first and most obvious, are the amps on or if set to auto , are they turning on ?
Settings I like to start with:
C/o 80 ( adjust to suit what you need)
Volume 11 o'clock
C/O Slope AVR / 12
Rumble Filter OFF
We once had a set of triples that didn't play at all right out of the gate, after say 5 inutes, they slowly began to play... I don't know if the suspensions were super tight or what but they never had an issue again... it was wierd but it did occur. If you double check all your wiring and the amps are indeed turning on, let thejm "play for a few minutes, see if they wake up