i now have 2 12 l7 and im not satisfied with their output. theyre loud but theyre way overrated in what they do. so i decided to get rid of them and sell them.

the next weeks i get an 18 btl and the rf t40001. for electrical i get a kinetik hc 3800.

running the amp at one ohm, i expect alot of bass.

how is one 18 btl comparable to the l7s?

It's stupid to run a single BTL on 4000 watts daily, you won't hear any gains over just 2000 watts.

and what about two hifonics bxi 2610 for two btls? i know they quite arent as good as the rf but they will put out some nice power.

BTLs are rated at 2kw. Sure they have been known to take more daily, but subs are dumb as Nick would say

It comes down to your power supply and use of a correctly aligned subsonic filter. Weedy 50A alt with single battery won't cut it, nor will a 35hz tuning with a 25hz subsonic. Subsonic really wants to be within -3Hz from tuning.

How much room do you have?

i think 2 bxi 2610 do fine. having in mind theyre little overrated and considering voltage at 12 volt, each one should do around 2k rms.

i´ll put in later a hc 3800 or a d3100 to my stock agm batt.

for space i got roughly 12 cft.

What car is that?

I would be looking to run 120-150A at bare min for the RFT40001 with 1 or 2 good batterys, 2 D3100s would be good.

Even with the 2 HiFonics amps you have mentioned, 2 good batterys and a 120-150A alt. If your not able to do the above, go with less power.

i have a rf 40001 and i am selling it ... i bought it in june and it was installed by mid july ... i will sell it to you for 1100 shipped with warranty for another 10 months