NS-IW660 - Loudspeaker YAMAHA - Free user manual and instructions
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| Product Type | In-wall Loudspeaker |
| Brand | Yamaha |
| Model | NS-IW660 |
| Speaker Type | 2-way Bass Reflex |
| Woofer Size | 6.5 inches (16.5 cm) |
| Tweeter Size | 1 inch (2.5 cm) Soft Dome |
| Impedance | 8 ohms |
| Sensitivity | 88 dB (2.83V/1m) |
| Frequency Response | 50 Hz - 20 kHz |
| Recommended Amplifier Power | 20 - 100 Watts RMS |
| Dimensions (H x W x D) | 11.9 x 7.5 x 3.6 inches (302 x 190 x 91 mm) |
| Cutout Dimensions (H x W) | 10.5 x 6.5 inches (267 x 165 mm) |
| Mounting Depth | 3.5 inches (89 mm) |
| Weight | 4.2 lbs (1.9 kg) |
| Color | White (Paintable Grille) |
| Warranty | 5 Years Limited |
| Installation Type | In-wall with dogleg clamps |
| Cleaning | Wipe with dry cloth; avoid liquids |
Frequently Asked Questions - NS-IW660 YAMAHA
How do I install the NS-IW660 speakers?
Use a template to cut a hole in drywall following the cutout dimensions. Connect speaker wires to the terminals, insert the speaker, and tighten the dogleg clamps with a screwdriver until snug.
What type of amplifier should I use?
Use an amplifier rated between 20-100 Watts RMS at 8 ohms. The NS-IW660 has a sensitivity of 88 dB, so it works well with most home theater receivers.
Can I paint the grille to match my wall?
Yes, the grille is paintable. Remove the grille, spray lightly with thin paint, and allow to dry completely before reattaching. Do not block the perforations.
What is the recommended wire gauge?
Use 16-gauge or thicker speaker wire for runs up to 50 feet. For longer runs, use 14-gauge or 12-gauge to minimize signal loss.
Are the NS-IW660 speakers magnetically shielded?
No, these speakers are not designed for placement near CRT screens. However, they are safe for use with modern LCD/OLED displays as interference is minimal.
How do I adjust the tweeter level?
There is a +3 dB / 0 dB / -3 dB switch located on the front baffle behind the grille. Use a small screwdriver to adjust based on room acoustics.
What is the frequency response of the NS-IW660?
The frequency response is 50 Hz - 20 kHz. For deeper bass, consider adding a subwoofer, as in-wall speakers have limited low-end extension.
Can I use these speakers outdoors or in bathrooms?
No, the NS-IW660 is designed for indoor use only. Exposure to moisture or extreme temperatures can damage the speaker.
How do I clean the speaker grille?
Remove the grille and gently vacuum with a brush attachment. If needed, wipe with a slightly damp cloth and dry immediately. Do not use abrasive cleaners.
What is the warranty period for the NS-IW660?
Yamaha provides a 5-year limited warranty covering manufacturing defects. Proof of purchase is required. Normal wear and tear or improper installation are excluded.
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USER MANUAL NS-IW660 YAMAHA
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Product information
Brand : YAMAHA
Model : NS-IW660
Category : Loudspeaker