Since you have already changed amp board twice the problem might not be due to the amp but something else.
Definitive technology subwoofer red light blinking.
Far right pulsing white light paused.
Pulsing white light wi fi setup mode.
If so then the subwoofer is working fine and it s an issue with the receiver settings or it s subwoofer output signal.
A front panel light recognizes the command.
To correct this try the following.
This time since you say the power light is up it might be your woofer driver fried and amp is still ok.
Balanced double surround system.
Wi fi leds on front lower right corner of speaker behind grille sock.
Procinema 600 subwoofer issues.
Far right solid white light playing content.
Double blinking white light wps mode.
Founded in 1990 definitive technology is renowned for powerful full range sound.
Developed with patented bdss technology high definition drivers with unique cones and rubber surrounds deliver more precise sound at all volumes.
Popped in inception for god tier sound check.
This indicates the wireless collection product has the network setup information and is attempting to connect but failing.
Far left solid white light optical input if muted via play pause button light will flash slowly.
Test the subwoofer by unplugging the rca cable from the receiver with the subwoofer plugged in turn the gain up to 2 3 up and tap on the end of the rca cable.
Award winning high technology speakers.
Please allow approximately 10 seconds for.
Rca home theater 14 gauge speaker cable.
Move the wireless collection product closer to the router access point.
It can be the sub woofer driver itself or even the sub signal input level.
Do you hear a buzz.
Exit the app put the speaker back into set up mode and set it up again.
The subwoofer also turns on when it sees a signal from the sound bar.
Procinema 600 speakers w.