Contents

IMPORTANT SAFETY INSTRUCTIONS
CAUTION: Read this before operating your unit
CONTENTS
FEATURES
SUPPLIED ACCESSORIES
PLACEMENT
CONNECTIONS
- Connecting to line output (pin jack) terminals of the amplifier
  - Using one subwoofer
  - Using two subwoofers
- Connecting to speaker output terminals of the amplifier
  - Using one subwoofer (with speaker cables)
  - Using two subwoofers (with speaker cables)
  - Using one subwoofer (with speaker cables)
  - Using two subwoofers (with speaker cables)
- Connecting to the INPUT1/OUTPUT terminals of the subwoofer
  - Before connecting
  - How to connect:
- Plug in the subwoofer to the AC outlet
CONTROLS AND THEIR FUNCTIONS
AUTOMATIC POWER-SWITCHING FUNCTION
- Changing the AUTO STANDBY setting
ADJUSTING THE SUBWOOFER BEFORE USE
- Frequency characteristics
  - EX.1 When combined with a 4 or 5 (10 cm or 13 cm) acoustic suspension, 2 way system front speakers
  - EX.2 When combined with an 8 or 10 (20 cm or 25 cm) acoustic suspension, 2 way system front speakers
ADVANCED YAMAHA ACTIVE SERVO TECHNOLOGY II
TROUBLESHOOTING
SPECIFICATIONS

Yamaha YST-SW515 Owner's Manual

Pages 20

Year 2004

Language(s)

of 20

Yamaha YST-SW515 Subwoofer Specification

The Yamaha YST-SW515 Subwoofer is a high-performance audio device designed to enhance the low-frequency audio experience in home theater and music systems. It features Advanced Yamaha Active Servo Technology (Advanced YST), which combines negative-impedance and constant-current principles to drive the speaker cone with tighter control, resulting in more accurate and deep bass reproduction. The subwoofer is equipped with a powerful 250-watt amplifier, providing robust sound output suitable for various room sizes.

A key feature of the YST-SW515 is its 10-inch multi-range driver with a front-firing design, which allows for flexible placement and optimal sound dispersion. The subwoofer also includes a frequency response range of 20Hz to 160Hz, ensuring it can handle the most demanding audio signals with precision. Additionally, it offers a continuously variable high-cut filter, adjustable from 40Hz to 140Hz, allowing users to seamlessly integrate the subwoofer with other speakers in the system for a balanced audio output.

The subwoofer supports both line-level and speaker-level inputs, providing versatile connectivity options for compatibility with a wide range of audio equipment. The inclusion of a phase switch further enhances integration by allowing phase alignment with other speakers, ensuring coherent sound staging. The YST-SW515 also features a signal sensing circuit, enabling automatic power on/off based on the presence of an audio signal, contributing to energy efficiency.

With its compact design and elegant black finish, the Yamaha YST-SW515 blends easily with any home decor while delivering powerful and articulate bass performance. The unit's construction is robust, designed to minimize vibrations and ensure long-lasting durability, making it a reliable choice for audiophiles and home theater enthusiasts seeking an immersive audio experience.

Yamaha YST-SW515 Subwoofer F.A.Q.

How do I properly connect my Yamaha YST-SW515 Subwoofer to my home theater system?

To connect the Yamaha YST-SW515 Subwoofer, use a subwoofer cable to connect the subwoofer output of your AV receiver to the input on the subwoofer. Make sure the subwoofer is powered off during this process.

What settings should I use for the best sound quality on my YST-SW515?

Set the crossover frequency to match your main speakers, typically between 80-120 Hz. Adjust the volume to blend with your speakers and set the phase switch to the position that provides the most bass.

Why is my Yamaha YST-SW515 Subwoofer not producing sound?

Ensure the subwoofer is powered on and connected properly. Check the cable connections and verify that the subwoofer output on the receiver is enabled. Also, confirm the subwoofer volume is set above minimum.

How can I reduce the humming noise from my YST-SW515 Subwoofer?

To reduce humming, check for ground loops by ensuring all connected devices share the same power outlet. Use a shielded cable and avoid running audio cables parallel to power lines.

What maintenance is required for my Yamaha YST-SW515 Subwoofer?

Regularly dust the exterior with a soft, dry cloth. Avoid using cleaning solvents or water. Ensure the ventilation openings are not obstructed. Periodically check all connections for wear.

How do I perform a factory reset on my YST-SW515 Subwoofer?

The Yamaha YST-SW515 does not feature a factory reset option. Adjust all controls manually to restore default settings.

Can I place my YST-SW515 Subwoofer anywhere in the room?

While the subwoofer can be placed anywhere, optimal placement is near the front speakers or in a corner to enhance bass response. Experiment with placement to find the best sound in your room.

Is it normal for my YST-SW515 Subwoofer to get warm during use?

Yes, it is normal for the subwoofer to get warm during use. Ensure it has adequate ventilation and is not covered or obstructed to prevent overheating.

How do I adjust the phase on my Yamaha YST-SW515 Subwoofer?

The phase switch can be set to 0° or 180°. Listen to the subwoofer from your usual listening position and select the setting that provides the most coherent bass response.

What should I do if my YST-SW515 Subwoofer has intermittent sound issues?

Check all cable connections for secure fitting and inspect them for damage. Ensure that the receiver settings correctly output to the subwoofer and that there are no loose speaker wires.