AndrewHD 10+ year member
Senior VIP Member
Hello guys, I'm ready to upgrade from my Sundown SA-12's and am looking at the FI SP4. Do they beat hard in sealed boxes and is their SQ similar to FI Q's?
Have you considered going ported? A properly designed (and modeled if you want to go the extra mile) enclosure will have a very flat response and give greater output.Yea that's what I am thinking. I was going to go with either 2 15 FI Q's sealed, 2 LMS-R 15's sealed or a single SP4
2 15" Qs will take up more space than a single sp4 portedYes I have had several ported enclosures in the past but most of them blocked my access to the spare tire. I need trunk space more than audio also so this is another reason. Before I had 2 FI Q 15's sealed and still had plenty of room. I may just go back to the FI Q 15's with high qts.