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Subwoofer box too big

25ft^3 too big Can I use that expanding yellow foam you get at the hardware store to fill up extra volume? Or would it be better to place a bunch of 2x4's in it? Or another idea if anyone has one. 10 Inch subwoofer box design, How to make 10 Inch Subwoofer Box? We will discuss the complete process in two main headings i. Single 10" Sealed MDF Subwoofer Enclosure Belva MDFS10 • 10-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/ Polyfil 0. Make sure the silicon is dry before putting the subwoofer into the box. Subwoofer Cabinet for Dayton Audio 12" Ultimax Subwoofer. What can I expect out of a box . The subwoofer enclosure internal volume should be as close as possible to the recommended by the manufacturer. If your box is too big you Port it. A subwoofer box is all the time subjected to low frequency vibrations. Best Subwoofer Box Design for Deep Bass 2019. The subwoofers I want require . It's important that a subwoofer be mounted into a solidly constructed sub box if you want to get the best possible sound from it. what if i used poly fill you think that may work? It is a subwoofer that may be too powerful for some. 1. Thie page of the bcae1. In a vented enclosure the woofer and port work together with the port resonating like a pipe organ. This means it must be sturdy or it won’t stand up to this. Using a subwoofer wiring diagram will ensure that the impedance between the subwoofer and amplifier match. which type is actually cheaper in the way? Box type or active subwoofer installed under car seats? active sub (underseat type) is cheaper. When a ported subwoofer is tuned low, and uses ports large enough to keep airspeed to a reasonable level, the result can be long ports. For many, this seems like a daunting challenge for mathematicians and alchemists, blending the acoustic voodoo arts with the Pythagorean Theorem. Re: Can a port be too big? Good to know. By Ben Murphy Need a custom subwoofer solution that sounds amazing and won’t take up too much space? Yep, we can do that! The expert team at our West Carrollton store put their fabrication skills to work and built a custom subwoofer enclosure to fit behind the third row seating, of this 2007 Chevy Tahoe! I built a ported subwoofer box for 2 JL Audio 6w3v3-4 Then decided to build a sealed box for them, office space too big for ported. 0 cubic ft one, what exactly are the  Building your own subwoofer box is a great way to get the look and fit you want, without . A port may not be rec­om­mended for some sub mod­els. ft. Advanced Enclosure Design and Fabrication . Find low everyday prices and buy online for delivery or in-store pick-up. If the box is too big, then the sound will be muddy. Make a sturdy box. Find great deals on eBay for big subwoofer. I'm skeptical about buying stuff like this online because what if I don't like it, but man let me tell you it was the best investment I made to my crappy 6 speaker setup. com FREE DELIVERY possible on eligible purchases "The single best home subwoofer available today. Buying or making a custom subwoofer box allows you to utilize as much or as little space; you decide. As I've said, don't base your decision on the number of ports, rather, base it on the overall subwoofer design and function. This works with the woofer to generate more bass than a sealed box. with building a box that’s too small. When the proper  The old prefab RX8 eBay box was just too small to get decent this bulid cost you and what kind of "ebay" subwoofer box you had before? Oct 31, 2012 Usually a subwoofer enclosure is a big and bulky box, especially if you're using If there's too much room, the vibrations of the subwoofer can  Do not spend large sums of money on exotic enclosure materials until the I don 't recommend using a port diameter of less than 3 inches for subwoofers. June 21, 2014 EH Staff The following image is the Hornresp input screen for a ported subwoofer system, based on the Dayton Audio PA310-8. enclosure than you will not need as rigid an enclosure as if you had a large woofer, lots of power and a large enclosure. Sub box hole too big My custom sub box hole for the speaker was cut for an 10 inch MTX sub and now I have a 10 inch Infinity sub which is a little smaller diameter What can i put in a sealed box to decrease the volume other than wood. . This is a box for 2 12sIts a downfire box so if I were to put a plate on there and do a new cut out Id The box internal volume should be as close as possible to what is recommended by the manufacturer. As a sealed box unit, the sound is deep but not too muddy or “boomy”. Cover the joints with waxes. 25 cu ft smaller than ideal, but still within the manufacturers recommended dimensions? EDIT: There is a good chance I'm reading too much into this. ASC Dual 15″ Round Universal Subwoofer – Good Looking and Powerful. How much knowledge the opinion is based on varies greatly. Got a tech question for Sound & Vision? Email us at AskSandV@gmail. An example of a large concert subwoofer enclosure is the 1980s- era ElectroVoice MT-4 "Bass Cube" system, . A truck subwoofer will give your vehicle an added dimension that you've been looking for. How to Properly Set Your Subwoofer's Volume (Without Shaking the Roof) the music may sound garbled or too buzzy. If you do not know what to look for when buying 12 Subwoofer Box, it is not easy to make the right decision. Are you taking in account the volume the sub displaces in your  Oct 7, 2013 But the box should be the right size for the sub to make the most out of the assembly. The box is already heavy as hell. But before we get started, let's The only box I can find ( I drive a truck) is 1 cu ft. 4 per chamber. MTX built this thin subwoofer to give you big bass in your vehicle,no matter how space restrained or resource limited you’re encountering. 9 out of 5 stars 59. 75" MDF then it will be too big, over 6 cubic feet. Getting Started. I've designed a ton of subwoofer boxes in the past, and always had good luck with 3" ports, but when you are working on a system with such low resonances, usually you don't have the length inside of the box to fit a large enough diameter port tube to avoid a bit of noise. As part of our new powered subwoofer measurement protocol, we will be offering a room size recommendation for each subwoofer tested. If the subwoofer box is too big, then the sound will be muddy. When making the best subwoofer boxes, careful consideration should be given to the type of materials to be used. The new Type-E 12” specification requires 0. It will also require a powerful car battery and a high quality amp to reach it’s full potential too. If it's too small you polyfill it. Its 11 1/4 and the subs I have right now wont screw in because they screw holes arent furhter out than 11 1/4 for some odd reason. A DIY subwoofer might just be the fix you’re after. Another big punch of bass, but more restrained than the Orion, the MTX  Oct 26, 2018 A ported enclosure system consists of a driver mounted on one side of a There's a bit of a ripple to it, suggesting that the box is a little too big  Sep 19, 2017 That box, as you state, is a little too big for the sub, maybe some polystyrene. 34 cu. To calculate interior volume, first convert all fractions to decimals (½ = . If the rear chamber(s) is/are too big, the amount of power the system can handle is reduced. They also have the advantage over ported and band pass enclosures in terms of overall sound clarity. Designing and building your own subwoofer for your audio system can be a great way of improving its sound. If you are in search of a subwoofer box design that can offer high output sounds then ASC dual 15” enclosure is the ideal option for you. There are multiple information about amplifiers and subwoofer on internet but i can’t understand which one is the best choice for car. well, not necessarily blow, but bottom out. 8. 65 – 1. What happens when you don't have enough cubic feet in a subwoofer? putting some of that fiberglass filler inside. So I planned to make a fiberglass box to fit into the OEM subwoofer location. For drum and bass it works well, but for rap it is not good. DIY Bass: How to Install a Car Subwoofer It's one of the easiest upgrades you can do to your car's audio system, and a DIY subwoofer will have you kicking the bass with the best of them. Also it is a downfiring sealed box My box is too big - Realm of Excursion Box Design Steps. This enclosure is build from 1" MDF all around which means it can handle years of heart stopping bass without having to worry about the box flexing or leaking air later down the road. Shop Metra 12" Single Sealed Subwoofer Enclosure Charcoal at Best Buy. 6 cubic ft ported enclosure, but let say I put it in a 1. com site helps you to calculate the volume of your speaker enclosure. I recently bought this subwoofer box online. Choose A Subwoofer Enclosure Type The bigger the sealed chamber is, the lower the driver's mechanical (also called "displacement-limited") power handling will be. This will help you know the best subwoofer box design for deep bass. I'm my old Honda Civic, molding a box to the shape of the trunk was really easy to do. Too many people use gasoline (petrol) as a solvent to remove adhesives and such. Ford F-150 Extended Cab / Super Cab 09-18 Single Subwoofer Box 5. The box volume tells you how big your enclosure needs to be for maximum performance from the sub. This is the full width subwoofer box version for this truck and takes up the entire cargo space under the rear seat. " - Mark G. if you want really deep bass look at the specs for the box that they tell you and just go slightly bigger if you want. Thank’s for sharing this article, In this i got 7 best car subwoofer through which I can easily select the right subwoofer that can fulfill my all requirements according to my car system. Too big and it’s unnecessarily expensive and – well – too big. This is usually due to poor crossover designs or choices (too high crossover point or insufficient crossover slope)  A step-by-step guide to building a speaker cabinet or subwoofer box for your The woofer will handle a large amount of power because the enclosure will limit the If the port has too little area, the airspeed in the port will be higher and can   Apr 22, 2014 No subwoofer can do its best if crammed into a box that is too small or if left to float in a box that is too big to provide support. To Divide or Not to Divide . For additional subwoofer wiring options, please see our Subwoofer Wiring Wizard. "Impressive low frequency punch. If you do not know what to look for when buying 12 Inch Subwoofer Box, it is not easy to make the right decision. I'm new to the car stereo world and am still learning. 77 cu ft Sealed Enclosure • 3/4" Medium Density Fiberboard Construction • Durable Black Carpeting • Pre-Lined with Poly-Fil • Gold Speaker Terminals Similarly, trying to cram a long subwoofer in a shallow box won’t work. Better too thick (which adds rigidity) than too thin. This 4 step process will show how to design a subwoofer system for your vehicle. com. If a box is smaller than what it is supposed to be, the sound will be tighter, but more amplifier power will be required. 1. Too big or small a box will harm the audio performance of  BH882 EAW Speaker Box Design, Subwoofer Box Design, Horn Speakers, . 5, the box is said to No subwoofer can do its best if crammed into a box that is too small or if left to float in a box that is too big to provide support. 25 inches by 18 inches. Building subwoofer boxes and building a custom subwoofer box. 85 cubic feet per subwoofer. And, finally click the "Calculate Minimum" button to get your results. One drawback to this box design is the efficiency. Audio The Importance of Subwoofers in Your Home Audio System The subwoofer is often one of the most important speakers in the room. Building your own subwoofer is really not that difficult (especially if you get a relative or friend to do the woodworking for you!), and makes a great starting point for the beginning DIY speaker builder. This is the Dual Tall version of our 2002-up Dodge Ram Quad Cab sub box. A subwoofer’s specifications should indicate how much volume the enclosure should have if you are going to mount it in a sealed box. 7 cubic feet of airspace. It now sounds  May 3, 2017 You can't really buy a too large or powerful subwoofer as long as you can size – 12” is usually enough to hit lower twenties in a sealed box. when you get to big it will all just sound like sh. There is a too big risk of choosing 12 Subwoofer Box and being disappointed when you receive the product. Hello All, just picked up a pair of alpine type E subs and didnt check the spec's. If I build it with . If you go too large, however, you begin to lose efficiency in order to gain the  A subwoofer (or sub) is a loudspeaker designed to reproduce low-pitched audio frequencies . e. Bigger rooms need bigger subwoofers to energize all that air space. If I use 3" walls, I can get it down to about 2. 8 or 2. 5? 3? 10? lol. As with any speaker-only setup, the amplifier that you pair with the subwoofer is going to be key to your sound. sealed enclosure subwoofer. com for subwoofer boxes, enclosures and spacers and get more from your car's or truck's audio system. This box was an 18" cube with 2. You should work with the limited space you have in the trunk or behind the seats. Twelve-inch subwoofers are one of the most popular sizes used in car-audio applications. Based on the subwoofer's max CEA output vs frequency and distortion capabilities we measure, it is our goal to provide a reasonable estimate of just how large a room Empty Car Subwoofer Boxes Information: Car Subwoofer Enclosure & Car Sub Box Information: It is often overlooked, but every great car audio system features a subwoofer enclosure purposely selected to maximize subwoofer performance. Never go too big with the subwoofer size, I have seen many fellows who have bought an over-sized subwoofer and now simply can’t use it. The bigger the subwoofer, the more bass you will get. 0 cubic feet air space, and the box has Volume (cu. How is My Sound Affected By My Sub Box's Type and Size? | Car Audio Q & A This happens when your enclosure is too big - Tech Stuff Tuesday - Duration: Subwoofer Box Volume I understand larger boxes will play lower, but at what point can you see a box is too big. Try placing your subwoofer in a corner and see how it sounds. There are 6 tiny screw holes in the box that are not covered as well. Also, make sure the speaker box is big enough to add a port. You need to know the length and radius of the port, the tun­ing fre­quency, and type of port. the obvious solution is to get a box to match the subs, but i dont really want to do that. Price Match Guarantee. Shop Metra 10" Single Sealed Subwoofer Enclosure Charcoal at Best Buy. This is well documented in all speaker and subwoofer design books. A subwoofer placed in the corner of a room may increase the subwoofer’s output – causing the sub to sound louder. wondering if i ASC Chevy Silverado or GMC Sierra Full Size Extended Cab Truck 2007-2013 Dual 12" Subwoofer Custom Fit Sub Box Speaker Enclosure. In the Model 3 it's a bit more difficult. This sub boasts a healthy concentration of features and great sound quality. Silicon and silicon vapors can damage your subwoofer. Another contender in our lineup of the best shallow mount subwoofer, is the MTX FPR12-04. Facts on whether or not dividing a subwoofer enclosure is necessary. " - Daniel I. Unfortunately it is about 1. 3. I've also set the box's depth, Lrc, to be 1cm (to start). Too small a box and it takes a lot more power to get the cone moving, likely exceeding the voice coils electrical limitations. I just punched a hole with a screwdriver and force fed the cable through there. The trick is to set your subwoofer’s volume, and you can do it in just a few There is a difference between a subwoofer with one large port and two small ports, but someone else here will need to step in and clarify. We also blocked off the port in the prefab box to make it sealed, and still had the same results. The box size sets the amount of air pushing/pulling on the cone. 5" woofers each. cm, which is about the cross-sectional area of a 4" vent. Long Port options Some suggestions for when the port length is greater than the box size. In the case of "tuning" a ported subwoofer box, there are two ways to do it: 1) Because less air is more "springy" than more air, a large Vas represents a "loose"   Apr 30, 2019 We reveal the best subwoofer for car reviews for the money , showcasing the As a sealed box unit, the sound is deep but not too muddy or “boomy”. You can put in your favorite 12-inch speakers in it without worrying about sound quality degradation. There is a wide variety of truck subwoofers and truck car speakers out there. However, depending on your floor space, a corner might not be a viable option for your subwoofer if it’s too far from your listening area. "We are going to create a ported enclosure for a JL Audio W6v2 subwoofer. Kicker Comp 07TC104C12 Vent Truck Box 4-Ohm. I don't know if it would be a valid test but I can't feel any vibration when it's driven anywhere on the body. Advanced Enclosure Design and Fabrication focuses exclusively on designing and fabricating subwoofer boxes for car audio installations. And it's good to have a big ported box but don't go too big or else your sub will sound  Question in title. Its a down fire box and the speaker cut out is like 1/4 too big. still can put like a baby pram, a few bags of 10kgs rice. When the proper airspace is there, the right size subwoofer can make a huge difference in the quality of the sound and maximize the ability of the subwoofer to handle the job. Want to go big? Kicker’s 15-inch car subwoofer is definitely ready to rock. the box has to be WAY too big for this to happen and it normally only happens when A subwoofer is a square(ish) box that supplies all the low-end bass notes in an audio system. Whether you are looking just for the enclosures or for the subwoofer installed in them, too (along with amplifier options), we’ve got you covered! Built to blend in with the rest of your vehicle, subwoofer boxes for trucks are the easiest and least costly addition you can make with the biggest impact. Many people refer to this subwoofer as a “mobile earthquake” due to the hard hitting bass. Answering your questions in no particular order: The box is not braced, in fact it's actually more of a tower with the woofer bottom firing. Take your bass sounds to a whole new level with a subwoofer box designed to fit your ride and your speakers. " - AVTechReviews "I'm absolutely blown away by the amazing sounds coming out of this subwoofer. Silver Member. I've selected a box size equal to the driver's Vas, and a vent size of 90 sq. Shop BestBuy. If you can't make another box, the only way to maximize performance is to retune the cab by altering the ports, if possible. 5) before entering the width, height, depth, or diameter, and thickness into any of our speaker box calculators below. Shop with confidence. This DVD is designed for the enthusiast who wants to be able to take any woofer and design and build the best box match for it and the vehicle it's going into. We offer a monstrous 18" slot ported subwoofer enclosure designed to handle the biggest baddest subs around. It may surprise you to learn that a sub box can make or break the perfect setup. 0 Great Fit, Great Sound! 05/05/2015 By Andy Fit: This box fits perfectly under the rear seat of my 2013 SuperCab (Ext Cab). so my SA8 seems to be bottoming out on certain notes and im figuring the box might be too bigits 1 cube at 32hz off a PG xenon 600. The sub can only travel so far mechanically, so too big of a box and the cone flops back and forth. Check our answers to ‘Is it possible to make a sub box too big for a subwoofer?’ - we found 20 replies and comments relevant to this matter. I've had it for about a year and not a single I would go with a ported box, plus the sub says to do so. Now the gap between the big box & small box is filled by water and rock This is the Dual Low version of our 2002-up Dodge Ram Quad Cab sub box. 0 BEST ANSWER: It's a big box and it's heavy! Nov 2, 2013 A subwoofer improves the sound of your system by enhancing bass and to fit the box to make sure you don't buy a speaker that's too big. I ordered the Atrend ported box because it was the correct size for my sub. The OEM subwoofer box is contorted to fit around the right rear wheel and matching that shape just wasn't going to be possible. 625 cubic feet per sub. Final Words: How to Mount a Subwoofer Box in the Trunk. If the sub box is too big, then the sound will be filthy and distorted. 25 thick walls. The "Minimum Diameter" box is for round ports, and the "Minimum Area" box is the minimum area required for a square vent. Increasing the volume too much,  Sealed Enclosure Characteristics Sealed Enclosure The sealed (aka: of air inside the enclosure dictates the performance of the sealed subwoofer system. 77 cu ft airspace 10SQTC • 0. Everyone with even a little box building experience seems to have an opinion on the matter. With that requirement in mind, I chose a 10" Alpine sub. associated with going big. the box can be in a box too big and move beyond its mechanical abilities and the voice coil and break or the spider can become detached or a list of other things. I've used dowels for bracing in this box and wasn't really impressed. ): 2. If a subwoofer is meant for a 1. If it's too large or too small, you can make small adjustments to one  Subwoofers in sealed boxes play "tight" bass, while ported boxes sound Travis, a Graphic Designer at Crutchfield for over 12 years, decided to join the fun, too  Jan 25, 2016 Inversely, if the volume gets bigger, the “air springs” effectiveness diminishes. Overall, it is the best subwoofer for deep bass and is suited to “bass” enthusiasts. With a Qtc of 0. Build a Box for Each Sub. Then I ran my power cable through a gourmet that is above the cable that releases the hood. It requires more power to produce high bass volume than other subwoofer box designs. Vented design helps increase sound output while also helping to prevent overheating. I tried running the power cable through the side of the door, where the door sill is at but, it is too big and I will have to removed the drivers seat to run it through the Polyfill Increases volume to the speaker not the other way around. Question in titleIf a subwoofer is meant for a 1. The Best Subwoofers for Trucks. 0 cubic ft one, what exactly are the risks and/or consequences? Also, what would happen if a port is too small for the sub? what if the port is too big (too wide/long)? the bigger the box, the lower they will hit. How can I reduce the interior What if a sealed box is too big? Matt f. It is also a stylish looking enclosure that will enhance the look of your car’s The 12-inch Power Bass 12 (3 holes, angled) box/car subwoofer box/enclosure is ideal for people who own big cars that are in need of some solid rock and booming party sounds. There is a too big risk of choosing 12 Inch Subwoofer Box and being disappointed when you receive the product. The exact volume of the box will depend on the subwoofer you plan to put in it. Priced around $150 for two speakers in an enclosure, you get a quality build and deep bass sound for a bargain. But far more The box internal volume should be as close as possible to the recommended by the manufacturer. A sealed subwoofer box will deliver a tight, clean and accurate bass response and have a flat frequency response curve. It will seem too big at first but you have to lower the seat and push it up under there until it sits flush. 5 cubic feet. ft box actual volume (subtracted by the sub's own displacement maybe close to 1 cu. My front speakers have three ports each because they have 3 6. Whether or not to divide a subwoofer enclosure always seems to be a subject that gets more than its share of controversy. Total size of the enclosure is 21 inches by 16. The box has 2. MDF 2. Edit: I was thinking it was because the box is too big. What if a sealed box is too big? Matt f. It isnt very impressive i wouldnt say. If you move your Best 15 Inch Subwoofer Box Design for Deep Bass. If a box is smaller than what it is recommended, the sound will be tighter, but more amplifier power will be required to push it. Ask the salesperson to print out a sealed enclosure designed specifically for your speakers and car. With the windows up is creates pressure pushing the sub?? It seems backwards, usually in trucks you hear the distortion with the windows up, but not with them down. A crazy thrill ride that vibrated my chair and walls. Our boxes are made from precision cuts of MDF. will help a lil bit if the box is too small. 5cuft sealed. Thanks. Plastic stripes to secure subwoofer box. Deep low frequency extension is a common goal for a subwoofer and small box volumes are also considered desirable, to save space and reduce the size for ease of transportation (in the case of sound reinforcement and DJ subwoofers). to a point. But the box should be the right size for the sub to make the most out of the Proponents of this concept will tell you that your subwoofer can be hidden well out of the way. So, motivated to make my purchase work, I decided to build a box: Spending less than $50 for the materials. First check the subwoofer’s man­ual to see if it shows how to install a port. The best answers are submitted by users of ChaCha and Yahoo! Answers. it. It won't make too much difference, the high end won't be affected, but it will not go quite as low as you want. Better to access the trunk and then go for the subwoofer. Obviously, you wouldn't put an average 10" subwoofer in five cubes, but for my level four for example, what would be too much? 2. a 8-inch sub in a small box could sound similar to a 12-inch sub in a big box if it had Re: Speaker enclosure too big! Thanks all for the excellent info, modeling and straight talk. The custom box for my 'vert is . This will ensure more powerful bass reproduction. The reason I want the walls so thick is because the box has to be 23"w x 21"d x 31"h. how to design a 10-inch subwoofer box on a paper and how to make a 10-inch subwoofer box by that design. A proper subwoofer installation means that the power requirements between the amp and sub match, the impedance between the sub and amp are consistent, and the subwoofer is mounted in the correct box. The store where you purchased the speakers may have computer software that helps it design subwoofer enclosures. 0 cu. I Have This Question Too (1). if a box is too big it could cause your subs to blow. Wall Subwoofer Dual 8 Big Bass Without the Big Box! SW200/17 Active Powered Subwoofer - BIG I have my idmax 12 in 2. This version of the box does not require the rear seat to be lifted, but seat spacers could be used to lift the seat if more clearance is desired. In some cases a sealed recommendation for subwoofer box will be half of what the ported recommendation is. Honestly the Best thing to do is polyfill and dynamat the inside of the box if it's too small this will increase the effective volume by up Buy ASC Dual 10" Subwoofer Universal Fit Vented Port Sub Box Speaker Enclosure: Subwoofer Boxes & Enclosures - Amazon. The recommended wood for building a sturdy subwoofer box is fiberboard of medium density. Further tips are included to help you build a strong, reliable, good looking enclosure. Too small and what’s the point? So, how big is just right?First, consider your listening room. . They can produce a lot of bass yet aren't so big that they can't fit into most vehicles. Q How big a subwoofer would I need to produce good home theater-quality bass in a 3,100-cubic-foot room? Would the Hsu VTF-15H be up to the job, or is there a better choice in my target price range (around $1,000)? Now, enter your Xmax figure (in millimeters), and the frequency that you need to tune your vent to. What will happen if you put a subwoofer in a box that is too small? between the two boxes. The box shown in this article was intended for my Honda CR-V, so I wanted to make sure it wouldn't take up too much space. This step by step shows the process to build a basic sealed box. I got a ported box for 2 10 inch woofers and I decided to go with some jl audio w3. Twice the room volume requires twice the energy from your subwoofer to maintain the same loudness. Anyways i measured the cubic feet of the selaed box and it was too big. a 12" sub box won't take up much space even in a hatch. ft) You have to make sure that the box is properly sealed, any leak and the response will suffer. These types of enclosures, when built with the properly calculated volume and tuned to the correct frequency for the subwoofer, are generally louder than a sealed enclosure. Best Answer: Be sure that what you measure is net volume, today subs has big magnet and structure and that takes space inside the box, so your 1. Horn loudspeakers are the best when it come to efficiency, but they are too big for  . This alone will play a crucial part to the bass output of your sub woofer. In my case, I picked up a sub/amp/box combo on Craigslist for pretty cheap, however the box was slightly too big to fit into the trunk of my 1997 240sx (only a 15" opening). " - The Master Switch "Right out of the box my new SVS sub transformed the sound of my system. If a subwoofer box is smaller than what it is supposed to be, the sound will be tighter, but more amplifier power will be required. Subwoofers are nondirectional, to a degree, but putting your subwoofer too far away from the rest of your speakers (and from your listening position) can lead to situations in which you do hear where the bass is coming from. box woofer gives better SQ. Includes both the subwoofer and a single-vented sub box. This version of the box does require the rear seat to be lifted and comes with the required seat spacers. A friend made me a nice enclosure for my subwoofer yesterday. there is more depth to the bass produced. subwoofer box too big