swift

I will drive up either Friday night and stay in a hotel or Saturday morning, and I will drive home Saturday night.

I have though myself of using some infinite baffle shallow mount 8in subs and running one in each door for mid bass (60-200) and running my Rockfords 6.5 from 200-4000 like they are now. The Rockford PA speakers sound good, get loud but dont expect alot of midbass. I just cant find anything on Parts express in a dedicated midbass that will handle much power. I guess that doesnt mean they wont get loud but curious of some suggestions. Not trying to highjack thread but trying to add to it. Maybe for both of us, lol. And contrary to what some people say, the Crescendo FT1's sound great and get loud as hell. I have them eq'd well and running them 4k up.....I have them ramped at 4k lower side, 5k a hair higher, and peaking them at 8k and 12k and ramped back down at 16k, 20k. This is my listening preference and they do great. When playing rock I will switch them to a different setting which is more tame on the 4k,5k and 8k.

So after looking at a Vent Mach calculator I am ending up with .040 - .052 depending on the power I run. From what I have read this looks like it will work good. I will post up some photos tonight of the enclosure being assembled hopefully.

I really like mine! So much in fact that I have 2 brand new Crescendo 8's in the garage that I am not using because of the RF's. They are much more shollow than the cendos too which was good for me.

If audio is your life and that is a serious question then well.................. Every size gauge wire is only rated up to a certain power point, above those levels you need more. Pretty simple and audio is "not" my life

Cant go wrong with either, but for the money and power I say Crescendo all day. Sundowns are beast, but the Crescendo is no slouch. Go with your gut and budget on this one.

Ok looks like I am at 20cu ft. net tuned at 30.5, with 275in of port area. I think this will be fine. May not meter the loudest but should murder the lows, anybody find a good priced 5500 let me know.

Really nice of you man, I know how time consuming it can be to design good enclosures. Thanks for your help with mine. Hope you get better soon.

Looks brutal!

Thanks alot, I know my truck peaks pretty low so I'm sure that will have some effect also. Did port area change that graph much?

Not if you have a well build box, its totally fine. My box is the single most stable thing in my truck.

Fuel costs plus paying the driver plus wear on the equipment. If you can do it for less than start your self a business! You can, its called the mail. LOL

Well, as if two SP4 18's isnt big enough, lol After doing measurements I have enough room for 3, so I just ordered another one. So now I have time to build a new enclosure and not have any down time which is cool. I ordered another Dual 1ohm. So now becomes the question of amp and ohm load choice. After looking at my wiring options I think it will work perfect. For at least a couple months I need to run all three off this one Crescendo BC5500. Which I actually think will be ok for now and get loud. Three dual 1's will wire to a .67ohm load which I think that will be fine if I'm thinking correctly and hopefully put out close to 2000 watts per sub. My electrical is very stable now with the 370amp alt and 4 D3400's and I will add a couple D3100's too if need be. So my future options are.............................. * Add another BC5500 and wire to 1.5 ohm which will put a .75ohm load to each amp. Roughly 11k- 12k watts total (3500-4000 watts each ) This seems like the ideal and effective option. *Sell my 5500 and find a large amp that will do 9k at 1.5ohms? DC 12k maybe?? *Sell my 5500 and find a large 10k amp and run it at .67 ohm load daily? Either way this bitch is fixing to get loud!! I will be walling the truck with 19 cubes net tuned low at 30-31hz. Three subs across bottom and port across top. I have 60in of width so they will be straight and evenly spread across which should be unique. This box will also be all Baltic 13ply Birch. I am not too concerned with numbers but the truck does a 150 now and does it low. But I will be looking to do 152's on music in the 30hz range. Sounding very good is my main goal, Hopefully the truck will hold up. LOL

Like I said, I would do between 80-100. I am running 2 18's with more Xmax and just as much motor strength as the Zcons and I have 204in of port and it falls off quickly around 4-5hz below tuning. I wish it was a hair smaller. Just pick something close and run with it. Its easy to stress out and over think it. If your in that range and you build a good enclosure your fine.

29in of port per cube? dayum Thats 209 in of port total, thats what i run for my TWO 18's. I would do between 80-100sqin of port for that sub if you want it to be musical.

I meant a 30 sec average full blast like in Park and Pound (Meca) Just seems pointless to be at half volume then go full tilt for only 7-10 seconds which its clear everyone does. Not knocking it, looks fun to me. I wish Meca did that here but I dont care either way Im in Tennessee, lol. Good scores on music and congrats on the wins

I will be making the trip, not sure about both days but definitely one of them

Take some thicker all thread or threaded pipe and cut it so it will fit in there (maybe 1/4 in short) then get a threaded foot for each side and screw them on. Put the brace in and unscrew each side by hand against the wood till its very tight. And put 4 screws in each foot to hold in place. You see the same thing in a smaller scale on the stripper poles guys use in major 4th orders. This will will help and I bet it will be louder when braced properly. Any questions just ask. I will help any way I can

The Meca state finals were this weekend so I decided to go check it out. The comp bug has bitten me alittle and its been fun going and seeing all the different builds. I have placed in every event so far but the nature of my build makes me a huge underdog. (Tuned low, not below window line, actually sounds good, lol jk) But its fun none the less. It almost makes me want to sponsor myself and turn my 2002 Dodge Caravan thats sitting at my office into a monster build, LOL But I did sit in a 157 blazer and that mofo was actually painful, it peaked at 44 he said and the punch of each note was quite brutal. Also sat in a minivan that was a low tuned 4th order that peaked low and that did a 154.5 at 31hz. Thats more my style and was a damn wind tunnel. I get stuck in Mod 4 going against the big dogs, lol. I did a 150.2 at 34hz at the headrest. I need to get a meter from Shizzon so I can play around at different locations, I think a 151+ at the windshield or kick is doable. But really my current setup is for demoing and music and it does that very well. This event I picked up 3rd place in Mod4 and 1st place in the show and shine, Phat truck, best rims and best paint (not sure why). Here is a pic of some trophies I have gotten at the last three events. Here is a quick vid of the 157 blazer. It has 4 18in IA DP's on 2 IA 40.1's in a 4th order. I figured I would share, Senchez was there and his Explorer was getting lots of attention, Must be that killer box he has, haha

Please run some all thread between each sub from to back and use lock washers, flat washer and nuts. If a sub pops out full tilt you will unload the closest one and probably blow 2 subs at once. I hate to say it again but I honestly wouldn't even play it until I did that if it was mine. You could probably put a shoulder in it around the port and cave in the entire front baffle the way it is now.

Get some bracing in that box or you will keep breaking screws, and not from the Dcons but from baffle flex. The port is not acting as a brace so you have six 15's on a big double baffle surface which is no where near enough!!!!!!!! Sorry to be critical but I think it needs pointed out

Cool!! I thought the XP's were not suppose to be under hood in that heat? Look forward to seeing the build

Having alittle fun behind my office on a Saturday Morning. Volume is about 3/4 since I'm just walking around at idle and not monitoring voltage although its not much a issue with this new badass alternator.

Nice!! Although that class doesnt make much sense to me. Why dont they let you burp music and be done? Seems like if they want 30 seconds of music they would do an average... Nice scores BTW

It will probably sound like your farting in the bathtub, (straight ass) Do two PSI built 15's instead and you will be much happier!