Yamaha VC8B Owner's Manual

SPEAKER SYSTEM
VC8B VC8W VC6B VC6W VC4B VC4W
Owner's Manual
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 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 CAUTION
Always follow the basic precautions listed Always follow the basic precautions listed
below to avoid the possibility of serious below to avoid the possibility of physical
injury or even death from electrical shock, injury to you or others. These precautions
short-circuiting, damages, fire or other include, but are not limited to, the
hazards. These precautions include, but following:
are not limited to, the following:
Location and connection
If you notice any abnormality
• Keep this product out of reach of children. This
• If any of the following problems occur, product is not suitable for use in locations
immediately turn off the power of the amplifier. where children are likely to be present.
- Unusual smells or smoke are emitted. • Do not place the product in a location where it
may come into contact with corrosive gases or
- Some object, or water has been dropped
salt air. Doing so may result in malfunction.
into the product.
- There is a sudden loss of sound during use • Use only speaker cables for connecting
of the product.
speakers to the speaker jacks. Use of other
- Cracks or other visible damage appear on
types of cables may result in fire.
the product.
Handling caution
Then have the product inspected or repaired
by qualified Yamaha service personnel. • Do not insert your fingers or hands in any gaps
or openings on the product (clamps or moving
Do not open
parts on the rails).
• Do not rest your weight on the product or place
• This product contains no user-serviceable
parts. Do not attempt to disassemble the heavy objects on it.
internal parts or modify them in any way.
• When choosing a power amplifier for use with
this product, make sure that the output power
Water warning
of the amplifier meets the following conditions:
- When using a low-impedance connection,
• Do not expose the product to rain, use it near
make sure that the output power of the
water or in damp or wet conditions.
amplifier is lower than the power capacity of
Fire warning
this product.
- When using a high-impedance connection,
• Do not place any burning items or open flames
be sure that the total rating of the transformer
near the product, since they may cause a fire.
taps of the speakers does not exceed the
Hearing loss
output power of the amplifier.
If the output power is not appropriate,
• Before turning the power of all devices on or off,
malfunction or fire may occur.
make sure that all volume levels are set to the
• Do not input excessively loud signals that may result
minimum. Failing to do so may result in hearing
in clipping in the amplifier or cause the following:
loss, electric shock, or device damage.
- Feedback, when using a microphone
• When turning on the AC power in your audio
- Continuous and extremely loud sound from a
system, always turn on the power amplifier
musical instrument, etc.
LAST, to avoid hearing loss and speaker
- Continuous and excessively loud distorted
damage. When turning the power off, the
sound
power amplifier should be turned off FIRST for
- Noise caused by plugging/unplugging the
the same reason.
cable while the amplifier is turned on
Location and connection
Even if the output power of the amplifier is
lower than the power capacity of this product
• Always consult a professional installer if the
(program), damage to the product,
product installation requires construction work, and
malfunction or fire may occur.
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.
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.
About 7 mm
Compatible cable:
Min. AWG24 (0.2 sq)
Max. AWG16 (1.25 sq)
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
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 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 are 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.
C-ring
3.
Secure the C-ring and tile rails with the supplied two screws through
either slot of both C-ring brackets.
C-ring
Tile rail
VEY4150
English
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
amplifier.
• When using a high-impedance speaker
connection, make sure the audio signal is
passed through an 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.
PA_en_12
2 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 pass the
cable through the removed terminal cover according to the wiring
direction.
In this manual, the example illustrations show the top terminal cover hole.
Terminal cover
Speaker cable
The terminal cover do 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 open-
ing the hole. Otherwise, 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.
Terminal screw
Loosen
Tighten
Euroblock plug
Flat-blade
screwdriver
Less than 3 mm
From amplifier
To subsequent
or previous
Use a flat-blade
speakers
speakers
screwdriver with a blade
less than 3 mm.
4.
Plug the connected Euroblock plug into the socket in the speaker.
5.
Tighten the screws and then attach the terminal cover.
EN
Unpacking
Unpack the contents and confirm that The following Reinforcing Bracket
all the following items are included. Kit is included only with VC8B,
VC8W, VC6B, VC6W.
• Speaker × 1
• Grille × 1 • Tile rails × 2
• Safety wire × 1 • C-ring × 1
• Cutout template × 1 • Screws (S-TITE M4, 8 mm) × 2
• Owner's Manual (this manual)
* Speaker cable is not included.
General Specifications
System Type
Components HF
LF
Nominal Impedance
*1
Frequency Range (-10 dB)
Coverage Angle *1
Power Rating NOISE
PGM
MAX
*1
Sensitivity (1 W, 1 m)
Maximum SPL *2 (Calculated, 1 m,
Peak)
Transformer Taps 100 V
70 V
Overload Protection
Connector
Baffle
Grille Metal Grille
Trim Ring
Back Can
Dimensions (Including grille)
Weight (Including grille)
Cutout size
Required ceiling board thickness
Conduit tube
Packaging
Included in the
package
Reinforcing
Bracket Kit
Optional accessories
*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 back side of the manual.
Wiring and installation shall be in accordance with the National Electrical Code, NFPA70 for United States, Canadian Electrical Code, CSA C22.1 for
Canada and the local authority having jurisdiction.
3 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.
Safety wire
Safety wire ring
CAUTION
Always take measures to prevent the speaker from falling
down.
If the safety wire is too short, prepare another wire appropri-
ate 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, VC6B,
(VC4B, VC4W) VC6W, VC8B, VC8W)
When the AB-C2 Reinforcing When the included Reinforcing
Bracket Kit (sold separately) Bracket Kit or AB-C2 (sold
is not used. separately; VC4B and VC4W
only) is used.
Carrying band Carrying band
Safety wire Safety wire
Speaker
cable
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
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.
Clamp
NOTICE
Do not over-tighten the attachment screws. Otherwise, the attachment
screws and clamps will break.
1
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
VC4B VC4W VC6B VC6W
2way Coaxial type, Acoustic Suspension
0.8" film dome 0.8" soft dome
4" (10 cm) cone 6.5" (16 cm) cone
16 Ω
121 Hz - 20 kHz 104 Hz - 20 kHz
160° conical 120° conical
15 W 25 W
30 W 50 W
60 W 100 W
88 dB SPL 89 dB SPL
106 dB SPL 109 dB SPL
1.5/3/6 W 3/6/12 W
0.8/1.5/3/6 W 1.5/3/6/12 W
Full-range power limiting to protect network and transducers
Euroblock (4 pin) ×1
Wire size : Min. AWG24 (0.2 sq), Max. AWG16 (1.25 sq)
PP, black
Punching metal, Powder coating
black (Munsell N3) / white (Munsell N9.3)
ABS, black (Munsell N3) / white (N9.3)
Steel, black
Ø225 × D95 mm Ø286 × D106 mm
2.1 kg 3.3 kg
Ø186 mm Ø247 mm
2 mm - 37 mm
Ø15.4 mm - Ø21.3 mm
1 pc
Grille, Safety wire, Cutout template, Owner's Manual
– C-Ring, Tile Rails × 2
AB-C2 –
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 figure below.
Clamp
2.
Remove the safety wire from the speaker that is detached from the
ceiling.
4 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 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 low impedance connection, select the 16 Ω position.
6
3
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 malfunction of the speaker and
amplifier.
Speaker 5 Attach the Grille
cable
Attachment
screw
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.
VC8B VC8W
1" soft dome
8" (20 cm) cone
96 Hz - 20 kHz
110° conical
25 W
50 W
100 W
91 dB SPL
111 dB SPL
3/6/12 W
1.5/3/6/12 W
Ø325 × D122 mm
4.2 kg
Ø285 mm
C-Ring, Tile Rails × 2
–
1 Align the grille with the cabinet's
face and fit them together.
2 Turn clockwise (approx. 30°) to
secure the grille.