would it be safe to build a box tuned to...

[MarcusFranz]

35hz without a sub sonic filter? Theb is a memphis pr d4 15 on about 3-400 clean watts

[dman4486]

not with that much power....the pr are rated for 250rms. no ssf and overpowering don't go together

[dappa5]

yeah just make sure you have enuff port area
but yeah you will like that set up for that sub i sell memphis and i've done some thing similiar

[MarcusFranz]

Conflicting answers :0

[grimreper912003]

Really hard question to answer. Depends on the type of music you listen to, volume, port area, how you are on the volume of your music.

[MarcusFranz]

something like this and on the volume i keep it turned up fairly high but i dont turn up my bass i keep bass boast all the way down loudness off... and my gain was at like half way last time i had the stuff in my car..

[MarcusFranz]

oh and i listen to rap/hip hop mostly songs with lotsss of bass

[MarcusFranz]

theres what you asked for