I have two EV "Force" Subs rated 8 ohms and 300 watts. I tried powering them with Europower 2500 in two channel mode. I used a Y cable from a single input to both channel inputs. That should be around 480 watts per side. The results were dismal. No thump. No bone crushing lows like I expected. Should I bridge the amp and parallel the speakers? That amp is rated 2400 watts at 4 ohms in bridged mode. Is that to much power for the 300 watt subs. I really am trying to discover how to make these subs really bring something to the table. Should I invest in a crossover? I have an EQ with a subwoofer output with a high cut filter. Is that where my problem lies. I know the EP2500 is not the greatest amp but it should make these subs thump with some authority. Just trying to learn.