What to do if my Yamaha NS-SW700 Subwoofer has no sound?
If your Yamaha Subwoofer isn't producing any sound, there are a couple of things to check: * First, make sure the volume isn't set to the minimum. Try raising the volume. * Also, verify that the speaker cables are securely connected.
Why Yamaha Subwoofer does not turn on automatically?
If your Yamaha Subwoofer does not turn on automatically, verify that the POWER switch is in the ON position. Also, ensure the STANDBY/ON button is set to ON, and the AUTO STANDBY switch is set to either “HIGH” or “LOW”. If the input signal is too low, set the AUTO STANDBY switch to “HIGH”.
Why is the sound level too low on my Yamaha NS-SW700 Subwoofer?
If your Yamaha Subwoofer sound level is too low, ensure the speaker cables are correctly connected (L to L, R to R, “+” to “+” and “–” to “–”). Also, verify that the PHASE switch is set correctly. If you are playing a source sound with little bass, play a source with bass frequencies or set the HIGH CUT control higher. Finally, reposition the subwoofer or break up parallel surfaces in the room.
How to fix Yamaha NS-SW700 if no power?
If your Yamaha Subwoofer isn't getting power even when the STANDBY/ON button is ON, try these steps: * Make sure the power plug is securely connected. * Also, check that the POWER switch is set to the ON position.
How to fix Yamaha NS-SW700 if the power is not supplied?
If power is not supplied to your Yamaha Subwoofer, even when the STANDBY/ON button is in the ON position, ensure the power plug is securely connected. Also, check that the POWER switch is set to the ON position.
Why Yamaha NS-SW700 turns on unexpectedly?
If your Yamaha Subwoofer turns on unexpectedly, it might be due to noise from external appliances. Try moving the subwoofer away from these appliances and/or repositioning the connected speaker cables. Alternatively, set the AUTO STANDBY switch to the “OFF” position.
Why Yamaha Subwoofer does not turn into the standby mode automatically?
If your Yamaha Subwoofer does not turn into standby mode automatically, it may be due to noise from external appliances activating it. Move the subwoofer farther from such appliances and/or reposition the speaker cables. Alternatively, set the AUTO STANDBY switch to the “OFF” position. You can also try setting the AUTO STANDBY switch to the “HIGH” or “LOW” position.
What to do if Yamaha Subwoofer turns on unexpectedly?
If your Yamaha Subwoofer unexpectedly turns on, it might be due to noise from nearby appliances. Try moving the subwoofer away from these appliances or repositioning the connected speaker cables. Alternatively, set the AUTO STANDBY switch to the “OFF” position.
What to do if Yamaha NS-SW700 turns into standby mode unexpectedly?
If your Yamaha Subwoofer unexpectedly enters standby mode, it could be due to a low input signal level. Try setting the AUTO STANDBY switch to the “HIGH” position.
Why Yamaha NS-SW700 Subwoofer does not turn into standby mode automatically?
If your Yamaha Subwoofer is not automatically entering standby mode, it could be due to external noise activating it. Move the subwoofer away from other appliances or reposition the speaker cables. As an alternative, you can set the AUTO STANDBY switch to the “OFF” position. Also, ensure the AUTO STANDBY switch is set to the “HIGH” or “LOW” position.
Instructions for setting the voltage selector switch based on region.
How to connect the subwoofer to amplifier line output (pin jack) terminals.
Instructions for connecting via amplifier speaker output terminals.
Details on connecting INPUT/OUTPUT terminals and plugging into AC outlet.
Instructions for setting the voltage selector switch based on region.
How to connect the subwoofer to amplifier line output (pin jack) terminals.
Instructions for connecting via amplifier speaker output terminals.
Details on connecting INPUT/OUTPUT terminals and plugging into AC outlet.
This document describes the Yamaha NS-SW700 Subwoofer, a device designed to enhance the bass response of an audio system. It incorporates Yamaha's Advanced Active Servo Technology II and QD-Bass Technology for high-quality, super-bass sound.
The NS-SW700 Subwoofer is a powered subwoofer system that reproduces low-frequency sounds, adding depth and impact to audio. It can be integrated into an existing audio system by connecting to either the amplifier's speaker terminals or line output (pin jack) terminals.
Advanced Yamaha Active Servo Technology II (YST II): This technology provides powerful, high-quality bass reproduction. It utilizes a direct connection between the amplifier and speaker, allowing for accurate signal transmission and precise speaker control. YST II employs negative-impedance drive and constant-current drives to create more resonant energy, effectively making the speaker cabinet volume and port act as an "air woofer." This allows for deep bass reproduction from smaller cabinets and offers stable performance with clear bass reproduction.
QD-Bass Technology: This unique Yamaha technology (Quatre Dispersion Bass) efficiently radiates sound in four horizontal directions, contributing to the subwoofer's overall bass performance.
Automatic Power-Switching Function: This feature allows the subwoofer to automatically switch between power-on and standby modes. If no input signal is detected for 7 or 8 minutes, the subwoofer enters standby (power indicator lights red). When a bass signal below 200 Hz is detected, it automatically powers on (power indicator lights green). This function is active when the POWER switch and STANDBY/ON button are set to ON. The sensitivity of this function can be adjusted using the AUTO STANDBY switch (HIGH/LOW/OFF).
B.A.S.S. (Bass Action Selector System) Button: This button allows users to select a bass effect suitable for the audio source.
HIGH CUT Control: This control adjusts the high-frequency cut-off point. Frequencies higher than the selected point are cut off, meaning they are not output by the subwoofer. This allows users to match the subwoofer's sound to their front speakers.
PHASE Switch: This switch allows users to reverse the phase (REV) or keep it normal (NORM). Depending on the speaker system and listening conditions, adjusting this switch can improve sound quality.
VOLUME Control: This control adjusts the overall volume level of the subwoofer.
POWER Switch: This switch turns the main power supply to the subwoofer ON or OFF.
STANDBY/ON Button: When the POWER switch is ON, this button toggles the subwoofer between power-on mode (power indicator green) and standby mode (power indicator off). In standby mode, the subwoofer still consumes a small amount of power.
INPUT/OUTPUT Terminals:
Placement: For optimal effect, it is recommended to place one subwoofer on the outside of either the right or left front speaker. If using two subwoofers, place them on the outside of each front speaker. Placing the subwoofer at an oblique angle to a wall can prevent "standing waves" from canceling bass sounds, which might occur if placed directly facing a wall. Breaking up parallel surfaces with bookshelves can also help.
Connections: The subwoofer can be connected to an amplifier using either line output (pin jack) terminals or speaker output terminals.
Cable Connections: Use high-quality shielded cables. Ensure correct polarity (+ to + and – to –) for speaker cables. Keep speaker cables as short as possible and avoid bundling or rolling excess cabling. Banana plug connections are possible for U.S.A., Canada, and Australia models.
Initial Setup:
Automatic Power-Switching Adjustment:
Voltage Selector (Asia and General models only): Before plugging in, ensure this switch on the rear panel is set to the correct local main voltage (110/120/220/230-240V AC, 50/60 Hz). Always unplug the subwoofer before adjusting this switch.
Cleaning: Do not use chemical solvents to clean the unit, as this may damage the finish. Use a clean, dry cloth.
Placement Considerations:
Troubleshooting: The manual includes a troubleshooting section to address common operating errors. If issues persist, disconnect the power cord and contact an authorized Yamaha dealer or service center.
Safety Precautions:
FCC Information (for US customers): Do not modify the unit. Use only high-quality shielded cables. The product complies with FCC Regulations, Part 15 for Class "B" digital devices. If interference occurs, try relocating the product or affected device, using different power outlets, installing AC line filters, or reorienting radio/TV antennas.
U.K. Customers: Ensure a suitable 3-pin plug is fitted if necessary, following the specified wiring code (Blue: NEUTRAL, Brown: LIVE).
Canadian Customers: Match the wide blade of the plug to the wide slot and fully insert to prevent electric shock.
General| Subwoofer type | Active subwoofer |
|---|---|
| Number of subwoofers | 1 |
| Subwoofer frequency range | 20 - 160 Hz |
| Subwoofer driver diameter (imperial) | 10 \ |
| Phase control | Yes |
| Product color | White |
Weight and Dimensions| Subwoofer width | 406 mm |
|---|---|
| Subwoofer height | 445 mm |
| Subwoofer weight | 21000 g |
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