Anyone ever use these guys box's

[BAD MAN 485]

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=016&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=260220474256&rd=1

I was thinking about getting a box from him what do you think and oh yea front or rear firing which one sounds better and i dont want the trucnk rattaling

[ChargeRonDavinS]

looks clean, but as far as sound little sound can get behind the box (in the car where u can hear it) even when the seats are down, which is why I chose a regular 12 box, and used the grip side of velcrow to hold the bottom of the box to the carpet. 2 large pieces on opposite sides in the middle. (to hold it in place when driving like an idiot)

[BSHAW27]

Yeah I was going to get one of the boxes from this seller but I read lots of complaints about trunk rattle on our car with the spoiler so I decided to hold off. I did email the guy and he does allow local pickup so you can save the shipping money and just drive down there and pick it up!

Also I talked to a guy in Texas who had one and he said the box was built very well and he was very happy with it.

[sound&security]

that box is no good. it's facing the wrong way. try www.zenclosures.com it will make no bass pressure facing the seats like that and it's a sealed box so you will have pressure on both sides of your woffers and will burn them up.

[sound&security]

the trunk is going to rattle no matter what.

[FreebirdSRT]

that box is no good. it's facing the wrong way. try www.zenclosures.com (http://www.zenclosures.com) it will make no bass pressure facing the seats like that and it's a sealed box so you will have pressure on both sides of your woffers and will burn them up.

Can you explain why the subs facing toward the backseat is the wrong application and the subs facing into the trunk is the right application. Thanks.

[damiendvl99]

I have the box made by this co.that faces the trunk. It was made well and sounds great. It does rattle the trunk,but if I keep the bass at a decent level it is ok.

[sound&security]

Can you explain why the subs facing toward the backseat is the wrong application and the subs facing into the trunk is the right application. Thanks.

with that box with the seats closed the subs will have less then 2 inch's of room between the seat and the box and at high volumes the woofer's will hit the seat back durning their travel out wards on hard bass notes. in a sealed box you have pressure on the back side of the woofer and with the sub so close to the back of the seat it will over pressure the face of the sub's. you dont want pressure like that on both sides of the sub's in a sealed box

[sinistersix]

with that box with the seats closed the subs will have less then 2 inch's of room between the seat and the box and at high volumes the woofer's will hit the seat back durning their travel out wards on hard bass notes. in a sealed box you have pressure on the back side of the woofer and with the sub so close to the back of the seat it will over pressure the face of the sub's. you dont want pressure like that on both sides of the sub's in a sealed box

This is correct but only tells a bit of the story. An average bass wave ( I say average because it depends on the freq) takes around 30 feet to form. This is why you experience the phenomena of the bass sounding louder when the windows are down, and why bass sounds like dookey if you open the trunk and listen to them directly. You face them away from the driver, which is towards the trunk, because you are giving it the maximum room for the wave to form as it hits your ear. Firing forward, especially into the seats, allows no wave formation, and all you hear is cone flutter. That is why the trunk rattles so bad is because the bass is reflecting off your windshield and forming into the trunk. Also, bass is omnipresent, meaning it goes every and is not directional. When you have it fire into an open area, such as facing forward, you have cancellation of waves going into the trunk and waves going into the cabin hitting each other. The only time subs should fire directly into the listening environment is if there is no way the bass can get behind the sub. One 10 in a ported box firing backward would sound better and louder than that box. This comes from years of experience on SPL competitions with multiple cars hitting over 160dB (On the new termlab mic for you skeptics). In the end its your car and your music, but that box will sound like complete dung to anyone who knows audio

[BSHAW27]

You can buy that exact box facing forward or backwards. I agree it should face the rear but the box itself isn't garbage. For someone who can't build their own box or doesn't want to spend the time doing it this box would work fine.

P.S. what cars did you have that hit 160db?? I used to compete a little in SPL competitions myself. I had a few cars I competed with most only hit low 150s but they were all with 4 or less subs. 106s were ussually the big dogs with minivans or SUVs with nothing but 2 seats and a bunch of speakers.

[sinistersix]

In 2004 I was one of Orions sponsored members and used 2 H215s off 8 modded 1200Ds to run at 16v, competed in SS1-2NW in DbDrag. Best of all, I used a caravan! Ive hit 160s with a few cars that were daily drivers but they had 6+ subs, so the 2 subs NW is my most impressive feat. My truck has 6 15s and does around that. I would be surprised if anyone broke 150 with the way our trunks are built.

[BSHAW27]

Yeah I used to live in Palm Beach FL so I ran alot of MMATTS equipment when I was competing. I always had hatchback vehicles when I competed also and would point the subs up toward the hatchback. I had a 92 Mitsubishi Eclipse with 4 Cerwin Vega 12s (The old ones with the red foam around the cone) and a MMATTS D series 1200 watt amp that would hit high 140s and then I switched to an 88 Mustang GT hatchback that I put 4 15" MMATTS PRO CAST subs with 2 MMATTS D series 1200 watt amps. That car hit 155 once for me at a competition but ussually was around 152-153 db. After that I got a blazer with the same setup and it was loud as hell outside the car but the speakers were in the very back and I couldn't get them to test well on the SPL mic. Then it was my Z28 with 2 kicker solobaric 15s that was pretty loud it would get around 149db. That was the last car I competed with but my friend who owned a shop always had his cars in the 160s but I never wanted to get that loud. I liked having show cars that looked really good from the outside and then would shock people when I turned the stereo on!!

[ChargeRonDavinS]

I disagree with Sound@Security for one simple reason.. Sealed boxes are awesome. sure they aren't as loud but IMO the bass is MUCH better. Ports are for p*ssies, as my buddys and I used to say.

Now I dont care so much, my expo used to have close to 160 decibles, i believe it was 158.5. 4 15's. Not a big deal, but it was a sealed box. In a car, ported boxes may be better but move more air and would contribute more to nasty rattling. Our trunks rattle like H3LL!!

Glad to know we have some audiophiles on here. Totally agree with facing sub box toward cabin, REALLY stupid, will sound like poop.

[sinistersix]

agreed that a sealed box will always have a flatter curve and transient response over a vented box, but that is the purpose of a vented enclosure-to boost a certain frequency, based on the listening desire, resonant freq, etc. For SQ, sealed is a better way to go, but ported will always be louder if built properly. Since SQ is subjective, and some people think louder/harder bass sounds better, thats why some think ported is better. In all the SQ comps, the subs are in a sealed enclosure, and move less than 5 mm. Its really up to whatever the owner wants, but if you listen to rap only, why not tune a ported box to peak around 35-40 hertz? To each his own

[sinistersix]

with that box with the seats closed the subs will have less then 2 inch's of room between the seat and the box and at high volumes the woofer's will hit the seat back durning their travel out wards on hard bass notes. in a sealed box you have pressure on the back side of the woofer and with the sub so close to the back of the seat it will over pressure the face of the sub's. you dont want pressure like that on both sides of the sub's in a sealed box

just to clarify this, a sealed box is exactly that, sealed. Formally called an acoustic suspension enclosure, the rear pressure acts as a spring for the woofer, and is actually required for the application to work. However, in a ported enclosure there is much more excursion, due to movement or air, port velocity, and an open environment. There is much more pressure in vented boxes, so pressure on the woofer isnt necessarily a bad thing

[ChargeRonDavinS]

just to clarify this, a sealed box is exactly that, sealed. Formally called an acoustic suspension enclosure, the rear pressure acts as a spring for the woofer, and is actually required for the application to work. However, in a ported enclosure there is much more excursion, due to movement or air, port velocity, and an open environment. There is much more pressure in vented boxes, so pressure on the woofer isnt necessarily a bad thing

my crappy audiobahn flame q 15's are still hittin today in their sealed box. november of 04, ever since they've been ABUSED. 2 1500HCT amps (2000 x 1 ohm RMS) I think it put out about 1500 a pop, not 2000 rms, but either way i beat the snot out of them and they work well today still.

[sinistersix]

my crappy audiobahn flame q 15's are still hittin today in their sealed box. november of 04, ever since they've been ABUSED. 2 1500HCT amps (2000 x 1 ohm RMS) I think it put out about 1500 a pop, not 2000 rms, but either way i beat the snot out of them and they work well today still.

other than the immortals the q's could definately take some punishment! Sealed boxes are definately better for longevity of the woofer for sure. Most of my customers that came in for warranty had their subs in ported boxes

[ChargeRonDavinS]

other than the immortals the q's could definately take some punishment! Sealed boxes are definately better for longevity of the woofer for sure. Most of my customers that came in for warranty had their subs in ported boxes

Yeah why do the immortals suck so bad? The flame Q's are still somewhat firm to the touch, like all these years of battering have had little effect on them. Everyone said Audiobahn sucks wait a few months they'll blow... years pass and still workin! haha.

I prefer my Eclipse Titaniums though, better sound quality I think. Not sure on longetivity. I thought eclipse sucked too! :grin:

[BAD MAN 485]

well i live in sflorida and dont want to build my own box if i leave my back seats down and have them facing the front with no one in the car will these be ok when ppl get in the car i will put the seats back up and turn the subs down i figure for 120.00 he has local pickup i emailed him already i cant go wrong no also sound and security i pm'd you last week about a sterro system you never wrote back do you have a shop down here or just work out of the garage i need some subs and an amp

[2008 Road and Track]

Would one 12 ported be to much for my charger? It is a DD audio 9512G D2 on a Memphis MC-1000.

[sinistersix]

well i live in sflorida and dont want to build my own box if i leave my back seats down and have them facing the front with no one in the car will these be ok when ppl get in the car i will put the seats back up and turn the subs down i figure for 120.00 he has local pickup i emailed him already i cant go wrong no also sound and security i pm'd you last week about a sterro system you never wrote back do you have a shop down here or just work out of the garage i need some subs and an amp

Just because its 120 bucks doesnt mean you should do it. Maybe to you it will sound good but anyone who has even a half deaf ear to how bass should sound will tell you this is probably the worst sounding set up you can have. You will hear cone flutter, distortion, and it wont hit hard. It might be loud to the ear depending on the subs you have but you wont "feel" anything. Like I said before, 1 10" ported firing backwards will sound better and feel louder than this set up. Get the zenclosure box on ebay if you are worried about the price, and it faces backwards

[sinistersix]

Would one 12 ported be to much for my charger? It is a DD audio 9512G D2 on a Memphis MC-1000.

Not at all. I always say go with more bass than you think you may want for 2 reasons.

1. you will get used to it and wish you had more later.
2. if you have it, you can always turn it down. If you dont have it, you cant turn it up.

That would sound tight in the right box for sure. Used to rock 2 DD 9512's in a CRX and did a 153.5 with crossfire amps

[2008 Road and Track]

Not at all. I always say go with more bass than you think you may want for 2 reasons.

1. you will get used to it and wish you had more later.
2. if you have it, you can always turn it down. If you dont have it, you cant turn it up.

That would sound tight in the right box for sure. Used to rock 2 DD 9512's in a CRX and did a 153.5 with crossfire amps

crossfire makes a really nice amp. I was about to get one of the VR-4000 before I got the Memphis. I have been looking into atomic amps, but i do not want to upgrade the ALT.

[2008 Road and Track]

Not at all. I always say go with more bass than you think you may want for 2 reasons.

1. you will get used to it and wish you had more later.
2. if you have it, you can always turn it down. If you dont have it, you cant turn it up.

That would sound tight in the right box for sure. Used to rock 2 DD 9512's in a CRX and did a 153.5 with crossfire amps

x2 on the rex with only 2 12's hitting in the 150's, very nice.

[2008 Road and Track]

Not at all. I always say go with more bass than you think you may want for 2 reasons.

1. you will get used to it and wish you had more later.
2. if you have it, you can always turn it down. If you dont have it, you cant turn it up.

That would sound tight in the right box for sure. Used to rock 2 DD 9512's in a CRX and did a 153.5 with crossfire amps

how many amps, and what size. I know that the 9512 can take like 3000 watts clean all day, but what you running?

[BAD MAN 485]

he also sells boxs that hit rear firing would this be better suited why is this box not good?

[BrlntBlackSE]

how bout some pics of that truck with the 6 15s sinister. My last truck was a nissan with 8 15s

[sinistersix]

sure go to www.undergroundaudio.biz and look under the team ua section. It is labeled on the left as "frontier"

Just find a box that fires backwards and your fine. I am not saying the construction of this guys box is bad, just that it is firing the wrong way. If you dont believe me, get a sub box that you can flip around yourself, install it, and play it firing forward and backward. You can even fire it down or up, hell in my truck subs sounded best firing down. Hope this helps

[sinistersix]

how many amps, and what size. I know that the 9512 can take like 3000 watts clean all day, but what you running?

well since dbdrag street classes require that the car be off when its in the lane, we only had 1 vr2000D per sub. The vr4000ds actually clipped the subs and yielded less db since it didnt have the voltage supply to create the power. Takes power to make power

[bighitter]

I think most of us don't realize that these trunks are sealed pretty tight (other than that 8" factory sub hole in the rear deck). You buy a box that's sealed or ported and faces back and all the sound just resonates throughout the trunk and not much goes into the listening area. I found this out the hard way. To get more sound into the cab you have to do some type of port into the car. I've had boxes that face forward and backward and none sounded great. I built a custom box that faces forward, but is ported through the rear deck and it's my best sounding box yet. Gets very loud and since the subs are closed off completely from the trunk, I have very little rattle and all the sound goes into the car and not the trunk.

[BAD MAN 485]

wow finally someone who stayed on topic this thread got jacked really hard

[1Badass R/T]

I think most of us don't realize that these trunks are sealed pretty tight (other than that 8" factory sub hole in the rear deck). You buy a box that's sealed or ported and faces back and all the sound just resonates throughout the trunk and not much goes into the listening area. I found this out the hard way. To get more sound into the cab you have to do some type of port into the car. I've had boxes that face forward and backward and none sounded great. I built a custom box that faces forward, but is ported through the rear deck and it's my best sounding box yet. Gets very loud and since the subs are closed off completely from the trunk, I have very little rattle and all the sound goes into the car and not the trunk.


any pics of this set up ?

[bighitter]

Here are some unfinished box pics of what I did. The port size is 6" x 4" x 9" long.

[wrestlingnrj]

the trunk is going to rattle no matter what.

Would Dynamatting the entire trunk eliminate most, if not all, of the rattle?

[ChargeRonDavinS]

Would Dynamatting the entire trunk eliminate most, if not all, of the rattle?

No, the exhaust will rattle, I put weather stripping (sticky kind) around my trunk (tails, and bottom part) and i have rattling down to 5-10% what it was, and I dynamatted the top deck and carpeted it.