myn 10+ year member
Member
I'm finally putting a system into my Bimmer and wanted some logical sound advice on some of my assumptions/decisions.
One of the main goals for this build is an almost stealth system, hiding away any components with the only thing in clear site being the subwoofers. I also need to make use of the trunk so large enclosures unfortunately are out. I would like a blend of SQ and SPL with a 50% emphasis on each. With that said here are my strict requirements.
Requirements:
Car: BMW E92 Coupe (335i/328i)
Enclosure Alignment: Sealed (Can't do ported //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif )
Enclosure chamber max size: .93 cu feet per with a max of 2 chambers
Amplifier Power: 1200 watts RMS (limited by space requirements)
Subwoofer Driver Budget: $350
I can run dual subwoofers or a single but again limited to 1200 watts RMS. Can only run a 10 or a 12, 15 will not fit unfortunately //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif
I've seen a TON of hype around the Sundown products and had originally planned on running either 2 SA10's or 2 SA12s. I did some modelling in WinISD and it appears in a sealed alignment on 1200 watts they won't meet my SPL requirements. This is most definitely attributed to their extremely inefficient rating of 83.21db. They appear to perform about average in a sealed enclosure but not better then the 12w3's given my power constraints.
In contrast, I also modeled a JL 12w3v3 which subsequently is about 4db more sensitive (87.15db). So doing the math I would need double the power on the Sundowns to get the same amount of output that the JL 12w3's are achieving.
And for kicks I modeled the Sundown SA12 in a ported alignment shown in the graph in green
Sealed Sundown SA12 = Orange
Sealed JL 12w3v3 = Blue
Ported Sundown SA12 (tuned to 35hz) = green
The graph below models each subwoofer in their ideal recommended enclosure, each given 500 watts for sake of consistency.
I am looking forward to hearing peoples recommendations and opinions. I'm not locked down to 12's, 10's would work too. Just please keep in my my goals and recommendations in mind.
Thanks
One of the main goals for this build is an almost stealth system, hiding away any components with the only thing in clear site being the subwoofers. I also need to make use of the trunk so large enclosures unfortunately are out. I would like a blend of SQ and SPL with a 50% emphasis on each. With that said here are my strict requirements.
Requirements:
Car: BMW E92 Coupe (335i/328i)
Enclosure Alignment: Sealed (Can't do ported //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif )
Enclosure chamber max size: .93 cu feet per with a max of 2 chambers
Amplifier Power: 1200 watts RMS (limited by space requirements)
Subwoofer Driver Budget: $350
I can run dual subwoofers or a single but again limited to 1200 watts RMS. Can only run a 10 or a 12, 15 will not fit unfortunately //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif
I've seen a TON of hype around the Sundown products and had originally planned on running either 2 SA10's or 2 SA12s. I did some modelling in WinISD and it appears in a sealed alignment on 1200 watts they won't meet my SPL requirements. This is most definitely attributed to their extremely inefficient rating of 83.21db. They appear to perform about average in a sealed enclosure but not better then the 12w3's given my power constraints.
In contrast, I also modeled a JL 12w3v3 which subsequently is about 4db more sensitive (87.15db). So doing the math I would need double the power on the Sundowns to get the same amount of output that the JL 12w3's are achieving.
And for kicks I modeled the Sundown SA12 in a ported alignment shown in the graph in green
Sealed Sundown SA12 = Orange
Sealed JL 12w3v3 = Blue
Ported Sundown SA12 (tuned to 35hz) = green
The graph below models each subwoofer in their ideal recommended enclosure, each given 500 watts for sake of consistency.
I am looking forward to hearing peoples recommendations and opinions. I'm not locked down to 12's, 10's would work too. Just please keep in my my goals and recommendations in mind.
Thanks