If your Yamaha RX-V4A switches to Protect Mode when used with the ULTIMA 20 Surround, check the following settings and the placement of the receiver:
- Set all speakers in the receiver menu to “Small.”
- Set the crossover frequency to at least 80 Hz.
- Avoid the combination of “Large” speakers and the activated “Extra Bass” function.
- Do not expose the receiver to direct sunlight.
- Ensure adequate ventilation. The ventilation openings must not be blocked, and there should be enough free space around the device.
Receiver is already in Protect Mode?
- Turn off the receiver.
- Disconnect all connected cables and speakers from the device.
- Wait at least 30 minutes.
- Then reconnect everything and restart the receiver.
Usually, the RX-V4A should then turn on normally again.
More information
- How to properly set up the subwoofer
- Speaker placement & home theater setup
- Can I use Teufel speakers with an amplifier rated for 6 ohms?
- What does the impedance rating “4-8 ohms” mean?
Translated with the help of AI