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?
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?
2005 Impala
DC Power 300 amp alt
XS Power D3400 under hood
Big 3 Rockford 1/0 gauge
Eclipse AVN 726E
Rockford T3 6.5 component set
Rockford 1000.4-ADCP
Rockford 2500.1-BDCP
FI Q 15 Sealed 2.5 cu. ft
CarAudio.com Elite
What are you looking for when you upgrade? The Sp4 should do very well sealed.
Head unit: Kenwood Excelon KDC-X996
Front stage: Alpine Type X PRO mids Vifa Neo 1" silk tweeters
Front stage amp: PPI Bk800.4
Subs: SSA XCON 12's in 4.5 cubes tuned to 34hz
Sub amp: PPI Bk1300.1
Sound Deadening: Second Skin Damplifier Pro, Spectrum, and Sludge
Team SSA
Senior VIP Member
Looking to run a sealed 15 or even 2. I have a Rockford 2500bd-cp so I'm thinking that would only be enough power to run one. Would running 2 SP4's sealed on this power be ok?
2005 Impala
DC Power 300 amp alt
XS Power D3400 under hood
Big 3 Rockford 1/0 gauge
Eclipse AVN 726E
Rockford T3 6.5 component set
Rockford 1000.4-ADCP
Rockford 2500.1-BDCP
FI Q 15 Sealed 2.5 cu. ft
www.soundrive.audio
No need to run a 4 inch coil woofer on 2500w... A 3" coil woofer would be more efficient on that power
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Senior VIP Member
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 SP4Originally Posted by Tenacious.
2005 Impala
DC Power 300 amp alt
XS Power D3400 under hood
Big 3 Rockford 1/0 gauge
Eclipse AVN 726E
Rockford T3 6.5 component set
Rockford 1000.4-ADCP
Rockford 2500.1-BDCP
FI Q 15 Sealed 2.5 cu. ft
www.soundrive.audio
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.
Owner, SounDrive Audio
Visit our store at www.soundrive.audio
Like us on Facebook at www.facebook.com/soundriveAudio
PLEASE EMAIL ME FOR FASTER RESPONSES - [email protected]
Dealer for: SounDrive Audio | FSD Audio | Audio Legion | US Alternators | XS Power | Mechman | SPL-Lab | Taramps | ILL Customz
Axxera, Axxess, Blues Audio, Install Bay, JVC, Kicker, Massive, Metra, PAC, Power Acoustik, Powerbass, Raptor, Soundstream, T-Spec
Senior VIP Member
Yes 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.
2005 Impala
DC Power 300 amp alt
XS Power D3400 under hood
Big 3 Rockford 1/0 gauge
Eclipse AVN 726E
Rockford T3 6.5 component set
Rockford 1000.4-ADCP
Rockford 2500.1-BDCP
FI Q 15 Sealed 2.5 cu. ft
Shake Pound and Rattle
2 15" Qs will take up more space than a single sp4 ported
[FONT="Georgia"][CENTER]Silverado SS on 24's
2 Fi SP4s Fully Loaded
8 cubic foot after disp. 30Hz
PowerBass 5000XTA and PPI 900.4
Clarion CZ 702 for now
4 Exodus Anarchys, looking for tweets
Singer 275A Alternator, Big 3
140 A/H and Shuriken BT-45
always low
Do 2 12's ported.
Alpine - ASE (local) - Batcap - CT Sounds - eD - Excessive Amperage - Powerware - Rainbow
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