Sony SA WM40 Operating Instruction

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Sony SA WM40 Specification

The Sony SA-WM40 is a powered subwoofer designed to enhance the low-frequency performance of home audio systems. It features a 12-inch long-throw driver capable of delivering deep bass responses, making it suitable for a variety of audio applications, including home theater and music playback. The subwoofer is powered by a built-in amplifier, which outputs up to 120 watts of dynamic power, providing ample headroom for clear and powerful bass reproduction.

The SA-WM40 incorporates a bass reflex enclosure with a front-firing design, which helps to improve the efficiency of sound output and ensures more impactful bass delivery. The frequency response of the subwoofer ranges from 20 Hz to 170 Hz, allowing it to handle a wide spectrum of low-frequency sounds effectively. It includes a variable low-pass filter with an adjustable crossover range from 50 Hz to 170 Hz, enabling users to fine-tune the integration of the subwoofer with other speakers in the system.

Connectivity options include both line-level and speaker-level inputs, allowing for versatile integration with various audio systems, whether older or more modern setups. The subwoofer also features a phase switch, providing additional flexibility in optimizing the sound based on room acoustics and speaker placement. The cabinet is constructed from durable materials with a black ash finish, ensuring it blends seamlessly with most home décors. Compact dimensions make it relatively easy to place within a room, while a removable grille offers the option to expose the driver for an aesthetic preference. Overall, the Sony SA-WM40 is a robust and versatile subwoofer designed to deliver powerful bass performance in a user-friendly package.

Sony SA WM40 F.A.Q.

How do I connect the Sony SA-WM40 subwoofer to my receiver?

To connect the Sony SA-WM40 to your receiver, use an RCA cable to connect the subwoofer output on your receiver to the line input on the subwoofer. Ensure both devices are powered off during the connection process.

What is the best way to position the SA-WM40 for optimal sound?

Place the SA-WM40 in a corner of the room for enhanced bass response. Experiment with different locations to find the best sound, and consider using bass traps if needed.

How can I reduce unwanted vibrations from the subwoofer?

To reduce vibrations, place the subwoofer on a solid surface and use isolation pads or a subwoofer isolation platform to minimize contact with the floor.

What should I do if there is no sound coming from my SA-WM40?

Check all connections to ensure they are secure, verify that the subwoofer and receiver are powered on, and confirm that the subwoofer is not muted or set to a very low volume.

How do I adjust the crossover frequency on the Sony SA-WM40?

Use the crossover frequency knob located on the back of the SA-WM40 to adjust the frequency. Set it according to your speaker specifications for seamless integration between the subwoofer and main speakers.

What maintenance is required for the Sony SA-WM40?

Regularly dust the exterior with a soft cloth, ensure the vents are unobstructed, and periodically check connections for a secure fit. Avoid exposing the subwoofer to moisture.

Can I use the SA-WM40 with a soundbar system?

Yes, as long as your soundbar system has a compatible subwoofer output. Use an RCA cable to connect the subwoofer to the soundbar's subwoofer output.

What should I do if the SA-WM40 automatically powers off?

Check the auto power feature; if enabled, the subwoofer may power down when no signal is detected. Adjust the sensitivity or disable the feature if necessary.

How do I replace the fuse in the SA-WM40?

Unplug the subwoofer, locate the fuse holder near the power cord socket, remove the old fuse, and replace it with a new one of the same rating. Ensure the subwoofer is disconnected from power before performing this task.

What should I do if the bass sounds distorted at high volumes?

Lower the volume to avoid distortion, and check the crossover settings. Ensure the subwoofer is not overdriven and that the amplifier is not clipping.