Easiest way for bass on the 700 is this guy. Wasn’t a fan of ssv speakers though but you can choose the box unloaded as well. They have small enclosures made for the 700 also.
In our 1000 we still run this box from our 700 however it’s been highly modified for the 1000.
Currently running mtx sub powered but a Rockford Fosgate mini amp 300/2watt. These are very efficient amps great for Sxs application. Above pick can see sub followed by the massive blue capacitor for voltage control and the 2 fosgate amps at the end.
You can choose a sound bar and they aren’t too bad if you add bass. I went with 6.5 infinity marine with separate enclosures directly above head. They are powered another Fosgate at 300/4.
For head unit went with JL Audio and used nothing but preamp for a much cleaner sound. This is a very clean system and rocks.
There are so many different setups out there, guess it comes down to time and money on what you want. Everyone wants a little different, I wanted a very clear system so went with good quality components. It is loud too that’s for sure