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please vote on the poll above
4 Fi audio X 10's
1 Fi audio SSD 18
1 Massive audio DMX 15
i can get all 3 for around the same price
power probably a pair of autotek ss750.1s

please post name and vote also. and reason for vote.

SINGLE SUB FTW!! And doing a 18" sub seems like it would be lots o fun. Scott at Fi seems to be really backing his subs and the SSD's seem to be really proving themselves(and of course you already know this!!).

18" Fi Audio SSD!!!!!!

hey lover...

^ if you look anything like your avatar you can call me what ever you want ^

when the hell did you start considering FI? What happened to the x's?

got no problem but i cant get an x for the same prices.

well I can totally understand money side of things when choosing components

I picked four tens.

I didn't do any calcs, but I believe the total surface area works out to be somewhere in between the 15 and the 18.

Also, I didn't really dig through each of the spec sheets for those subs - but typically, you've got an Fs around 30hz for a 10, and an Fs maybe even below 20hz for an 18. If this were a SQ install, the low Fs might be a good thing - but on the other hand, the Q of a larger sub is usually not as "in control" as the Q of a smaller cone sub.

Not to mention, if you calculate out the "BL per square inch of cone area", you see you have a lot of motor behind those four tens, compared to the 18, most likely.
...think of it like a car and a car engine:
Compare a big old lead-sled (say, a '50 Merc?) with a huge 500 cu.in. engine to a VW GTi... with a VR6 in the front powering the front wheels, AND a VR6 in the back powering the back wheels. And make it a pair of those GTi's while you are at it (probably two would total close to the same curb weight as that old '50 Merc, right? ).

So there you have three cars lined up at the starting line at the drag strip.. one big-block '50 Merc, and two small GTi's with smaller motors - but two of them... much better power to weight ratio.
Which will be the better drag car?

Plus, I think there are more installation options with the four tens - one 18 is hard to even fit in a car usually, because it requires that box have at least an 18" x 18" panel on it (and likely larger really). On the other hand, four tens can be spread across a shorter, wide enclosure if desired... maybe a curved baffle... etc.

Just my opinion, if all were the same price.

thanks for the opinion geo i appreciate the post

the cone area on the 18 is 254 inches

the cone area on the 10's is 314 inches

the cone area on the 15 is 176.6 inches

the size of the box isnt a big deal i drive an suv so i have plenty of room.

So based on that, the tens would be the loudest option - and have the most control.

Of course, both those statements depend on several other factors (excursion, actual suspension compliance, motor strength, etc), but based only on that, and four motors that I am sure are more total BL than the single motor on the 15 and 18, I might bet that it would be true.