Brand: YAMAHA
Category: Audio/Video
Document Type: Manual
Language: EN
Manual for NS-A426
Uploaded: Nov. 21, 2025, 7:22 p.m.
Warranty Information
This warranty covers defects in materials and workmanship for 2 years, with certain exclusions.
Connecting Speakers to Amplifier
- Ensure the amplifier is switched off.
- Connect speaker cables from the receiver/amplifier output terminals to the speaker input terminals, ensuring correct polarity (+) to (+) and (-) to (-).
- Press the lever on the speaker terminal down, insert the bare wire end, and release the lever to secure.
- Gently tug the cable to confirm a secure connection.
- Repeat for all connections.
Speaker Placement
For stereo listening, place main speakers 6-8 feet apart in front of the listening area. For surround sound, place speakers behind the listening area, 6-10 feet apart and at or above ear level.
Troubleshooting and error codes
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound | Speaker cable loose or disconnected. | Check and secure all speaker cable connections. |
| No Sound | Amplifier not switched on or volume too low. | Turn on the amplifier and adjust volume. |
| Distorted Sound | Volume too high, causing amplifier clipping. | Reduce the volume level on the amplifier. |
| Distorted Sound | Speaker driver damaged (dented grille). | Do not touch speaker drivers. If damaged, sound may be distorted. Contact service. |
| Unnatural Sound | Incorrect polarity (+/-) connection. | Ensure correct polarity for all speaker connections. |