Yamaha VXC4-VA / VXC4-VAW Ceiling Speaker Owner's Manual
Model: VXC4-VA / VXC4-VAW
PRECAUTIONS
WARNING: Always follow basic precautions to avoid serious injury or death from electrical shock, short circuiting, damage, fire, or other hazards. This device contains no user-serviceable parts. Do not open or modify. Discontinue use and contact qualified Yamaha service personnel if malfunctioning. Avoid exposure to rain, moisture, or liquids. If liquid enters the device, have it inspected by qualified Yamaha service personnel.
CAUTION: Always follow basic precautions to avoid physical injury or damage to the device or other property. Do not place in unstable positions. Do not use handles for suspended installation. Avoid corrosive gases or salt air. Consult qualified Yamaha service personnel for installation requiring construction work. Ensure mounting hardware and location support the weight. Avoid constant vibration. Use required tools. Inspect periodically. Turn off power for all devices before connecting. Set all volume levels to minimum before turning power on or off. Use only speaker cables. Do not insert fingers or hands into openings. Do not rest weight on the device or place heavy objects on it. Do not operate if sound is distorting, as this may cause overheating and fire. Do not pull connected cables. Ensure amplifier output power is lower than the device's power capacity. Avoid clipping, which can damage the device. Be aware of potential damage from feedback, continuous extreme volume, continuous distorted sound, or plugging/unplugging cables while the amplifier is on.
NOTICE: To avoid malfunction/damage to the product or other property:
- Handling and maintenance: Avoid excessive dust, vibration, extreme cold or heat. Do not place vinyl, plastic, or rubber objects on the device. Clean with a dry, soft cloth; do not use thinners, solvents, or chemical-impregnated cloths. Turn on the power amplifier LAST and turn it off FIRST to avoid speaker damage. Observe amplifier's rated load impedance, especially when connecting speakers in parallel. Ensure total rated input capacity of high-impedance speakers does not exceed amplifier output power. Use a high-pass filter (80 Hz or above) for high-impedance speaker connections. Do not swing the speaker by its carrying band. Do not place the speaker face down with the grille attached. Place face down on a flat, smooth surface. Do not touch the speaker driver unit.
- Protective circuit: The speaker has an internal protection circuit. If no sound is emitted, reduce the amplifier volume immediately. Sound will return automatically in several seconds.
- About this manual: Illustrations are for explanation only. Company and product names are trademarks of their respective companies. Yamaha is not responsible for damage caused by improper use or modifications.
For the latest manual, visit the Yamaha website.
Yamaha Pro Audio global web site: http://www.yamahaproaudio.com/
Yamaha Manual Library: http://www.yamaha.co.jp/manual/
Supplied Items
Unpack and confirm all items are included:
- Speaker × 2
- Grille × 2
- O-ring × 2
- Tile Rail × 4
- Screw (4 × 8) × 12
- Cutout Template × 1
- Terminal cover × 2
- Owner’s Manual (this manual)
- Technical Specifications (English only)
Speaker cable and safety wire are not supplied.
Specifications
Specifications measured in an anechoic chamber, according to EN 54-24. Reference axis: Center of grille surface, perpendicular to grille surface. Reference plane: Grille surface, perpendicular to reference axis. Horizontal plane: Contains reference axis, perpendicular to reference plane.
| Model | VXC4-VA / VXC4-VAW |
|---|---|
| Type | Full range with back can, acoustic suspension |
| Component | 4" (10 cm) full range |
| Coverage angle (–6 dB)*1 | Horizontal: 180° (500 Hz), 180° (1 kHz), 160° (2 kHz), 85° (4 kHz) Vertical: 180° (500 Hz), 180° (1 kHz), 160° (2 kHz), 85° (4 kHz) |
| Rated impedance | 8 Ω (without transformer) 100 V line: 330 Ω (30 W), 670 Ω (15 W), 1.3 kΩ (7.5 W) 70 V line: 170 Ω (30 W), 330 Ω (15 W), 670 Ω (7.5 W), 1.3 kΩ (3.8 W) |
| Power rating NOISE (IEC, 100h)*2 | 30 W |
| PGM | 60 W |
| MAX | 120 W |
| Sensitivity*1 | 87 dB (1 W, 1 m, 100 Hz to 10 kHz pink noise) 75 dB (1 W, 4 m, 100 Hz to 10 kHz pink noise) |
| Maximum SPL*3 | 100 dB (30 W, 1 m, 100 Hz to 10 kHz pink noise at 30 W tap) 88 dB (30 W, 4 m, 100 Hz to 10 kHz pink noise at 30 W tap) 108 dB (120 W, 1 m, 100 Hz to 10 kHz pink noise at 8 Ω) 96 dB (120 W, 4 m, 100 Hz to 10 kHz pink noise at 8 Ω) |
| Frequency range (–10 dB)*1, *4 | 80 Hz – 20 kHz |
| Connector | Ceramic terminal block (3 pin) × 1 (input: +/–, Earth) |
| Applicable wire size | AWG 26–12 (4.0 mm²), wire outer diameter Ø6.5 – Ø12.5 mm |
| Transformer taps | 70 V 30 W, 15 W, 7.5 W, 3.8 W 100 V 30 W, 15 W, 7.5 W |
| Overload protection | Full-range power limiting to protect network and transducers |
| Magnetically shielded | No |
| Dust and water resistant | IP32 |
| Enclosure | Back can Steel (t=1 mm), electrodeposition coating, black Baffle ABS (UL94-5VB), black |
| Grille | Metal grille Powder coated perforated steel (t=0.6 mm), aperture ratio: 51% |
| Trim | ABS |
| Outer color (grille) | VXC4-VA Black (approximate value: Munsell N3) VXC4-VAW White (approximate value: Munsell 9.3) |
| Dimensions (with grille) | Ø225 × 232 D mm (Ø8 7/8" × 9 3/16" D) |
| Net weight (with grille, 1 piece) | 2.6 kg (5.7 lbs) |
| Cutout size | Ø186 mm (Ø7 5/16") |
| Required ceiling board thickness | 5 mm – 35 mm |
| Packaging | Packaged in pair |
| Standards | Certified to EN 54-24: 2008 0359-CPR-00405 (Loudspeaker for voice alarm systems) Certified to EN60849:1998 (Sound systems for emergency purposes) Certified to ISO 7240-24: 2010 (Sound-system loudspeaker for fire detection and fire alarm systems) In compliance with BS-5839-8: 2008 14.8 |
*1: Half-space (2π)
*2: IEC shaped pink noise with 6 dB crest factor.
*3: Calculated based on power rating and sensitivity, exclusive of power compression.
*4: When connecting with low impedance.
The dimensions are shown in “Technical Specifications”.
Connecting the Multiple Speakers
When installing multiple speakers, connect them in parallel.
CAUTION: Note the combined resistance when connecting with low impedance.
Note: For high impedance connections, refer to “Better Sound for Commercial Installations” on the Yamaha Pro Audio website: http://www.yamahaproaudio.com/global/en/training_support/better_sound/
Diagram showing parallel speaker connection:
[Diagram: From amplifier or previous speakers, wires connect to multiple speakers in parallel. Each speaker has connections for '+' and '-'. An earth connection is also shown.]
Installing the Speakers
Install speakers onto the ceiling using supplied hardware. Ensure ceiling rail strength is sufficient.
Pre-installation (Preparation of the Cable)
Use stranded wire for cables. Strip insulation as shown and connect. Do not solder stranded wires, as this can cause breakage.
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1 Cut Out a Hole in the Ceiling
Place the supplied cutout template on the ceiling and trace the circle. Ensure the correct diameter is used. Cut the hole along the traced circle. Be careful to prevent chips or powder from entering your eyes.
[Diagram: Shows a cutout template being traced on a ceiling.]
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2 Install the Tile Rails and O-ring
Insert the two tile rails through the cut hole and place them on the ceiling surface. Ensure correct orientation. Insert the folded O-ring through the cut hole and open it in the ceiling. Secure the O-ring and tile rails with two screws through the slots of both O-ring brackets.
[Diagram: Shows tile rails and O-ring being installed in the ceiling hole.]
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3 Connecting the Wiring to the Speakers
Pull wiring from the amplifier through the cut hole. Pass cables through the cable gland on the terminal cover. If necessary, open a hole in the terminal cover and attach a commercially available cable gland (e.g., AVC part no. PGB 13.5-12B).
CAUTION: Use an appropriate tool for opening holes to avoid injury.
Loosen terminal screws, insert cables into each terminal (+/–, Earth), and tighten screws securely. Pull cables to ensure they are tightly secured. Use a flat-blade screwdriver with a blade less than 3 mm (0.1 in.).
[Diagram: Shows wiring being passed through a cable gland and connected to a ceramic terminal block. Includes a close-up of the terminal connection with a screwdriver.]
Close the terminal cover and tighten screws. Tighten the cap of the cable gland.
[Diagram: Shows the terminal cover being closed and the cable gland cap being tightened.]
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4 Fix the Speakers onto the Ceiling
Attach the safety wire to the safety wire ring and connect it to an independent support point, such as a joist.
CAUTION: Always take measures to prevent the speaker from falling. Use an appropriate wire length for the speaker weight and installation conditions. If the wire is too long, it may break if the speaker falls.
Push the speaker slowly into the ceiling, taking care not to trap the cable. The Anti-Drop tabs will cross over the O-ring, holding the speaker temporarily. To release, press the Anti-Drop tabs located above the 'U' mark near the baffle edge.
[Diagram: Shows safety wire attachment and speaker being pushed into the ceiling, with Anti-Drop tabs engaging.]
Turn the screwdriver a half turn counterclockwise to loosen the attachment screw, making clamp alignment easier. Turn the screwdriver clockwise to tighten the attachment screw. The first turn aligns the clamp; subsequent turns pull the speaker into the ceiling.
CAUTION: Do not overtighten the attachment screw, as it may break. Do not turn screws other than the attachment screw to avoid speaker falling or malfunction.
[Diagram: Shows the clamp mechanism and the attachment screw being tightened.]
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5 Set the Line Voltage/Impedance and Power
Select the line voltage/impedance (100V/70V/8Ω) and power tap using the tap selector switch on the speaker's front side with a flat-blade screwdriver.
CAUTION: Do not select the “X” position. Select the 8Ω position only for 8Ω audio systems. Incorrect settings may cause speaker and amplifier malfunction. Ensure the amplifier is switched off before operating the tap selector switch.
[Diagram: Shows the tap selector switch being adjusted with a screwdriver. Example settings for 100V and 70V lines are indicated.]
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6 Attach the Grille
Fit the grille to the baffle front and turn it clockwise. Attach it firmly to prevent it from falling.
[Diagram: Shows the grille being attached to the speaker.]
The installation is complete.
Language Information
This manual is available in English and French. The French version is on the reverse side.
ZK27900
EN FR
