I'm looking to downsize in the trunk of my 03 civic 4dr. Right now I have 1 15"TC2000 in a 3.2cf @32hz powered by an Alpine PDX 1.1000. Honestly, I could stand to lose a little output. So my question is how does 3 10lvl2 sealed vs. 2 10lvl3 ported compare in terms of output, upper bass freq, & lower bass freq? Also, would both of these setups be a BIG step down to my current one? Thankyou.