Yamaha NS-6490 Owner's Manual

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Yamaha NS-6490 Speaker Specification

The Yamaha NS-6490 is a high-performance 3-way bookshelf speaker designed to deliver superior audio quality for home entertainment systems. Measuring 16.4 x 10.5 x 13.2 inches and weighing 19.4 pounds, the speaker features a classic black finish with a removable grill, allowing it to seamlessly integrate into various home decor styles. The NS-6490 incorporates an 8-inch cone woofer, a 4-inch cone midrange, and a 0.75-inch balanced dome tweeter, which together produce a wide frequency response range from 45 Hz to 23 kHz. This configuration ensures precise sound reproduction with clear highs, robust midrange, and deep bass.

The speaker is capable of handling up to 140 watts of peak power, making it suitable for both small and large rooms. It has an impedance of 8 ohms, ensuring compatibility with a range of amplifiers and receivers. The sensitivity rating is 90 dB, allowing the speaker to efficiently convert power into sound output. The NS-6490 is magnetically shielded, preventing interference with other electronic devices and making it ideal for placement near televisions or monitors. With its versatile performance and robust build, the Yamaha NS-6490 is an excellent choice for both music enthusiasts and home theater setups, offering an immersive auditory experience.

Yamaha NS-6490 Speaker F.A.Q.

How do I connect the Yamaha NS-6490 speakers to an amplifier?

To connect the Yamaha NS-6490 speakers to an amplifier, use high-quality speaker cables. Connect the positive (+) terminal on the speaker to the positive terminal on the amplifier, and the negative (-) terminal on the speaker to the negative terminal on the amplifier. Ensure a secure connection to avoid audio issues.

What is the recommended amplifier power range for the Yamaha NS-6490?

The recommended amplifier power range for the Yamaha NS-6490 speakers is between 70 to 140 watts per channel at 8 ohms. This ensures optimal performance without damaging the speakers.

How should I position the Yamaha NS-6490 speakers for the best sound quality?

For best sound quality, position the Yamaha NS-6490 speakers at ear level when seated. Place them at equal distances from the listening position, and angle them slightly inward towards the listener. Keep them away from walls to prevent bass distortion.

What should I do if there is no sound coming from the Yamaha NS-6490 speakers?

If there is no sound, check the speaker connections to ensure they are secure. Verify that the amplifier is powered on and set to the correct input. Also, check the volume levels and try connecting the speakers to a different output to isolate the issue.

How can I clean and maintain my Yamaha NS-6490 speakers?

To clean and maintain your Yamaha NS-6490 speakers, use a soft, dry cloth to wipe the exterior. Avoid using any liquids or cleaners directly on the speaker surfaces. Regularly inspect the speaker terminals and cables for any signs of wear or corrosion.

Are the Yamaha NS-6490 speakers magnetically shielded?

Yes, the Yamaha NS-6490 speakers are magnetically shielded, allowing them to be placed near televisions or monitors without causing interference or picture distortion.

Can I use the Yamaha NS-6490 speakers for a home theater setup?

Yes, the Yamaha NS-6490 speakers can be used in a home theater setup. They can serve as front or rear surround speakers. Pair them with a compatible center channel speaker and subwoofer for a complete surround sound experience.

What is the frequency response range of the Yamaha NS-6490 speakers?

The frequency response range of the Yamaha NS-6490 speakers is 45 Hz to 23 kHz, providing a wide range of sound reproduction for both low and high frequencies.

How can I reduce the bass resonance in my Yamaha NS-6490 speakers?

To reduce bass resonance, try repositioning the speakers away from walls or corners. You can also add acoustic foam or bass traps in the room to absorb excess bass frequencies. Adjusting the equalizer settings on your amplifier may also help.

Is it possible to bi-wire the Yamaha NS-6490 speakers?

Yes, the Yamaha NS-6490 speakers support bi-wiring. To bi-wire, remove the metal jumpers between the speaker terminals and connect separate sets of speaker cables from your amplifier to the high and low frequency terminals on each speaker.