New Parasound blows fuse?

Advise please.
Anyone experienced this.
Just received a new Parasound Halo integrated. Voltage was correct. We have good power in Singapore.

Connected power cable
Turned on main switch (front not turned on yet)
Loud cracker sound
Removed fuse
Fuse completely shattered
Fuse rating was correct

Cleaned up the connector
Parasound had the foresight to supply a spare fuse
Dealer says to try again with new fuse.
Should I try again or call the dealer?
Should I ask for a new unit?
I am afraid to try it. Its brand new. Not even a little sound from it yet, except the blowing of the fuse.

Could the speakers cause this? Note that the front panel switch was not turned on yet. The fuse blew before that that was done.

Very very broken hearted. Was waiting in mega anticipation to hear the music.

Pls advise.