly.

1. Secure the volume control to the junction box. Insert the 1-1/4" device screws into the oblong screw holes on the top and bottom of the volume control. The oblong shape of the screw holes helps you place the volume control in a vertical position. Align the screws with the threaded holes in the junction box. Tighten the screws using a Phillips screwdriver. DO NOT OVERTIGHTEN. If necessary, loosen these screws several turns so the volume control fits flush with the faceplate.

HIGH-POWER STEREO VOLUME CONTROLS

Figure 4

Figure 5

Technical line drawing of an electronic device housing with a connector and pinout (no text or symbols)

Figure 6

Figure 7

HIGH-POWER STEREO VOLUME CONTROLS

INSTALLING THE SCREWLESS DECORA® FACEPLATE

Technical line drawing of a screwdriver holding a rectangular device with an arrow indicating assembly (no text or symbols present)

1 Locate the slot at bottom of faceplate and insert the tip of a flathead screwdriver. Carefully pry up, unsnapping faceplate from mounting plate.

2 Secure mounting plate of the appropriate color to the Volume Control (using the supplied screws). Note 'TOP' orientation.

3 Place the faceplate cover at the top of the faceplate and insert tabs noting 'TOP' orientation. Swing down bottom and snap into place.

HIGH-POWER STEREO VOLUME CONTROLS

OPERATION

1. Make sure the amplifier or receiver power is OFF and set the volume to minimum.

2. Set the volume on the volume control to maximum (fully clockwise).

3. If you are using a Niles speaker-selection system, locate the ON/OFF button that corresponds to the speaker pair you wish to play. Set it to the ON position. Make sure the defeatable protection circuit is not enabled. See Using Speaker Selectors with IM Volume Controls, on page 3.

4. Turn ON the amplifier or receiver and select a source, such as the tuner or CD player.

5. Slowly turn up the amplifier or receiver volume and set it to a comfortable – not maximum – listening level. Don't overdrive or "clip" your amplifier. If the sound becomes muddy or distorted, you have reached the limit of your amplifier's volume capability. Reduce the volume at once to avoid damaging your speakers.

6. Use the volume control to adjust the volume of the speakers to

Technical line drawing of a mechanical device with a knob and circular base (no text or symbols)

Figure 8 Loosening the Screws for a Flush Fit

the desired listening level. If all the speaker pairs in your system are equipped with Niles volume controls, you can set the amplifier or receiver volume at one position and use the Niles controls exclusively.

1. To turn OFF the speakers, turn the knob on the volume control fully counter-clockwise, or press the ON/OFF button on your speaker selector.

MAINTENANCE

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.

TECH TIP

When using a receiver, set all of your IM volume controls at maximum volume. Then turn up the master volume on the receiver until you reach the maximum listening level. Finally, turn down the volume controls.

HIGH·POWER STEREO VOLUME CONTROLS

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

16 gauge, two individual runs of two-conductor speaker wire, or one run of four-conductor speaker wire.

Unit Dimensions

1-5/8" wide x 2-5/8" high

Faceplate Dimensions

Faceplate: 2-3/4" wide x 4-1/2" high

Depth Behind Faceplate

2-9/16"

CONTENTS

VCS100K

• VCS100K volume control
- Snap-on Decora color insert (in white, light almond, bone and black)
- Screwless Decora wallplate (in white, light almond, bone and black)
- Knob (in white, light almond, bone and black)
• Device mounting screws X2
- Removable speaker connector X2

NILES

www.nilesaudio.com

1969 Kellogg Avenue

Carlsbad, CA 92008

Tel: [phone]

Fax: [phone]

© 2011 The AVC Group, LLC. All rights reserved. Niles, the Niles logo, and Blending High Fidelity and Architecture are registered trademarks of The AVC Group, LLC. Decora is a registered trademark of Leviton Manufacturing. All other trademarks are the property of their respective owners. Some Niles products (or components thereof) are manufactured under one or more U.S. Patents, foreign equivalents and/or pending patents (see product for details). Because we constantly strive to improve our products, we reserve the right to change product specifications, descriptions, and prices without notice. The technical and other specifications of information contained herein is not intended to set forth all technical and other specifications of Niles products. Additional information can be obtained at www.nilesaudio.com or by calling Niles at 1-800-289-4434.

Indoor High-Power Stereo Volume Control

VCS100K

FG01652

High-power wall-mount stereo volume control enables you to adjust the volume conveniently from any room.

EACH BOX CONTAINS 4 COLOR OPTIONS

White

Light Almond

Bone

Back

CUSTOM ELECTRONIC DESIGN & INSTALLATION ASSOCIATION

VCS100K STOCK# FG01652

Architectural cutaway diagram of a two-story residential house showing interior layout and furniture placement (no text or labels)

TYPICAL APPLICATION

The VCS100K lets you adjust the volume of a pair of loudspeakers, just as a light dmmer enables you to control the light. You can control the sound level conveniently, in any room of your home. Even if the audio/video system is located downstairs in the living room, you can control the volume of the speakers in the bedroom without ever going downstairs. The wall-mounted VCS100K also includes designer wall plates in 4 colors which are sure to complement virtually any décor.

Audio/Video Receiver >VCS100K

VCS100K>Speakers

CONTENTS

Instruction Manual

Installation Hardware

OUR COMMITMENT TO QUALITY

Niles Products are manufactured and 100% tested to the highest industry standards.

© The AVC Group, LLC. Niles, the Niles Logo and Blending High Fidelity and Architecture are registered trademarks of The AVC Group, LLC. All other trademarks are the property of their respective owners. Engineered in the USA. Manufactured to Niles Quality Specifications in China.

Niles Audio / 1969 Kellogg Avenue, Carlsbad, CA 92008 / 760.710.0992

NILES®

High-Power Stereo Volume Control

VCS100K

FG01652

FEATURES

Adjust the volume of your remotely located speakers without ever leaving the room.

Universal Impedance Magnifying circuit enables safe connection of up to eight pairs of loudspeakers to a single amplifier or receiver using the VCSHUB8.
Make-before-break switch design delivers 12-step, pop-free control for a wide range of listening volumes.
Premium-quality parts and construction ensure high-fidelity sound, 100W continuous power handling with flat frequency response (+/- 1.2dB).
Includes designer approved screwless wallplates in 4 colors to blend seamlessly into any décor and accommodates standard one gang electrical boxes.
Two-piece, removable speaker connectors make installation quick and secure. No screws necessary. Accommodates up to 16-gauge wire.
100% factory tested for frequency response, distortion, and power handling.
Ten-year limited parts and labor warranty.

NILES®

High-Power Stereo Volume Control

VCS100K

FG01652

NILES®

LIMITED WARRANTY CARD

NILES®

THE FIRST NAME IN CUSTOM INSTALLATION®

1-800-BUY-HIFI 1-305-238-4373 www.nilesaudio.com

©2008 Niles Audio Corporation 12331 S.W. 130 Street, Miami, FL 33186. All rights reserved. WR00008A

LIMITED WARRANTY

Niles Audio Corporation ("NILES") warrants to the original retail purchaser only that this product will be free of manufacturing defects in material and workmanship for the following periods and subject to the limitations and exclusions set forth below:

Lifetime Warranty

All Passive Loudspeaker Products (those not requiring AC or battery power).

Ten years from the date of purchase

All Other Passive Products (those not requiring AC or battery power).

Two years from the date of purchase

All Active Products (those requiring AC or battery power).

This warranty is not transferable to subsequent purchasers of the product. To obtain warranty service, contact the authorized dealer where you purchased your product or take the unit to the nearest authorized NILES dealer (with proof of purchase – claims made without proof of purchase will be denied) who will test the product and if necessary, forward it to NILES for service. If there are no authorized NILES dealers in your area, you must contact NILES to receive a factory Return Authorization Number. DO NOT RETURN ANY UNIT WITHOUT FIRST RECEIVING WRITTEN AUTHORIZATION AND SHIPPING INSTRUCTIONS FROM NILES.

Upon examination, NILES will, at its sole option and expense, repair or replace any product found to be defective. NILES will return the repaired or replaced unit to you via its usual shipping method from the factory to your address in the United States of America or Canada only. Any shipping costs for addresses outside of the United States or Canada shall be the responsibility of the purchaser. In the event that this model is no longer available and cannot be repaired effectively, NILES, at its sole option, may replace it with a different model of equal or greater value, or refund the original purchase price paid. THE FOREGOING ARE YOUR EXCLUSIVE REMEDIES FOR BREACH OF WARRANTY.

This Warranty does not include service or parts to repair damage caused by improper use or handling, including but not limited to damage caused by accident, mishandling, improper installation, commercial use, abuse, negligence, or normal wear and tear, or any defect caused by repair to the product by anyone other than NILES.

This warranty does not cover reimbursement for your costs of removing and transporting the product for warranty service evaluation, or installation of any replacement product provided under this warranty.

This Warranty will be void if:

• the Serial Number on the product has been removed, tampered with or defaced.
• the product was not purchased from an authorized dealer or reseller.

THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESSED AND IMPLIED WARRANTIES. NILES EXPRESSLY DISCLAIMS ALL SUCH OTHER WARRANTIES, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT, WITH RESPECT TO THE PRODUCT. TO THE MAXIMUM EXTENT PERMITTED BY LAW, NILES SHALL NOT BE RESPONSIBLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES EXCEPT TO THE EXTENT PROVIDED (OR PROHIBITED) BY APPLICABLE LAW, EVEN IF NILES HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Notwithstanding the above, if you qualify as a "consumer" under the Magnuson-Moss Warranty Act, or applicable state laws, then you may be entitled to any implied warranties allowed by law for the Warranty Period. Further, some states do not allow limitations on how long an implied warranty lasts or allow the exclusion or limitation of consequential damages, so such limitations may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

For the name of your nearest authorized NILES dealer, contact: NILES AUDIO CORPORATION, P.O. BOX 160818, Miami, Florida 33116-0818, or call 1-800-289-4434, 1-305-238-4373. Please be advised that NILES only sells its products via the Internet through a select group of authorized Internet dealers. These are listed on our website at www.nilesaudio.com. Products offered on the Internet through unauthorized Internet dealers are not covered by the NILES warranty and may be either:

1) goods acquired on a secondary or grey market
2) counterfeit or stolen goods
3) damaged, or defective goods

Please fill in your product information and retain for your records.

Model

Serial No.

Purchase Date

ATTENTION: TO OUR VALUED CONSUMERS:

To insure that consumers obtain quality pre-sale and after-sale support and service, NILES products are sold exclusively through authorized dealers. This warranty is VOID if the products have been purchased from an unauthorized dealer.