Onkyo D 407M Instruction Manual

Pages 8

Year 2004

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of 8

Onkyo D 407M Specification

The Onkyo D-407M is a meticulously engineered bookshelf speaker system designed to deliver premium audio quality for discerning listeners. Each speaker features a robust two-way configuration, comprising a 25mm soft-dome tweeter and a 16cm A-OMF cone woofer, providing a wide frequency range and precise sound reproduction. The tweeter is designed to handle high frequencies with clarity, ensuring crisp and detailed treble, while the woofer is optimized for rich, dynamic midrange and bass performance. The cabinet is constructed from sturdy MDF with a natural wood finish, contributing not only to its aesthetic appeal but also to reducing unwanted resonance and distortion. Internally, the D-407M employs a finely tuned crossover network that seamlessly integrates the sonic output of the tweeter and woofer, resulting in a balanced and cohesive soundstage. With a nominal impedance of 6 ohms and a sensitivity rating of 87 dB, the speakers are compatible with a wide range of amplifiers, making them versatile for various audio setups. The D-407M's sleek design and high-quality components make it an excellent choice for enhancing home audio systems, whether for music listening or home theater applications. The speakers' dimensions and weight are optimized for easy placement on shelves or stands, allowing them to fit comfortably in different room environments without dominating the space. Overall, the Onkyo D-407M is a testament to Onkyo's commitment to high-fidelity sound and craftsmanship, offering a blend of acoustic precision and elegant design that caters to audiophiles and casual listeners alike.

Onkyo D 407M F.A.Q.

How do I properly set up my Onkyo D 407M speakers for optimal sound quality?

To set up your Onkyo D 407M speakers, ensure they are positioned at ear level for seated listeners, ideally forming an equilateral triangle with the listening position. Keep them away from walls to reduce bass resonance and angle them slightly towards the listener for better stereo imaging.

What should I do if there is no sound coming from my Onkyo D 407M speakers?

First, check the connections between the speakers and the amplifier, ensuring cables are securely connected. Verify that the amplifier is powered on and set to the correct input. Test the speakers with a different audio source to rule out issues with the original source.

How can I clean my Onkyo D 407M speakers without damaging them?

Use a soft, dry cloth to gently wipe the exterior of the speakers. Avoid using liquid cleaners or abrasive materials. For the speaker grilles, a vacuum with a brush attachment can help remove dust and debris.

What is the recommended amplifier power for the Onkyo D 407M speakers?

The Onkyo D 407M speakers are compatible with amplifiers ranging from 20 to 100 watts per channel. Ensure your amplifier's power output is within this range to avoid damaging the speakers.

How do I troubleshoot distortion issues with my Onkyo D 407M speakers?

Check that the speaker wires are properly connected and not frayed. Ensure the amplifier's volume is not set too high, as this can cause distortion. Try playing audio from a different source to determine if the issue lies with the initial input.

What maintenance is required to keep my Onkyo D 407M speakers in good condition?

Periodically inspect the speaker cables and connections for wear and tear. Dust the speakers regularly and store them in a dry environment to prevent moisture damage. Avoid exposing them to direct sunlight for extended periods.

Can I use banana plugs with the Onkyo D 407M speaker terminals?

Yes, the Onkyo D 407M speakers support banana plugs. They can provide a secure and convenient connection between the speakers and your amplifier.

What should I do if the tweeter on my Onkyo D 407M speaker is not working?

Check the speaker cables to ensure proper connection. Test the speaker with a different amplifier channel or another speaker to verify the issue. If the problem persists, the tweeter may need to be repaired or replaced by a professional.

How do I adjust the crossover settings for my Onkyo D 407M speakers?

The Onkyo D 407M speakers are passive and rely on the amplifier or receiver for crossover settings. Refer to your amplifier's manual to adjust crossover frequencies, ensuring that they match the speaker's specifications for optimal performance.

Are there any specific room conditions that can enhance the performance of Onkyo D 407M speakers?

For best performance, place the speakers in a room with minimal echo, using rugs or curtains to absorb sound reflections. Avoid placing them in corners, as this can cause excessive bass buildup. Experiment with positioning to find the ideal soundstage.