If you really want to rock those two L7's and spend less on 2400 watts than u would on 1200 watts, go with two of the JBL 1200.1's. Still go with the DVC 4 ohm versions, then wire it up for a 2 ohm mono load on each amp. The JBL's will give a cleaner output at 2 ohms than at 1ohm and if u adjust it right u shouldn't have any problems blowing speakers. Also if u ever wanted to maybe add two more L7's, you could still be giving them 600 watts per sub(to 4 subs) instead of them getting a measly 300watts(to 4 subs). Solo's dont do much off of 300 watts. They would seriously slam with 1200 watts per sub. However, if u wanted to compete and not have 1200 watts per sub 24/7, then go with the DVC 2 ohm versions. Then u could run your 1200.1's at 4 ohm mono and get 600 watts to each sub for everyday listening and when u go to a competition just rewire the speakers for a 1 ohm load and give them 1200 watts each. Good luck.