Yamaha VC8NB Owner's Manual

SPEAKER SYSTEM
VC8NB VC8NW VC6NB VC6NW VC4NB VC4NW
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 following:
hazards. These precautions include, but
Location and connection
are not limited to, the following:
• Keep this product out of reach of children. This
If you notice any abnormality
product is not suitable for use in locations
• If any of the following problems occur, where children are likely to be present.
immediately turn off the power of the amplifier. • Do not place the product in a location where it
may come into contact with corrosive gases or
- Unusual smells or smoke are emitted.
salt air. Doing so may result in malfunction.
- Some object, or water has been dropped
into the product. • Do not place the product in a location where it
- There is a sudden loss of sound during use may be exposed to smoke or oil vapors, or
of the product. where any of its parts might deteriorate and
- Cracks or other visible damage appear on cause malfunction.
the product. • Before moving the product, remove all
Then have the product inspected or repaired connected cables.
by qualified Yamaha service personnel. • Use only speaker cables for connecting
speakers to the speaker jacks. Use of other
Do not open
types of cables may result in fire.
• This product contains no user-serviceable
Handling caution
parts. Do not attempt to disassemble the
internal parts or modify them in any way. • Do not insert your fingers in any gaps or
openings on the product (clamps or moving
Water warning
parts on the rails).
• Do not rest your weight on the product or place
• Do not expose the product to rain, use it near
heavy objects on it.
water or in damp or wet conditions.
• When choosing a power amplifier for use with
Fire warning
this product, make sure that the output power
of the amplifier meets the following conditions:
• Do not place any burning items or open flames
- When using a low-impedance connection,
near the product, since they may cause a fire.
make sure that the output power of the
Hearing loss
amplifier is lower than the power capacity of
this product.
• Before turning the power of all devices on or off,
- When using a high-impedance connection,
make sure that all volume levels are set to the
be sure that the total rating of the transformer
minimum. Failing to do so may result in hearing
taps of the speakers does not exceed the
loss, electric shock, or device damage.
output power of the amplifier.
• When turning on the AC power in your audio
If the output power is not appropriate,
system, always turn on the power amplifier
malfunction or fire may occur.
LAST, to avoid hearing loss and speaker
• Do not input excessively loud signals that may result
damage. When turning the power off, the
in clipping in the amplifier or cause the following:
power amplifier should be turned off FIRST for
- Feedback, when using a microphone
the same reason.
- Continuous and extremely loud sound from a
Location and connection
musical instrument, etc.
- Continuous and excessively loud distorted
• Always consult a professional installer if the
sound
product installation requires construction work, and
- Noise caused by plugging/unplugging the
make sure to observe the following precautions.
cable while the amplifier is turned on
- Choose mounting hardware and an
Even if the output power of the amplifier is
installation location that can support the
lower than the power capacity of this product
weight of the product.
(program), damage to the product,
- Avoid locations that are exposed to constant
malfunction or fire may occur.
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 VC4NB.
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 spring type connector, strip the insulation as
shown in the figure and connect them.
About 8-9 mm
Compatible cable:
Min. AWG18 (0.75 sq)
Max. AWG12 (3.5 sq) for solid core wire/
AWG14 (2 sq) for stranded wire
NOTE
Do not plate core wires by soldering if the cable uses stranded wire.
Doing so will cause the wire to break.
1 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 entering your eyes
while cutting the hole.
When the included Reinforcing Bracket Kit or AB-C2 (sold
separately) is used
For the VC8NB, VC8NW, VC6NB, and VC6NW, the included
Reinforcing Bracket Kit must be used.
For the VC4NB and VC4NW, 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
VEY4250
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.
The dust-proof bag has notches at the
spring type terminal and a safety wire so
that you can work with the dust-proof
cover attached.
Cable
Safety wire
Spring type
terminal
2. Insert the cable into each terminal.
Insert the cable while holding the lever, and when fully inserted, release
your finger from the lever to securely connect.
(Lever operation is not required for solid core wire.)
Make sure that the cables cannot be pulled out.
Spring type terminal
While holding down lever...
Insert cables Release lever
From amplifier or
previous speakers
To subsequent speakers
EN
Unpacking
Unpack the contents and confirm that The following Reinforcing Bracket
all the following items are included. Kit is included only with VC8NB,
VC8NW, VC6NB, VC6NW.
• 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
Dust-proof bag
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.
3 Fix the Speaker onto the Ceiling
1. From the hole on the top of the dust-proof cover, attach the safety wire
to the safety wire ring, and connect the wire to an independent support
point, such as a joist.
Safety wire
Safty 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 or safety wire.
(VC4NB, VC4NW, VC6NB,
(VC4NB, VC4NW)
VC6NW, VC8NB, VC8NW)
When the AB-C2 Reinforcing When the included Reinforcing
Bracket Kit (sold separately) Bracket Kit or AB-C2 (sold
is not used. separately; VC4NB and
VC4NW only) is used.
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; VC4NB and VC4NW 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
VC4NB VC4NW VC6NB VC6NW
2-way coaxial type (without back can)
0.8" film dome 0.8" soft dome
4" (10 cm) cone 6.5" (16 cm) cone
16
85 Hz - 20 kHz 63 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
Push terminal (WAGO 294 /2 pin) × 1
Wire size: Solid conductor min. AWG18 (0.75 sq), max. AWG12 (3.5 sq)
Standard conductor min. AWG18 (0.75 sq), max. AWG14 (2 sq)
PP, black
Punching metal, Powder coating
black (Munsell N3) / white (Munsell N9.3)
ABS, black (Munsell N3) / white (N9.3)
Artificial fiber, black
Ø225 × D103 mm Ø286 × D114 mm
1.4 kg 2.3 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 ) 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
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.
Safety wire
Attach the Grille
5
Speaker 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.
VC8NB VC8NW
1" soft dome
8" (20 cm) cone
52 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 × D131 mm
2.8 kg
Ø285 mm
C-Ring, Tile Rails × 2
–
position.
1. Align the grille with the cabinet's
face and fit them together.
2. Turn clockwise (approx. 30°) to
secure the grille.