Miles

Where do you get those Db drive subs? and isn't that a down firing box? Looks like its doing pretty damn good. haha.

I'm about to sell my Fi Bl 12 and was looking at the SA series subs. I've never done 10's, so i was looking at doing 2 10's (of course the box will be behind the seat). I can fit up to 2.8 cubes behind the seat, but looking at about 2.3 after port and sub displacement. My current setup does a 140.0 on the dash (at 40 hz), the box is tuned to 28 hz, and it smashes the lows like no other. I'm wanting to know what would be a good box volume and port area to run 2 10's in that would get me into that range, or hopefully higher. Also, i'll be running about 1300-1400 wrms to the pair. I know there are a lot of factors that go into how loud a setup is, so i would like to tune the box to 34 hz for a good overall sound. I've had my fun with the LOWWWWSS, but i'd like it to be a little better 45 hz and up. Thank you.

Unless your shop is one of the few that would actually help you with something other than they sell, I'm going to bet that if they haven't heard of Fi, they are going to say the subs are the problem. Or, charge you $600 to build a box. Can you give us just a drawing of the max deminsions of the box you have now, so we can see exactly how big the box is and what it's tuned to. Not to say you did measure right, but it's always good to have someone else do the calculations.

That's what i'm thinking. However, since i would be running about 1300 watts to it, the box volume should be smaller to keep the sub under control somewhat. But, what size that needs to be i don't know. Any other thoughts or opinions?

Well, i've been thinking a little about the subs, and have asked myself this more than once, so i would like to hear you guys opinion on this.. I think the 2 10's would sound great, but do you think a 15 would sound better? If i ran the full power to that SA15, it would need a smaller than normal ported box, but is ~2.5 cubes getting too small. I can fit a 15 in this box no problem (mounting depth wise). But i would like you guys opinion.

What do you mean by "wing" box? Like a slanted box behind the seats? And i'd like to see pictures/videos of that setup. Here's a little video of my current setup (1 12 behind the seats). It murders the lows. And watch in 720HD

Thanks. I'm hoping this box lives up to my expectations, but if it doesn't i'll just sell it and build another one.

The way i have my box set up now (sub on passenger side, port on drivers side with my 1 12" sub), it builds a ton of pressure on the drivers side, and doesn't sound so great on the passenger side. Could just be difference in vehicles. If this box doesn't sound good i'll just make another one that's a complete opposite of this box.

And yes, that is a piece of wood 4" away from the port opening (same size as ports), to create some kind of backpressure. I've done boxes before with ports that close to the sub, and you couldn't push the sub much at all before it started to go into overexcursion.

I've always seen Outlaw style metering done in the passenger side kick panel..... But, i mainly meter on the dash, so i'm not too worried about what it will do Outlaw.

Truck is a 99 Dodge 1500 single cab. Subs will be facing forward behind the drivers seat, ports will be facing the passenger side of the truck. Here's a picture before i put the baffle on the box.

That sounds awesome. I've always had just a single 12" sub off about 1000 watts, and started out doing 137.8 on the dash, to my highest of a 141.6 on the dash and a 145 in the kick panel (center console box). The box i'm making now is 2.4 cubes tuned to 33 hz with 2 4" PVC ports (rounded on the ends), so i'm hoping for my highest numbers yet. With the power being spread over 2 voice coils instead of just 1 should be more efficient, and hopefully gain me something.

Ok. That's good to hear. And i already have the sub sold, just waiting a couple of weeks for the guy to get the money and it will be gone. Wish i could already have the SA's, but looks like late December until i get to hear the new setup..

Nice. I'm hoping to get the SA's in about 2 or 3 months (hopefully sooner!). i can't wait to see what they do. I'll be running them off about 600-700 a piece. Hoping to break a 142 with them (meter on the dash and passenger door open is the format i compete in). With the port firing passenger side, will it be louder on the dash or outlaw in the kick? With an older box i built and port firing drivers side, it was about 4 dB louder in the kick than on the dash.

Ok good. I'm hoping for a higher score on the meter, but i think these will also have better SQ than my Bl. And, this will be saving space behind the seats in my truck.

I only have 1 12" Bl right now. Can do a 140.0 on the dash with drivers door open. I wanted to try 10's, and was offered $200 cash for my Bl, so might as well take the chance now. Hoping to be louder with these 2 10's.

Thanks! And yeah, i've heard great on both companies, but right now i can get the Skars about $50 cheaper for the pair than the SA's, so i think i will go that route. Just need to sell my Fi Bl 12 and i'll be in business. Haha.

I've modeled it in WinISD and it looks like 2.3 cubes with 30 sq in of port tuned to 34 hz will peak around 40 (theoretically). I can only fit up to 2.4 cubes so that's my volume limit. I've only modeled this though, and would like actual real world opinions on what would be best suited for me with the power i'm running. Also, what would be louder to the meter (since both will be the same loudness to the ear): port firing drivers side, or firing passengers side?

I didn't get any pictures during the process (camera was down and decided to not come on until it was all done). But the box is 3.3 cubic feet with 48 sq in of port tuned to 32 hz. This is also the first time i've ever done a kerf port, and i thought it turned out pretty good. Questions? Comments?

Finally got the sub in. These aren't my pictures, but i'll be getting some of my own this weekend. With only 500 watts its sounding very good and getting surprisingly loud.

Yeah it's a CD5030. I love the headunit, even if it has little fits and decides to blackout for 5 seconds every once in a while. Haha. Sometime this week when i'm not in class i'm going to do a walk around of the truck, showing system and everything else i've done to the truck. But for reference here's a quick rundown of the equipment i've got installed: Sub: Fi Bl 12 D2 fully loaded Sub amp: Powerbass ASA1500.1D Mids amp: Powerbass ASA400.4 Door speakers: Rockford Fosgate Power series 6x9's Kicks and A-pillar: Pheonix Gold RSd6.5 components Headunit: Eclipse CD5030 All wiring is 1/0 Big 3 in 1/0 2 1100 CCA batteries under the hood and a Stinger SP1700 behind drivers seat Sub box: 2.3 cubes tuned to 28 hz (truck peaks at 40hz no matter what the box is tuned to, but this has given me the best overall sound of any tuning fq i've done)

Figured i would post up a little video since i got out of class early. Tell me what y'all think. And this is only off about 1000 watts. And watch in 720hd.

Thanks. This has been a little constant work in progress. But, i think i will keep this box for a good while. Resale on this is literally nothing (even though it's in perfect condition), so i'll be keeping this truck for a few more decades and it will be a project truck of sorts. Next mod: 5.9 Cummins.

Pictures of the setup.