Definitive Technology CS-9040 Center Channel Speaker Instruction Manual

1. Product Overview

The Definitive Technology CS-9040 is a high-performance center channel speaker designed to enhance your home theater audio experience. It features an aluminum dome tweeter, two 4.5-inch BDSS (Balanced Double Surround System) mid-range drivers, and an integrated 8-inch passive bass radiator. This design ensures clear vocal reproduction, detailed sound, and impactful bass, making it suitable for demanding audio content.

The speaker's inert, resonance-free cabinet structure and acoustically transparent grille contribute to natural, uncolored sound. Its minimalist design with machined, aircraft-grade aluminum accents allows for versatile placement on a stand, shelf, or cabinet. Integrated rubber feet provide stability and protect furniture surfaces.

Figure 1: Front view of the Definitive Technology CS-9040 Center Channel Speaker with grille attached.

2. What's in the Box

• One (1) Definitive Technology CS-9040 Center Channel Speaker
• One (1) Instruction Manual (this document)

3. Setup and Placement

Proper placement and connection are crucial for optimal sound performance. The CS-9040 is designed to be the central component of your home theater system, primarily handling dialogue and central sound effects.

3.1 Placement

Position the center channel speaker directly above or below the center of your television screen. Ensure it is placed on a stable, flat surface such as a media console, shelf, or stand. The integrated rubber feet help prevent movement and protect surfaces. Avoid placing objects directly in front of the speaker grille to maintain clear sound projection.

Figure 2: Example placement of the CS-9040 center channel speaker below a television in a home theater environment.

For best results, ensure the speaker is at approximately ear level when seated in your primary listening position. If placing it on a lower surface, you may angle it slightly upwards towards the listening area.

3.2 Connection to Amplifier/Receiver

The CS-9040 is a passive speaker and requires connection to an external amplifier or A/V receiver. Use high-quality speaker wire for optimal audio transmission.

1. Identify the Center Channel Output terminals on your amplifier or A/V receiver. These are typically labeled "Center" or "C".
2. Connect the positive (+) terminal of the speaker to the positive (+) terminal of the center channel output on your amplifier.
3. Connect the negative (-) terminal of the speaker to the negative (-) terminal of the center channel output on your amplifier.
4. Ensure all connections are secure to prevent signal loss or short circuits.

Refer to your amplifier or A/V receiver's manual for specific wiring instructions and speaker configuration settings.

4. Operating Instructions

As a passive speaker, the CS-9040 does not have its own power or controls. Its operation is managed entirely by your connected A/V receiver or amplifier.

• Ensure your amplifier/receiver is powered on and correctly configured for a center channel speaker.
• Adjust volume and sound settings (e.g., equalization, crossover frequency) through your amplifier/receiver to achieve your desired audio balance.
• The speaker is designed for continuous use within its specified power handling limits. Avoid excessive volume levels that cause audible distortion, as this can damage the speaker.

5. Maintenance and Care

To ensure the longevity and optimal performance of your CS-9040 speaker, follow these maintenance guidelines:

• Cleaning the Cabinet: Use a soft, damp cloth to wipe the cabinet surfaces. Avoid harsh cleaners or abrasive materials that could damage the finish.
• Cleaning the Grille: The acoustically transparent grille can be gently vacuumed with a soft brush attachment to remove dust. If necessary, it can be carefully removed for deeper cleaning, but avoid stretching or damaging the fabric.
• Avoid Liquids: Do not expose the speaker to liquids or excessive moisture.
• Temperature and Humidity: Operate and store the speaker in a moderate environment, away from extreme temperatures and high humidity.
• Direct Sunlight: Avoid prolonged exposure to direct sunlight, which can cause fading or damage to the cabinet finish.

6. Troubleshooting

If you encounter issues with your CS-9040 speaker, consult the following common troubleshooting steps:

• No Sound:
  • Check all speaker wire connections at both the speaker and the amplifier/receiver. Ensure they are secure and correctly connected (positive to positive, negative to negative).
  • Verify that your amplifier/receiver is powered on and the correct input source is selected.
  • Confirm that the center channel output is enabled and not muted in your amplifier/receiver's settings.
• Distorted Sound:
  • Reduce the volume level on your amplifier/receiver. Excessive volume can cause distortion.
  • Check speaker wire connections for any loose strands that might be causing a short circuit.
  • Ensure the speaker is not placed too close to walls or corners, which can cause bass buildup or resonance.
  • Review your amplifier/receiver's settings, particularly crossover frequencies and equalization, to ensure they are appropriate for the speaker.
• Unbalanced Sound:
  • Check the balance settings on your amplifier/receiver.
  • Ensure the speaker is centrally located relative to your listening position.

If the issue persists after trying these steps, consult your amplifier/receiver's manual or contact Definitive Technology customer support.

7. Specifications

Figure 3: Dimensions of the Definitive Technology CS-9040 Center Channel Speaker.

8. Warranty and Support

8.1 Warranty Information

The Definitive Technology CS-9040 Center Channel Speaker comes with a Full Warranty. For specific terms, conditions, and duration of the warranty, please refer to the warranty card included with your product or visit the official Definitive Technology website.

8.2 Customer Support

For further assistance, technical support, or service inquiries, please contact Definitive Technology customer support through their official website or the contact information provided in your product packaging.