Buck 5,000+ posts
little alien on campus
I have checked a little bit in winisd and i think 700 liters looks good and plays decently low with a 36hz tuning.. But with the ports i think i will do 3 smaller ports in the front and use bracing to make it steady. And i think the subs does better in a big box because of the low ebp value.
Don't base your box size off what winisd tells you.