Apologies if this was already debated, but, considering all those extra phaser strips and pulse phasers, those single-tube torpedo launchers look kinda... odd Personally, I'd expect launchers with double tubes from such heavily armed ship, like those on Enterprise-E.
The launchers on the bottom of the saucer and below the deflector dish are both quantum
torpedo launchers with single tubes. There is a twin-tube photon
torpedo launcher above the deflector and there will eventually be at least one, or more likely two aft firing twin-tube launchers. There may also be additional fore and aft firing launchers on the saucer for use in separation mode.
This is a very heavily armed ship.