Yamaha VC8B Speaker System Owner’s Manual

SPEAKER SYSTEM
VC8B VC8W VC6B VC6W VC4B VC4W
Owner’s Manual

VEY4150

PRECAUTIONS

PLEASE READ CAREFULLY BEFORE PROCEEDING
Please keep this manual in a safe place for future reference.
This product is a speaker system designed for background music and public address applications in places such as stores, restaurants, and other commercial spaces.
Do not use for any purposes other than the one intended. Those who are unfamiliar with handling or those who can not handle it according to this manual should be supervised by responsible persons to ensure safety.
Always consult a professional installer if the product installation requires construction work.

WARNING
Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical shock, short-circuiting, damages, fire, or other hazards. These precautions include, but are not limited to, the following:

If you notice any abnormality

• If any of the following problems occur, immediately turn off the power of the amplifier.
  – Unusual smells or smoke is emitted. – Some object or water has been dropped into the product.
  – There is a sudden loss of sound during the use of the product.
  – Cracks or other visible damage appear on the product.

Then have the product inspected or repaired by qualified Yamaha service personnel.

Do not open

• This product contains no user-serviceable parts. Do not attempt to disassemble the internal parts or modify them in any way.

Water warning

• Do not expose the product to rain, use it near water or in damp or wet conditions.

Fire warning

• Do not place any burning items or open flames near the product, since they may cause a fire.

Hearing loss

• Before turning the power of all devices on or off, make sure that all volume levels are set to the minimum. Failing to do so may result in hearing loss, electric shock, or device damage.
• When turning on the AC power in your audio system, always turn on the power amplifier LAST, to avoid hearing loss and speaker damage. When turning the power off, the power amplifier should be turned off FIRST for the same reason.

Location and connection

• Always consult a professional installer if the product installation requires construction work, and make sure to observe the following precautions.
  – Choose mounting hardware and an installation location that can support the weight of the product.
  – Avoid locations that are exposed to constant vibration.
  – Use the required tools to install the product.
  – Inspect the product periodically.
• Do not place the product in an unstable position or a location with excessive vibration, where it might accidentally fall down and cause injury.

CAUTION
Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others. These precautions include, but are not limited to, the following:

Location and connection

• Keep this product out of reach of children. This product is not suitable for use in locations where children are likely to be present.
• Do not place the product in a location where it may come into contact with corrosive gases or salt air. Doing so may result in malfunction.
• Use only speaker cables for connecting speakers to the speaker jacks. The use of other types of cables may result in fire.

Handling caution

• Do not insert your fingers or hands in any gaps or openings on the product (clamps or moving parts on the rails).
• Do not rest your weight on the product or place heavy objects on it.
• When choosing a power amplifier for use with this product, make sure that the output power of the amplifier meets the following conditions:
  – When using a low-impedance connection, make sure that the output power of the amplifier is lower than the power capacity of this product.
  – When using a high-impedance connection, be sure that the total rating of the transformer taps of the speakers does not exceed the output power of the amplifier.
  If the output power is not appropriate, a malfunction or fire may occur.
• Do not input excessively loud signals that may result in clipping in the amplifier or cause the following:
  – Feedback, when using a microphone
  – Continuous and extremely loud sound from a musical instrument, etc.
  – Continuous and excessively loud distorted sound
  – Noise caused by plugging/unplugging the cable while the amplifier is turned on

Even if the output power of the amplifier is lower than the power capacity of this product (program), damage to the product, malfunction, or fire may occur.

NOTICE

To avoid the possibility of malfunction/damage to the product or damage to other property, follow the notices below.

Handling and maintenance

• Do not expose the product to excessive dust or vibration, or extreme cold or heat, in order to prevent the possibility of panel disfiguration, unstable operation, or damage to the internal components.
• Be sure to observe the amplifier’s rated load impedance, particularly when connecting speakers in parallel at low impedance. Connecting an impedance load outside the amplifier’s rated range can damage the
• When using a high-impedance speaker connection, make sure the audio signal is passed through a 60 Hz or above high-pass filter before being input to the speakers.
• Do not touch the speaker driver unit, since it might cause malfunction.
• Do not place vinyl, plastic, or rubber objects on the product, since this might cause alteration or discoloration of the panel.
• When cleaning the product, use a dry and soft cloth. Do not use paint thinners, solvents, cleaning fluids, or chemical-impregnated wiping cloths, since this might cause alteration or discoloration.
• Protection Circuit
  This speaker system has an internal protection circuit that shuts off the speaker unit when an excessive input signal is applied. If the speaker unit emits no sound, reduce the volume level of the amplifier immediately. (The sound will return automatically in several seconds.)
• Do not place the speaker face down with the grille attached, as deformation of the grille may result.
• When placing the baffle face down, always place it on a flat surface.

Information

About this manual

• The illustrations as shown in this manual are for instructional purposes only.
• The company names and product names in this manual are the trademarks or registered trademarks of their respective companies.

About disposal

• This product contains recyclable components. When disposing of this product, please contact the appropriate local authorities.

Yamaha cannot be held responsible for damage caused by improper use or modifications to the product.

Unpacking

Unpack the contents and confirm that all the following items are included.

• Speaker × 1
• Grille × 1
• Safety wire × 1
• Cutout template × 1
• Owner’s Manual (this manual)

* Speaker cable is not included.

The following Reinforcing Bracket Kit is included only with VC8B, VC8W, VC6B, VC6W.

• Tile rails × 2
• C-ring × 1
• Screws (S-TITE M4, 8 mm) × 2

Optional Items (sold separately; VC4B and VC4W only)

Reinforcing Bracket Kit (AB-C2)
Bundled Items

• Tile rails × 2
• C-ring × 1
• Screws (S-TITE M4, 8 mm) × 2

* In this manual, the installation method using the AB-C2 Reinforcing Bracket Kit is also explained.

Material and weight of the Reinforcing Bracket Kit (AB-C2): steel, 1.0 kg

General Specifications

*1: Half-space (2π)
*2: Calculated based on power rating and sensitivity

The contents of this manual apply to the latest specifications as of the publishing date. To obtain the latest manual, access the Yamaha website then download the manual file.
The dimensions are shown in “Dimensions” on the backside of the manual.

Wiring and installation shall be in accordance with the National Electrical Code, NFPA70 for the United States, Canadian Electrical Code, CSA C22.1 for Canada and the local authority have jurisdiction.

NOTE
The example illustrations in this manual are of the VC4B.

Installing the Speaker

Before installing the speaker onto the ceiling, ensure that the strength of the ceiling rail is sufficient.

CAUTION
Be careful not to hurt your hands when handling this product.

NOTICE
When installing the speakers, turn off the power amplifier.

Pre-installation (Preparation of the Cable)

• For cables attached to the Euroblock plug, strip the insulation as shown in the figure and connect them.

NOTE
Do not plate core wires by soldering if the cable uses stranded wire.
Doing so will cause the wire to break.

Cut Out a Hole in the Ceiling

1. Put the supplied cutout template to the ceiling and draw a circle by tracing it.
   Make sure to use the cutout template so that hole is the correct diameter.
   If you use a circular cutter, set the diameter using the cutout template.
2. Cut the hole by tracing the circle.

CAUTION
Wear goggles to prevent chips or powder from entering your eyes while cutting the hole.

When the included Reinforcing Bracket Kit or AB-C2 (sold separately) is used
For the VC8B, VC8W, VC6B, and VC6W, the included Reinforcing Bracket Kit must be used.
For the VC4B and VC4W, follow the instructions when using the AB-C2.

1. Insert the two tile rails through the cut hole and place them on the ceiling surface within your reach. Adjust their length and be sure that each of the tile rails is oriented as shown below.
2. Use the opening in the C-ring to slide one section of the C-Ring into the cut hole, continuing to slide it around until the C-ring is completely inside the ceiling.
3. Secure the C-ring and tile rails with the supplied two screws through either slot of both C-ring brackets.

Connect the Wiring to the Connector

1. Pull the wiring from the power amplifier through the cut hole of the ceiling.
2. Remove the terminal cover by loosening the four screws and passing the cable through the removed terminal cover according to the wiring direction.
   In this manual, the example illustrations show the top terminal cover hole. The terminal cover does not have a hole through which the speaker cable passes. Open a hole in the terminal cover (as shown) to use.CAUTION
   Use an appropriate tool for opening the hole. Otherwise, an injury may result if you attempt to open the hole with your bare hands.
3. Remove the Euroblock plug from the speaker. After loosening the terminal screws of the Euroblock plug with a flat-blade screwdriver, insert the cable into each terminal and tighten the screws.
   Make sure that cables cannot be pulled out.
4. Plug the connected Euroblock plug into the socket in the speaker.
5. Tighten the screws and then attach the terminal cover.

Fix the Speaker onto the Ceiling

1. Attach the safety wire to the safety wire ring, and connect the wire to an independent support point, such as a joist. CAUTION
   Always take measures to prevent the speaker from falling down.
   If the safety wire is too short, prepare another wire appropriate for the speaker weight and installation conditions.
2. Push the speaker slowly up into the ceiling, taking care not to trap the speaker cable, carrying band or safety wire.
   

   (VC4B, VC4W) When the AB-C2 Reinforcing Bracket Kit (sold separately) is not used.	(VC4B, VC4W, VC6B, VC6W, VC8B, VC8W) When the included Reinforcing Bracket Kit or AB-C2 (sold separately; VC4B and VC4W only) is used.

3. While lifting up the speaker, turn the screwdriver clockwise to tighten the attachment screw.
   The first turn of the attachment screw opens the clamp. Further turns to move the clamp down the channel to pull the speaker up into the ceiling.
   When the clamp is difficult to open, turning the screwdriver halfway counterclockwise once will make it easier to open the clamp.

NOTICE
Do not over-tighten the attachment screws. Otherwise, the attachment screws and clamps will break.

Removing from the Ceiling

1. While pressing the speaker against the ceiling, loosen the attachment screws by turning them counterclockwise.
   Loosen the screw and the clamp goes up, and as it reaches the top, the clamp closes as shown in the figure below.
2. Remove the safety wire from the speaker that is detached from the ceiling.

Set the Line  Voltage/Impedance and Power

Select the line voltage/impedance (100 V, 70 V, 16 Ω) and power tap for a 100 V, 70 V line distributed system, by rotating the tap selector switch on the front side of the speaker with a flat-blade screwdriver.
When using the speaker with a high-impedance connection, select the position where wattage is indicated by the line (100 V, 70 V). Do not select the “ × ” setting when connecting to a 100 V line.
When using it with a low impedance connection, select the 16 Ω position.



The illustration indicates the setting at 6 W for a 100 V line and 3 W for a 70 V line.

NOTICE

• Make sure the amplifier is switched off before operating the tap selector switch.
• If the setting is incorrect, it may cause a malfunction of the speaker and amplifier.

Attach the Grille

1. Align the grille with the cabinet’s face and fit them together.
2. Turn clockwise (approx. 30°) to secure the grille.

CAUTION

• If the grille is not sufficiently turned, it may fall off. Sufficiently turn the grille, until the fastening sections of the grille and speaker are securely engaged.
• If the ceiling material is soft, the baffle surface may sink into the ceiling material due to overtightening of the attachment screws, and the grill may not fit properly.

ADDRESS LIST

Head Office/Manufacturer: Yamaha Corporation 10-1, Nakazawa-cho, Naka-ku, Hamamatsu, 430-8650, Japan
Importer (European Union): Yamaha Music Europe GmbH Siemensstrasse 22-34, 25462 Rellingen, Germany
Importer (United Kingdom): Yamaha Music Europe GmbH (UK) Sherbourne Drive, Tilbrook, Milton Keynes, MK7 8BL, United Kingdom

Dimensions

Reinforcing Bracket Kit

Yamaha Pro Audio global website
https://www.yamahaproaudio.com/

Yamaha Downloads
https://download.yamaha.com/
Manual Development Group

© 2022 Yamaha Corporation
Published 01/2022
CROD-A0