Amplifier, rear speakers (354R)
| Amplifier, rear speakers (354R) | 
| Location | 
Amplifier, rear speakers (354R)
| Main purpose | 
Amplify and distribute sound to the bass speaker.
| Type | 
Control module to supply output to the speaker.
    
    | Connection | 
| Pin No. | Signal type | Description | 
| 9 | Ground | |
| 10 | +30 | |
| 1 | O-bus | Reception. Separate bus connection. | 
| 2 | O-bus | Transmission. Separate bus connection. | 
   
   Wiring diagram, power supply
   
   