I would go with the EP350 it has more overall output, better for HT. The little Ep400 does an admirable job but it just doesn't move enough air for a good HT environment. Idealy 2 subs, the EP400 and EP500 would be great, the EP400 could handle the upper bass(full range) and the EP500 could be set up for 60hz and lower with it's own filter.


Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70