YAMAHA NS-SW40 (01) PDF DOCUMENT

To ensure the best performance and safety, please follow these precautions:

1. Read the owner’s manual carefully and keep it for future reference.

2. Install the speakers in a cool, dry, clean place away from windows, heat sources, excessive vibration, dust, moisture, or cold. Avoid sources of electrical humming like transformers and motors. Do not expose the speakers to rain or water.

3. To prevent warping or discoloration, do not expose the speakers to direct sunlight or excessive humidity.

4. Avoid installing the speakers where foreign objects may fall on them or where they may be exposed to liquid dripping or splashing.

5. Do not place objects like other components, burning objects (candles), or containers of liquid on top of the speakers.

6. Ensure stable placement to prevent the speakers from being knocked over. Stable placement also improves sound performance.

7. Placing the speakers on the same shelf as a turntable can cause feedback.

8. If you notice distortion, reduce the volume on your amplifier. Never drive your amplifier into “clipping,” as this may damage the speakers.

9. If using an amplifier with a rated output power higher than the speaker’s nominal input power, be careful not to exceed the speaker’s maximum input.

10. When cleaning the unit, use a clean, dry, and soft cloth.

11. Do not attempt to modify or fix the speakers. The cabinet should never be opened. Contact qualified Yamaha service personnel if service is needed.

12. Before assuming the speakers are faulty, read the “Troubleshooting” section.

13. Secure placement or installation is the owner’s responsibility. Yamaha is not liable for accidents caused by improper placement or installation.

Please observe the following precautions specifically for the YAMAHA NS-SW40 subwoofer:

1. Do not operate the unit upside down, as it may overheat and cause damage.

2. Avoid using excessive force on switches, controls, or connection wires. When moving the unit, always disconnect the power plug and other wires first.

3. Never put a hand or a foreign object into the port on the right side of the unit. Do not hold the port when moving the unit to prevent injury or damage.

4. The unit has a built-in amplifier and radiates heat from the rear panel. Place it away from walls, allowing at least 20 cm (8″) of space above, behind, and on both sides to prevent fire or damage. Do not place the unit with the rear panel facing down.

5. If using a humidifier, ensure enough space around the unit to avoid condensation, which could cause fire, damage, or electric shock.

6. Do not cover the rear panel with items like newspapers or curtains, as this obstructs heat radiation and can cause a fire if the internal temperature rises.

7. Do not plug the unit into a wall outlet until all connections are complete.

8. Use only the voltage specified on the rear panel. Using a higher voltage is dangerous and may cause damage, fire, or injury.

9. Super-bass sound may cause a turntable to generate audio feedback. If this occurs, move the subwoofer away from the turntable.

10. The unit can be damaged if certain sounds (e.g., 20 Hz-50 Hz sine waves from a test disc) are continuously output at high volume. Reduce the volume level to prevent damage.

11. If you hear distorted noise (unnatural “rapping” or “hammering”), reduce the volume. Extremely loud, low-frequency sounds from movie soundtracks or music can damage the unit.

12. Vibration from super-bass sound may distort TV images. If this happens, move the unit away from the TV.

13. When disconnecting the power cord, grasp the plug, not the cord.

14. Disconnect the AC power plug from the wall outlet if you plan not to use the unit for a long period.

15. Install the unit near a wall outlet where the AC power plug can be easily reached.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

For China, Korea, Asia, and General models, the voltage selector switch on the rear panel of the YAMAHA NS-SW40 must be set to your local main voltage BEFORE plugging the unit into the AC main supply. The available voltages are 110-120V / 220-240V AC, 50/60 Hz.

The speaker is constructed with the majority of its weight in the upper portion, making it susceptible to falling over if not stabilized properly. If a speaker tips over, it could be damaged, damage other property, or cause personal injury.

For safe and proper use:

• Position the speaker on a solid, level, smooth, and low surface.

• Do not push, apply pressure to the side, or lean objects against the side of the speaker.

• Do not sit on or set objects on top of the speaker.

Vibrations from earthquakes or other activities may cause the speaker to fall. For safety, using commercially available products like metal fittings or chains to increase stability is recommended.

The package contains the following items:

• Surround speaker (NS-B40) x2

• Center speaker (NS-C40) x1

• Subwoofer (NS-SW40) x1

• Front speaker (NS-F40) x2 (comes in Top, Bottom, and Base parts for assembly)

• Non-skid pads (24 pcs.) x1 (for center and surround speakers)

• Screw x10 (for assembling the front speakers)

• Subwoofer cable 5 m (16 ft.) x1

• Speaker cable 24.5 m (80 ft.) x1 (to be cut into 5 lengths)

Before and during assembly, please follow these cautions:

• Assemble the speakers on a soft, level surface, like a carpet.

• Do not grab the grilles on the front panel when handling the speakers, as they may be crushed.

• Use only the specified screws supplied in the package.

• Keep screws out of reach of children to prevent accidental swallowing.

• Tighten the screws firmly to ensure the front speaker is not shaky.

• Do not insert your fingers into gaps between movable surfaces to avoid pinching injuries.

• You cannot use only the speaker top. You must assemble the speaker top, bottom, and base together.

You will need a Phillips (+) screwdriver with a shaft length of 80 mm (3-1/8″) or more.

1. Attach the Base to the Bottom:

1. Insert the three projections on the Base into the three holes on the lower end of the Bottom section. Ensure the notch on the Base faces the same direction as the rear panel of the Bottom (which has a groove for the speaker cable).

2. Insert four screws from the underside of the Base. Finger-tighten each screw alternately, then tighten all of them securely. You can use the packing polystyrene foam to support the Bottom during this step.

2. Attach the Top to the Bottom:

1. Place the assembled Bottom and Base on the floor. Place the Top section on the Bottom section so that it sits slightly toward the front (by approx. 15 mm or 5/8″).

2. Slide the Top slowly toward the rear until it stops and the rear panels of the Top and Bottom sections align.

3. Use a Phillips screwdriver to tighten the supplied screws to attach the Bottom to the Top. Rotate the screws approximately twelve times clockwise to secure them.

Proper speaker positioning is very important for overall sound quality. Place the speakers in locations that will optimize the sound quality at your listening position.

• Front speakers (NS-F40): Place the two front speakers on the left and right sides of the TV, facing directly forward.

• Center speaker (NS-C40): Place the center speaker centrally between the front speakers, facing directly forward.

• Surround speakers (NS-B40): Place the left and right surround speakers behind your listening position, facing slightly inward.

Note: Placing speakers too close to a CRT-type TV may impair picture color or cause buzzing. Move the speakers at least 20 cm (8″) away from the TV. This is not an issue with LCD and plasma TVs.

The position of the subwoofer is not as critical as the other speakers because sub-bass sounds are not very directional. The ideal placement is on the outside of either the right or the left front speaker.

If the subwoofer is placed directly facing a wall and your listening position is in the center of the room, you may not get enough bass sound. This is due to “standing waves” forming between the parallel walls and canceling out the bass. In this situation, position the subwoofer at an angle to the wall. It may also help to break up parallel wall surfaces by placing bookshelves or other furniture along them.

Follow these steps to wall-mount the speakers:

1. Install commercially available screws into a solid wall or wall support. Use 3.5 to 4 mm (1/8″) diameter self-tapping screws. The screws should protrude from the wall as shown in the manual illustrations.

2. Hang each speaker by its keyhole slots onto the protruding screws.

Note: Make sure the shaft of the screw is seated in the narrow part of the keyhole slot to prevent the speaker from falling.

• Do not mount speakers on thin plywood or a wall with a soft surface material, as the screws may pull out and the speakers could fall.

• Do not affix speakers to a wall using nails, adhesives, or unstable hardware. Long-term use and vibration can cause them to fall.

• To avoid tripping hazards, affix loose speaker cables to the wall.

• Mount the speakers in a location where they are unlikely to cause injury to an individual’s head.

• If you are unsure of a safe installation method, consult a professional installer or a building contractor.

1. Cut the included 24.5-meter (80 ft.) speaker cable to make five cables of suitable lengths for the two front, one center, and two surround speakers.

2. Remove about 10 mm (3/8″) of insulation from the end of each speaker cable.

3. Twist the bare wires tightly so the individual strands are not splayed.

Note:

• Keep speaker cables as short as possible and do not bundle or roll up excess cable.

• Be careful not to trip on the speaker cables.

• Be careful not to injure yourself while preparing the cables.

1. Press and hold the terminal tab (positive [+] or negative [-]).

2. Insert the bare wire into the terminal opening.

3. Release the tab, ensuring it closes securely on the bare wire, not the insulation.

4. Test the connection by pulling gently on the cable.

Note:

• Ensure the bare wires of the positive and negative cables do not touch each other, as this could damage the speaker or amplifier.

• If connections are faulty, you will hear no sound from the speakers.

1. After connecting the cable to the speaker terminals, fit the cable into the groove on the rear panel of the Bottom section of the speaker.

2. Pass the cable behind the four projections inside the groove to hold it in place.

3. Once the cable is fitted down to the Base, pass it through the hole in the Base.

4. Gently pull the cable from the underside of the Base and pass it through the notch on the Base.

Connect each speaker to the appropriate speaker terminals on your amplifier using the prepared cables. Ensure you connect the speakers with the correct polarity: positive (+) terminals to positive (+) terminals, and negative (-) terminals to negative (-). If the polarity is crossed, the sound will be unnatural and lack bass.

In your AV receiver’s speaker size settings, specify small (or “S”) for all of the NS-PA40 speakers.

If connecting the YAMAHA NS-SW40 subwoofer to a Yamaha DSP amplifier or AV receiver, connect it to the SUBWOOFER or LOW PASS output.

Once you have completed all of the speaker and subwoofer connections, plug the YAMAHA NS-SW40 subwoofer, amplifier, and your other AV components into suitable AC wall outlets. Remember to remove any protective sheets from the unit before use.

The rear panel of the YAMAHA NS-SW40 has the following controls:

1. Power indicator: Lights up when the POWER switch is set to ON; goes off when the POWER switch is set to OFF.

2. INPUT jack: Input for connecting the line-level subwoofer output on your amplifier.

3. VOLUME control: Adjusts the subwoofer volume. Turn clockwise to increase and counterclockwise to decrease.

4. POWER switch: Set to ON to turn the subwoofer on, and OFF to turn it off.

5. VOLTAGE SELECTOR (China, Korea, Asia, and General models): Ensures the unit is set to the correct voltage for your area (110-120/220-240 V AC, 50/60 Hz). Warning: Disconnect the power cable before changing the VOLTAGE SELECTOR setting.

The first time you use the subwoofer, you need to set the volume balance between it and the front speakers. Follow these steps:

1. Turn on your other AV components.

2. Set the subwoofer’s VOLUME control to minimum (0).

3. Set the subwoofer’s POWER switch to ON. The power indicator on the rear panel will light up.

4. Play an audio source that contains low-frequency bass sounds. Set your amplifier’s volume control to a suitable level.

5. Turn the subwoofer’s VOLUME control up gradually until you achieve a good balance between the subwoofer and the other speakers.

Once set, you can leave the subwoofer’s VOLUME control as is and use your amplifier’s volume to adjust the entire system. If you replace the front speakers, you will need to re-adjust the subwoofer’s volume.

Issue	Possible cause	Remedy
There’s no sound.	The speaker cables are not connected properly.	Make sure the speaker cables are connected properly.
The sound is very quiet.	The speaker cables are not connected properly.	Make sure the speaker cables are connected properly: L (left) to L, R (right) to R, “+” to “+” and “-” to “-”.

Issue	Possible cause	Remedy
The POWER switch is set to ON but the subwoofer doesn’t work.	The power cable is not connected properly.	Set the POWER switch to OFF, then make sure the power cable is connected properly.
There’s no sound.	The VOLUME control is set to 0.	Turn up the VOLUME control.
	The subwoofer cable is not connected properly.	Make sure the subwoofer cable is connected properly.
The subwoofer is too quiet.	The source material doesn’t contain much bass.	Try playing source material that contains more bass.
	Bass sounds are being cancelled out by standing waves.	Reposition the subwoofer, or break up parallel wall surfaces by placing bookshelves or other large objects along the wall.

Type

• NS-F40: 2-way bass reflex, non-magnetic shielding type

• NS-C40: Full range acoustic suspension, non-magnetic shielding type

• NS-B40: Full range bass reflex, non-magnetic shielding type

Driver

• NS-F40: Woofer 7 cm (2-3/4″) cone type x2, Tweeter 2.5 cm (1″) balanced dome type

• NS-C40: 7 cm (2-3/4″) cone type

• NS-B40: 7 cm (2-3/4″) cone type

Nominal input power: 30 W

Maximum input power: 100 W

Impedance: 6 Ω

Frequency response

• NS-F40: 67 Hz–30 kHz (-10 dB)

• NS-C40: 70 Hz–25 kHz (-10 dB)

• NS-B40: 50 Hz–25 kHz (-10 dB)

Sensitivity

• NS-F40: 85 dB/2.83 V, 1 m

• NS-C40: 84 dB/2.83 V, 1 m

• NS-B40: 83 dB/2.83 V, 1 m

Dimensions (W x H x D)

• NS-F40: 230 x 1000 x 230 mm (9″ x 39-3/8″ x 9″) (with base)

• NS-C40: 276 x 111 x 118 mm (10-7/8″ x 4-3/8″ x 4-5/8″)

• NS-B40: 112 x 176 x 116 mm (4-3/8″ x 6-7/8″ x 4-5/8″)

Weight

• NS-F40: 2.8 kg (6.2 lbs.)

• NS-C40: 0.73 kg (1.61 lbs.)

• NS-B40: 0.59 kg (1.30 lbs.)

Type: Advanced Yamaha Active Servo Technology II

Driver: 16 cm (6-1/2″) cone woofer, non-magnetic shielding type

Amp output power: 50 W (100 Hz, 5 Ω, 10% T.H.D)

Amp dynamic power: 100 W, 5 Ω

Input impedance: 12 kΩ (INPUT 1P RCA pin jack)

Frequency response: 30 Hz–200 Hz

Input sensitivity: 50 mV (50 Hz, 50 W/5 Ω) (INPUT 1P RCA pin jack)

Power supply

• U.S.A. and Canada models: AC 120 V, 60 Hz

• Australia model: AC 240 V, 50 Hz

• U.K. and Europe models: AC 230 V, 50 Hz

• China, Asia, and General models: AC 110-120/220-240 V, 50/60 Hz

Dimensions (W x H x D): 290 x 292 x 327 mm (11-3/8″ x 11-1/2″ x 12-7/8″)

Weight: 8.0 kg (17.6 lbs.)