Robimo box for subwoofer with your own hands. Choosing a subwoofer with your own hands! View of what to deposit

I wrote this article especially for those who want it, but after other reasons, you can’t afford to bring a subwoofer. This article has instructions on how to choose a subwoofer with your own hands.

I'll try to be accessible, for nedosvіdchenih people, my rozpovisti, and naskіlki can i show - scho subwoofer tse zovsіm clumsily like at first glance can zdatisya. If you really want to, but if you can’t, then you can!

My bagats have the whole word spinning, but not everyone can figure out what it is.

SUBWOOFER (SUBWOOFER) look like two words SUB and WOOFER - literally translated - subwoofer, tobto. acoustic system for sound at low frequencies (approximately 20 to 200 Hz). Bagato is called yoga - "bass speaker". Subwoofers can be either active or passive. Active - means that in the case of the column there is a substation and a block of life, Passive - it obviously requires an active subsidiary.

Also, the text has such abbreviations:

AC - acoustic system, just like a "column".

Dynamic - vin guchnomovets, but it would be more correct to be "dynamic head".

LFO - low frequency signal generator. (Pid woofers toil at high frequencies vіd 20 to 20000 Hz)

ULF - low-frequency signal subduer.

Croc first.

Tool and material.

To prepare a subwoofer, we happen to know:

1. It’s easy to go to the end, and we’ll cook on the material display (you can do it kindly!).

2. A good, correct tool, but for itself:

Knife on wood;

Chisel;

A set of files of different caliber and type: flat, tricot, round;

Shkirki (from small to great);

Electrodrill;

Twisting (you can also use a screwdriver);

Jigsaw (more prettier - electric jigsaw);

A line, a pen, an olive, an arkush paper and other stationery utensils;

Compasses (an eggplant with a "krill" spanning 20-25 cm.);

PVA glue, auto sealant, wood glue;

Budmaterials, but at the same time: plywood of a dresser from 10mm to 20mm, chipboard - it is possible, but not bajano, wooden bars 20x20, 30x30, 40x40 and so on.

A mountain of screws from 10mm to 50mm, we need more of them!

3. computer, which is better to install the JBLSpeakerShop program.

Croc is different.

Guchnomovtsiv (dynamics) settings.

Kozhen from us may be named, nickname, according to the father. Leather from us may have unique drawings of appearance, color of eyes, wand of fingers, little eyes of eyes. There are no similar people in the world. So you don’t have the same dynamics, you can have your own unique parameters from them. So, if you take two identical speakers from the same factory on the same day - their parameters will be adjusted, it’s not very rich, but the difference is small, but it can be important. Why am I, and before that, before that, how to start preparing a subwoofer, it is our responsibility to improve the main parameters of our speaker. Chi bought yoga in the store, twisted it into an old speaker, or pulled a friend from the garage, you need to change the characteristics of yoga. Nadalі, for tsimi parameters, we choose the type of box for the subwoofer.

The parameters are necessary for the subwoofer's sounding, and we record it on paper and save it until the moment when the clarity of the sound of the prepared "boom-box" will be satisfied.

So let's do it. Oskіlki in most of the basic programs for the opening of boxes in the AU, the Till-Small parameters are used, but we will be virakhovuvat themselves.

In order to expand the screens, we need the following parameters:

Pnom - Nominal intensity of the speaker, which should be induced in the marz of the head (75GDN-1 75W).
Fs - frequency of the damp resonance of the speaker in the open space.
Fc - Resonant frequency for a closed box.
Qts - Full quality factor at the resonant frequency.
Qes - Electrical quality at resonant frequency.
Qms - mechanical quality factor at resonant frequency.
Vas - Equivalent volume of dynamics.
D - The effective diameter of the diffuser.
Xmax - Maximum diffuser displacement. It's not bad to read about all the parameters of T-S - read.

The principles may need other parameters, but even more than enough for the cob of roses.

To change the parameters, you need a calculator, a voltmeter (or rather a digital multimeter), a low-frequency generator, a hermetically sealed box of liters by 20, and also happen to prepare a clumsy attachment.

LF generator - you can take it, for example, G3-109 or similar. Since there is no generator, you can also use a computer. To the line output of the sound card, it is connected to the power supply, and to the output of the power supply, through a resistor in 1KOM, it is possible to test the speaker. The tension of the resistor can be 2W and more, otherwise it will be very hot. On principle, everything is ready. As a substitute for the generator - a computer, it is necessary to download the program - LFO, there is a large number of them.

So let's do it.

The speaker is moved on a moto in the center of the stone to the stele, it can be behind the chandelier or in some other way, if there were no smut in the order, there were no objects, or you can stick to the accuracy of the world.

We connected it, we started the LFO program, we set the frequency to 1000 Hz. On the computer, the volume is set to the middle position, in order to prevent the formation of a signal. connect a multimeter to the output of the switch. Adjusting the thickness on the power supply, setting the voltage to 20V.

Connect a voltmeter directly to the speaker. We set the frequency of the generator approximately 5-10Hz and smoothly move the frequency following the indication of the voltmeter. We need to know the resonant frequency of the speaker, at this frequency the voltmeter will show the maximum voltage, then change more often. Later, the voltmeter showing the maximum value - we write it down in our sheet like Umax. Then we record the frequency of the generator, on which the maximum value of the voltage is fixed, where Fs is the resonant frequency. Now it is necessary to know the minimum value of the amplitude. Let's start again smoothly increase the frequency Fs to quiet pir, until the voltmeter reading stops changing, we write down the value as Umin, with a further increase in frequency, the amplitude will increase again, but it doesn't matter to us.

Now we know a little bit of parameters in our head, but only a single cob. For the help of a generator and a voltmeter, we can induce a graph of the frequency response of the images. On the new one you can see Umax - the current stress at resonance, as well as Fs - the resonant frequency - the peak on the graph. Umin mi tezh knew, but what do you say Uср you and what for F1 and F2?

Tse frequencies, from which we will determine the quality factor of the speaker. Previously, I entered the qi parameters manually, following the formulas Uav, Qts, Qes, Qms. Now it's the TSCalc program, you need to get it right at once - get it. Pratsyuvati with her simply, substantiate the meaning - we take the result. For the cob, Rmax is required, for which we multiply Umax by 1000 and write down the value of the sheet. If you happen to vimiryat opіr dynamics to a constant strum for the help of an ohmmeter, let's write it down as Re.

Now the value of Rmax is imaginable and Re is known to the program by Rx. Dilimo Rx by 1000 and take Uav. Now we know F1 and F2. Let's change the frequency Fs "down" and if the voltmeter shows the voltage Uav, write F1, now the same "up" in Fs and write the value F2. Now the value of Fs, F1, F2 is presented to the program. I take the values ​​of Qes, Qms, Qts.

The time has come for the box prepared behind the back. We take our speaker and fasten it to a shukhlyad with a magnet, in which there is no principle difference, it’s just so handy. Now we know the resonant frequency again, but we can write it down as Fc. Substitute the value of Fs, Fc and the value of the box, or take the value of Vas - the equivalent value of the box.

Well, the axis of principle and everything. The effective diameter of the diffuser is the most appropriate for the additional sound line. Don't forget to write down the value of the sheet.

Crook the third.

See the boxes.

Now we have є dynamics, є yogo real parameters, you can proceed to choose the screen.

I want to disappoint you once. The type of the case is selected according to the parameters of the speaker. I don’t insist that I don’t see that screen on the other hand, whatever you want, it just might not sound the same as it would have sounded on the “native” screen.

Otzhe, see boxes or subwoofer options.

The first option is Vilniy viprominuvach or Free air.

This option can go up to the speakers, for some Fs more than 100Hz.

Shlyahovogo subwoofer all one z ny not see, but the parameters of yogo are close to mid-frequency speakers. For example, you can put yoga in the back of a car.

Obviously, you can try out a new speaker, or better yet, search for a different speaker.

Another option - Closed screen or Closed Box.

Choose this box for Qts<0,8...1, оптимально 0,7

tvіr Fs/Qts=50

It is easy to secure, that it is necessary to secure the box.

Vіd dynamіk nebna chimala mіts, dzhe vysoka ymovіrnіst yogo z fret. In most cases, the box comes out cumbersome, which is absolutely unpleasant for a booth and a car.

The inside of the box is filled with soundproofing material, cotton wool, otherwise.

Such a variant of the vikonnanny may be the lowest KKD.

Option three - Phase inverter or Vented Box.

Choose which one Qts<0,6, оптимально 0,39

The dynamic is to blame for the mother's gnuchkiy and mіtsniy pіdvіs, tk. zdіysnyuє gigantic robot, with the maximum pressure applied, the diffuser kolivaє majestic amount of air, most of it "goes into the pipe"

Option four - Passive Viprominuvach - Passive Radiator.

Passive viprom_nyuvach tse yak phase inverter only replacement pipes viprom_nyuvach-membrane.

If you want, you can beat the old speaker, remove the magnet, cat, diffuser. And before the gum suspension, glue a plate with getinaks, orgskla chi other material. At the center of the plate, a vantage is screwed in - a bolt with a nut. Cim vantage can regulate Fc.

Option p'yat - Band Pass chi Band Pass

Band Pass can be transported like a smug traveler.

Band Pass 4th order- Band Pass 4th order.

Varto vibrati yakscho Fs/Qts=105

In principle, among the other variants of the corps, the most effective one is considered the most efficient.

Ale, at the same time, had the best prepared, two cameras and two phase inverters.

Band Pass 6th order A - Band Pass 6th order class A.

Band Pass 6th order B - Band Pass 6th order class B

Whether one of these options for housings, you can choose both on one, and on two speakers.

You know the parameters of your speaker, which one you have already appointed, when the hour has come for the opening of the box.

Crook quarters.

Rozrahunok screenshots.

The JBLSpeakerShop program has been unpacked to the root folder of the disk. Let's start the setup.exe file from the DISK1 folder. After the installation is completed, enter the path of another part of the DISK2 archive. Installation completed.

Launch the program Start => Programs => JBL SpeakerShop => SpeakerShop Enclosure Module.

I don’t report about the program, it’s even simpler and in principle everything was understood.

For the cob, we go to the Loudspeaker menu - we enter the parameters of our head. Let's do it, choosing the type of the box tisnemo - Box - Parameters - and there already on the type. It was not necessary to introduce the obsyag and the frequency of the baggage resonance, with these parameters it is necessary to experiment, watching the graphs. After that, as the parameters of the box were chosen, embossed Vent, then the parameters of the pipe (phase inverter) are entered, as well as the vin is extremely є. I've lost the opening of the box, the Dimensions submenu, choose the shape for the taste of that opening. The Graphs menu has a selection of types for displaying graphs.

Pіd zavyazku drukuєmo graphics, parameters, rozmіri - Ctrl+P.

Krok five, final.

Prepared screenshots.

Now, having rested the trochs, I take on the preparation of the box. At this stage, in order not to translate expensive material, it is necessary to clearly understand the rules, "Sim see once, drink once."

Distant preparations tool, material, patience. When choosing plywood, or chipboard (whoever has it), it is necessary to lie, which is more tightness of the dynamics, moreover, the walls of the box and thicker reinforcement are to blame. The best material is obviously plywood (do not varto vikoristovuvaty old, withered - you just get sick of it), it is richer for chipboard, I did not understand how it is possible to build a good subwoofer with tirsi.

We removed the line, the olive, we crossed the front on the arch plywood on all sides of the box. Ask for forgiveness, rapt here have mercy on what you will correct.

Now sawing, a good tool will be a hacksaw with straight and sharp teeth. You need sawing properly and bazhano under the hood, you don’t want it, the plywood cracked and cracked. It is possible to use a jigsaw, but with a speed regulator, for already known reasons. Saw right, do not hurry, you will be tormented with a drink to correct the humpback and the trap.

After that, they drank it like that, but with a drink it still happens to be treated, it is necessary to clean up all the pieces of wood, what to wash, otherwise rolling pins, iodine, bandages.

Dismantled wooden blocks, sorted them out yourself, but obviously not too small, but great. Put the walls one to one, like the stink of the guilty buti and mіdmiryayte the necessary dovzhina bruskov.

Another important moment at the finished box is the majestic opening of the loudspeaker. On the back of the head with a compass, we circle the speaker, three times more than the diameter of the diffuser at once from the gum lift. And one more little bit smaller, equal to the radius of the drill and adding another 2-3mm. The axis of the sprat is a way to pierce the pieces of plywood. Don’t joke around with the drill, it’s unlikely that the world has a drill with a diameter of 100-300mm, that drill is needed for a giant. Take a drill with a diameter of 10-15mm, an excellent electric drill. Drilling your piece of plywood on any other non-consumable wooden sheet, so you will save the bottom surface from cracking. Now, according to the inner stake, it is possible to open on the 1-2 mm window one view of one. How to finish, take a chisel, a hammer and break through the jumpers between the openings, then beat a little, so viyshov. We take the largest round file, and rather a rasp and nekvap, but I still under a small kut virivnyuemo kolo on the cross line. Gostri kuti from the front side can be rounded. Have the same way open for phase inverter. One more way: draw a circle with the radius of the diffuser and open it in the middle, and then, for the help of an electric jigsaw, swipe along the line. Shvidshe, then more trills! Apply to the opening of the speaker, like a “dirka” you are screwed, drill open the fixing heads, and for fixing you can twist metal double-sided nuts, which are screwed in, they are twisted at the furniture industry.

Don't forget the roses! Better vikoristovuvaty in concert acoustics - better and more practical.

Well, they broke all the walls, open the loudspeaker and the phase inverter, drank the bars, we choose.

I’m calling for a drill, we put a drill bit of smaller diameter below the self-tapping screws and drilled plywood sheets in quiet places, it won’t be fixed with other sheets and bars. Now we take PVA glue or glue for wood and apply it more often in the past. Inside the walls and open the screws in the vikonan, it’s not scary that the stench passed right through, you can’t see the middle, but the curse is important to us. Glue gratime dvі roles, zbіlshennya mіtsnostі krіplennya and sealing. Keep in mind that the design did not warp, cuti were equal, even if beauty and neatness are to blame.

Don't nail the back wall yet, there's more to serve us. Zaripit dynamіk, zvnі аbo zsrediny, to whom yak befits and marveling at the design of the dynamo. Lubricate the space of the plywood with the speaker with an auto-sealant, carefully, so that it does not squander on the diffuser. Autosealant - ensure tightness and are easy to see, if you want to remember the head for another hour or another hour for repair.

Phase inverter - you can beat a plumbing pipe, an aluminum pipe, that in principle, whether you have a pipe like you have є (krim of metal plumbing and sewer). At the program, enter її rozmіri and take away the tax. The phase inverter can be square, if you need to show your imagination in yoga preparation. Yogo will also need to be closed, but not yet tightly.

Yak robiti damper. The material of the damper can be: hard, hard foam rubber, cotton wool, this vorsonit is thin. The most accessible material is cotton wool. Ale, just її don’t naphaєsh in the middle! Here our beloved women will come to our aid, for the whole hour of our efforts to grumble about smittya, the noise of that bunch of instruments at the junction with the pieces of wood is thin. How can they help us? It’s so simple, women’s tights, you can wear cotton wool in them and make sound-claying “cowbass”, like they are glued to the walls of the box.

Adjustment of the phase inverter. After damping, we put the rear cover on the plate, but so, so that later we can remove it. If you want the speaker to be named, then the back wall can be fastened tightly with glue and a bunch of screws. The unit is connected to the LF generator through the subwoofer, and to the contacts of the subwoofer (for internal dynamics) a voltmeter. By changing the frequency of the generator, we know the resonant frequency Fc according to the already known method. As a resonant frequency, it is under the control of the Rozrahunkovo, we can use it for the auxiliary phase inverter and the number of the damper in the middle of the box. The bass reflex pipe will need to be either shortened or pulled down, in some cases the pipe can be larger than the dimensions of the subwoofer, in which case it can be bent at the sight of the letter "G". It is also necessary to experiment with the size of the damper, take it away or add it, depend on a specific situation. If the resonant frequency is in your power, you can tightly fasten the phase inverter, damper.

Listen to the music, which voice is better, listen to some third-party noise, whistle, rustle. How to whistle, then, here at the box, we won’t close the opening or the gap, cover it with putty or sealant, fill it with glue. How to rustle, it is possible for the damper to start the speaker diffuser, which collapses.

Now the remaining shape of the box is finished, you can round off, resolutely sand it, cover the cracks and holes with mastic or putty.

Finally, you can glue the subwoofer with a lint or some other material, put decorative grilles up to the speaker and the phase-energizer, screw on the legs, so you can choose to victorious yoga in the applications, here you are given a fantasy.

Well, the axis is nachebto and that's it! I support all my writings helped someone! Thank you for reading to the end, all the best to you, success!

Strengthen your respect, correction, nourishment at the address [email protected].

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Don't know what you're kidding? GOOGLED:

Someone who loves to listen to music with good basses, literally gurgles and fills everything all the time in a booth. In such a way, the energetic music is charged with positive, and when you look at the films from the original sound design, the picture becomes more realistic, and you literally see yourself at the very epicenter of the stage. Alezovsim not obov'yazkovo for all tsim virushat to the cinema chi to go to the concert of the beloved vikonavtsa, spending big pennies. Fully enough to improve the quality of the acoustics of the booth. This article is dedicated to how to choose a box for a subwoofer with a hand. There is no special flexibility in this robot. You need elementary skills to work with carpentry tools and patience.

Why start?

Before picking up the box, you need to pidit vidpovidally, the shards in the way of choosing to lay down the purity of the sound. Before that, as if I were going to be an armchair, I would repair the box, work on the speakers. For a subwoofer, the optimal option is 10-12 inches of imported vibration speakers.

Classification

The axis of the most popular design of subwoofers:

1. Closed box. The simplest option for the design is the vikonnannya option. The woofer is located in the middle of the hermetically sealed wooden case. However, I will build the KKD for such a nizhchiy.
2. Bandpass 4th order. The body of such an acoustic system is divided into chambers. One varta of speaker placement, otherwise - for the air duct. The peculiarity of the acoustic system of the first kind is the possibility of substitution of frequencies, which are created by a diffuser.
3. The bandpass is 6th order described as described by the system with one camera and one more air guide. This is the most convenient type of box for vikonnannya, then KKD yoga is the most beautiful.
4. Phase inverter. This subwoofer is equipped with a special tube, vbudovanoyu in the case. Turn the tube around. Behind the chamber of which the additional sound of the rear part of the speaker is ensured. For the sound of the sound, the folding of the vikonannya - we will close the intermediate option between the bandpass and the box.

Can you build a folding acoustic system on your own?

Obviously, if you want to achieve optimal sound clarity, the bandpass is better. Ale yogo creation in front of a large number of high-current roses. It is possible to tweak for this special software - WinlSD, which will help you not only accurately solve all the system parameters, but also see the trivimir model. Let's face it, the program will open the dimensions of all the details.

Important! The lack of a program in the fact that koristuvannya software security requires knowledge and skill, an ordinary koristuvach is unlikely to be able to zastosuvat. І for the correct analysis, the necessary characteristics of the speaker are necessary, which you may not know.

The optimal solution for a self-contained box is a phase inverter. Wine is clumsy when prepared, and the quality of the sound comes out as a whole decent.

Important! Before that, how to proceed to the selection of materials and the folding of the system, turn over the column, what is in your arsenal. So that this process, having taken only a small amount of khvilin, hurry up with our instructions.

Wimogi to materials preparation

The box is guilty of buti preparations from a mіtsnogo and schіlnogo material with a garnim soundproofing effect. Ideally, for whom plywood is used, for sprat balls or chipboard. Before that, the materials are inexpensive and easy to use.

Otzhe, you need to know:

• Plywood bagatosharova tovshchina 30 mm.
• Samonarizi for woodworking - 100 pcs, 50-55 mm.
• Material for soundproofing.
• Twist or drill.
• Electric jigsaw.
• PVA glue.
• "Ridki flowers".
• Klemnik.
• Carpet (close to 3.0 m).

Pobudov chair

We take as a basis the dynamics of 12 inches:

• The optimal volume of shukhlyad under the speaker should be 40-50 liters.
• Rozmiri boxes become 700x450x260 mm.

How to properly build a box for a subwoofer - order diy:

• The diameter of a 12-inch speaker becomes 30 cm.
• The minimum distance from the wall of the subwoofer to the center of the diffuser is 200 mm. Open the door for help with a jigsaw.
• The next stage is cutting through the opening for the bass-reflex slot with parameters 350x50 mm.

Important! Shchіlina can replace the pipe-povіtroprovid.

• Choose a bass-reflex slot and attach it to the front panel of the speaker system.
• Fix the sticks with "rare flowers" and fasten them with additional screws.

Important! Twist the self-tapping screws of the yakomoga more. If you leave it empty, then the stench can become the core of resonant colivans, and the sound will be recorded.

• After that, take the white parts of the box, smearing them with "rare flowers" and fixing them with additional screws.
• On the back wall there is an opening for the terminal block.
• Insert speaker.

The current part of the work is completed.

Internal fittings of the box:

• Nasampered, glue all the sticks with sealant or epoxy.
• Be careful with soundproofing material and glue the walls in the middle.

Important! For which purpose PVA glue is suitable.

• Cover the box with a carpet, including the slot of the phase inverter.

Important! You can vicorist for any furniture stapler and epoxy.

Depending on the type of construction of the subwoofer box, it is necessary to lay down the richness and thickness of the basses, so prior to the design and preparation, it is necessary to pay special attention to all aspects. How to build a box for a subwoofer with your own hands? Vіn maє buti vykonaniya іz mіtsnih materialiv, that scho in the process of exploitation yomu happen to be vitrimuvat vysokoі vantazhennya.

Rіznovidi

According to the type of construction, chotiri vidi are distinguished, leather from them can have its own peculiarity and building in a different way to add to the sound.

1. Closed box. This box is simple in design, and the type of its construction is world-wide in its name. Subwoofer speaker, room near the close box, may have a small FCD, but the acoustic power will be significantly reduced. Yogo can be relocated without any problems in any place of the car.
2. A phase inverter is a housing that can be used to replace a special tube, so as to repeat it, which significantly improves the brightness and intensity of the sound of low frequencies.
3. Bandpass of the fourth order can be applied to two chambers, in one of the subwoofer speaker placements, in the other chamber of the subwoofer placements. With this type of design, it is possible to regulate the frequencies that are created by a low-frequency speaker.
4. The bandpass of the sixth order may be the same principle, which is the first option, but it is also considered in the presence of an additional phase inverter. This type of construction looks like the maximum KKD, but even designing and folding is a rather laborious process.

Walking out of an overhauled bush, you can build visnovok, so the best option would be to prepare a box of a bass-reflex type, because. Vіn vіdrіznyaєtsya high pokaznik KKD and easy to prepare.

List of required materials

The order of the next is determined by the material, for which the box will be made. Vіn is guilty of buti mіtsnim and mother of soundproofing authority. You can vicorate plywood, chipboard or wood. Why is the tightness of the musical dynamics more important, but the material prepared is to blame. The stench is easy to process and buy in a warehouse of special difficulties.

Details needed for preparation:

• samonarizi for wood with a diameter of 5-6 centimeters;
• material for noise insulation;
• wooden bars with a span over 2 cm;
• drill, screwdriver and twist;
• rare colors and sealant;
• electric jigsaw;
• terminal;
• material for decorating outer sides;
• PVA glue.

Roof chair for the body

The technical documents of the skin subwoofer head indicate the necessary volume of the acoustic sounding cabinet. Vykhodyachi himself from the appointed by the clerk oblige, next to open the armchair. Razrahuvati obsyag can be for the formula:

de V - necessary obligation; h - height of the box; L - length and A - width.

The parameters of the length, height and width can be varied in any direction, vrakhovyuchi diagonal dynamics, podbirayuchi hand design for the car interior. Like the sound does not sound.

How to choose a box for a subwoofer

How to choose a box for a subwoofer in such a way that the speaker will be loaded with its strength?
This is how you feed the cicava with a rich chanuval of a warm sound, how to improve the audio system of your car. In our article, we know how to choose a box for a subwoofer, the same way, how you can win.
On the other hand, first of all, it is recommended to choose the type of speaker that will work with low frequencies. As a rule, fahіvtsі recommend zupinyati svіy vibіr on the speakers іz 10-12 inches. The very stench of today is popular and the most vicarious, like a subwoofer.

Subwoofer box

Today, it is accepted to separate a number of different boxes for a subwoofer (div.). As you can see, according to the type of box of that yogo design, there is no middle ground for the sound that is taken at the exit.
Father:

• The box is of a closed type, the largest extensions are in the prepared and designed look. In such a box, a low-frequency speaker will feel good. Pollipshat richly yogo acoustic characteristics. In addition, it is easier to make such a screen on your own.

• Bandpass box. Yogo is also called a box of the fourth order. Tsya design may be on the basis of the presence of dividing chambers in the middle. Ring out, tsі cameras buvayut different rozmіru. In one chamber, a loudspeaker (div.) is installed, and in the other - a bass reflex or a winder.

Note. The advantage of this type of box is its special construction, as a way to interchange frequencies.

• Box bandpass 6th order. Vіn commemorate vіdіznâієєє vіd vyscheopisannogo, zokrem, tim, scho maє shche two chambers in the middle.

Note. There are two types of bandpass on the 6th equal. Bandpass with one phase inverter and bandpass with two phase inverters. The rest is the most foldable at the design, then the building is seen in the design of the KKD.

• Bass-reflex box. Vіn maє a special handset is used.
  Vaughn vivodit poіtrya, without any additional sound. What is the cost of folding in the preparation of such a design, it is the middle between the bandpass and the closed box.

The music lover will tell you once again that it’s better to sound your choice on the bandpass. Ale, this design will be foldable for a person, as if in the beginning he took up self-preparation.
The box of the bandpass type has a lot of details, the creation of some kind of pov'yazane with the design of the tare with a rachunk. Even if it’s an hour and a day, you can ring up your vibir on them.

Note. Reading that design, expanding that design at our time can be trusted to computers. The special program WinLSD will help you to know the required volume, estimate the volume of the subwoofer, check the volume of details, etc.

On the other hand, the program described above is definitely not for a person who knows and needs high-specialized knowledge. That and now the stilts of flour, so you can take care of the preparation of a simple box, which exudes garnished yakistyu. Tse phase inverter, building the lowest frequency.

Robimo bass-reflex box

Then, with the choice of the box, they were appointed and when the hour came, go to the process of preparation.

Materials

We are in front of us in need of materials. As a rule, it is the fault of the storage warehouse, as it would be a miraculous material that wonderfully insulates the sound. Bagatosharova plywood is best for these purposes.

Note. At the extreme point of view, it’s impossible to know plywood, pіdіyde і chipboard.

In addition, prepare:

• Samonarizi in a quantity of 100 pieces, bagan 50-55 mm.
• What a soundproofing material.
• Rare colors or silicone.
• PVA glue.
• sealant.
• Shmatok carpet for 3 meters.

Tools

As soon as there are tools, then coming speeches will come:

• Screwdriver chi drill to the extreme.
• Klemnik.
• An electric saw and a planer like this.

Algorithm of the process

Also, a workable bass-reflex box for a 12-inch speaker. For this type of person, it is recommended to increase the volume of the box, which is 40-50 liters.

Below is a table of roses:

Note. It is even more important to put a strap on the railing of the dozhini, which goes through the walls of the case to the speaker. This parameter is protected, like the empty of the whole box - by the surfaces in the middle.

Father:

• Robimo opened the loudspeaker and the width of the phase inverter.

Note. For vykonannya vsіh opened, koristuёmosya electric jigsaw, pratsyuvati yakim already handily.

• We choose the width of the phase inverter.
• Krypimo її to the subwoofer (div.) - To the front panel.
• On all sticks it is necessary to walk with silicone, and more often with rare flowers. After whom burn the self-tapping.

Note. It is highly recommended to screw the screws back in, so as not to leave any empty holes. How to deprive them, tse can be known as the quality of the sound. Blame the resonant noise that deserves a normal sound.

Before the cob of the design, that selection of the box must be determined by the choice of dynamics. It is recommended to run your sound on 10-12 inch imported speakers, stink shards are most often found in car subwoofers and are best suited. How to choose a speaker for a subwoofer, we reported in the front article. The design of the box is also of great importance: in it, to lay the richness and the richness of the sound of low frequencies.

What are subwoofer boxes?

Use a copy of the screen type for the subwoofer. Vіd konstruktsії ducts without intermediary deposit sound, what you take away at the exit. Below are the most popular types of subwoofers:

The closed box is the simplest in preparation and design, which the name speaks for itself. The woofer is placed in a hermetically sealed wooden case, which improves its acoustic characteristics. It's easy to get a subwoofer in a car with such a case, you can use the lowest KKD.

Bandpass of the 4th order - the same type of subwoofer, a case of some kind of division into cameras. Both chambers are different, in one of them there are speakers, and in the other a phase inverter (polytroprovod). One of the peculiarities of this subwoofer is the soundness of the design to separate the frequencies, as if it were a diffuser.

The bandpass of the 6th order is considered as the 4th order of the presence of one phase inverter and one more camera. There are two types of bands in the 6th order - the first one has one phase inverter, and the other two (one of them is bright for both cameras). This type of box is the most foldable in the design, but it also has the maximum KKD.

Phase inverter - a subwoofer with a special tube in the case. Vaughn to vivodat repeat that secure additional sound from the rear part of the speaker. For the folding of the prepared sound, this type of sound is medium between the box and the bandpass.

If you want to get the best possible sound, you can sound your choice on bandpasses. Ale construction of this type may be impersonal details, yakі it is required to design and prorahuvat. All you can do is to work with the help of the special WinlSD program, so it’s not better to determine the optimal size and fit of the subwoofer, or create a 3D model, and also work out the size of all the details.

It’s a pity that this program needs only minimal knowledge in this area and it’s unlikely for a cross-country car enthusiast to get everything right the first time. Tim more, so that the program worked correctly, and the necessary deeds of the parameters of the dynamics, as well as not everyone knows. Yakscho V is not planning to take the fate of the zmagannya s auto-sound, for the sake of getting rid of bandpass.

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The phase inverter will be the best solution for a self-contained subwoofer. This type of box is a good one, because the tube (phase inverter) allows you to use the lowest frequencies. In fact, there was no harm in the sound, which spied the sound of the subwoofer and propelled the KKD.

What materials do we need to select a subwoofer?

The material for the preparation of the subwoofer box is responsible for the sound quality, sound and goodness. For whom vіdminno pіdіyde bagatosharova plywood or chipboard. The main advantages of these materials - available price and simplicity in the design. The stench to finish the mіtsnі and ensure good sound insulation. We will work a subwoofer made of 30 mm bagato-ball plywood.

We need to build a box for the subwoofer:

• Self-drilling on wood (approx. 50-55 mm, 100 pieces)
• Soundproofing material (shumka)
• Drill and screwdriver (or twist)
• electric jigsaw
• Rare flowers
• sealant
• PVA glue
• Carpet, approximately 3 meters
• Klemnik

Chair box for subwoofer

In this article, we will work a box for a subwoofer with a 12-inch speaker. Recommended drawer volume for one 10-12 inch speaker - 40-50 liters. It is not easy to open the box for the subwoofer, the scheme with panel sizes is approximate.

Wart to increase respect for the minimum distance from the walls of the body to the dynamics. Vono, like a box fitting, is protected on the inner surface.

Video instruction: how to build a chair for a subwoofer

Choosing a box for a subwoofer with your own hands

You can start picking up. We beat the 12-inch speaker Lanzar VW-124.


The first diameter is 30 cm, and first, it is necessary to check the opening of the loudspeaker. The minimum distance from the center of the diffuser to the wall of the subwoofer is 20 cm. Dali virіzaєmo otvіr pіd fazoіvvertornu shlіlinu, at buttov vіn maіr size 35*5 cm.


The replacement of the slot can vikoristovuvaty classic povіtroprovid — pipe. Now we select the bass-reflex slot and fasten it to the front panel of the subwoofer. We pass through the sticks with rare flowers and twist with screws.

It is important to tighten the screws tightly so as not to fill the voids. The stench creates a resonant chirp that resonates with the sound of a subwoofer.

We chose the side walls of the box, frontally covered with their rare flowers, and screwed tightly with screws.


On the back cover of the box, it is necessary to see a small opening under the terminal block. Z'єdnuєmo usі parts of the body. Let's change the one who correctly saw and creaked all the parts.


We insert the speaker. We marvel, we darling.


Let's move on to the inner lining of the box. First, you need to glue all the sticks and gaps with epoxy glue and sealant. Dali for additional PVA glue glued on the entire inner surface of the box soundproofing material.




Now the entire outer area of ​​the box is covered with carpet, including the slot of the phase inverter. Creeping yoga can be done with epoxy glue or for the help of a furniture stapler.


Next, insert and firmly screw on the speaker. The subwoofer may be ready, it was no longer necessary to stretch the darts from the speaker to the terminal block and plug it in.


We have added additional cupping, but yoga can be done with your own hands. It’s easy to do it, the oskilki will require knowledge of practice in the radio engineering gallery. It is also possible to create ready-made sets of schemes for radioamators, for the Meister-KIT station, and independently carry out the folding of the pilot. United vymoga to pіdsilyuvacha — yogo maximum tension may be less, lower maximum tension dynamics.

See also the video about the preparation of a self-contained subwoofer for 2 speakers

Robimo DIY stealth subwoofer

Nabridlo to carry a majestic box near the trunk? Todi stealth subwoofer is just creations for you. This unique type of case is practical, lower classic drawer. Vin do not stand in a square box in the middle of the trunk and take less than a month. Most often, stealth is installed at the inner part of the krill, sometimes in the niche is the replacement of the spare wheel. The minimum volume of the box, which requires a 10-12 inch speaker for normal operation is 18 liters.

To prepare a passive stealth subwoofer, we need:

• low-frequency speaker;
• zahisnі grati that socket for connection to podsilyuvacha;
• wire for connecting the speaker to the outlet;
• bagatoshar plywood or chipboard (thickness 20 mm);
• a small piece of fiberboard;
• epoxy glue;
• penzlik;
• cloth;
• mounting tape;
• polyethylene slinky;
• samonarizi on wood;
• drill, jigsaw.

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After choosing a place, where stealth will be installed, let’s start the trunk and proceed to the preparation of the hull. You can remove the lining of the trunk there, where you will install a subwoofer, to move it closer to the wings. Nasampered with a stele on the trunk lining with a polyethylene lining. It has two functions: it protects the lining of the trunk with epoxy glue and allows you to strengthen the bottom of the subwoofer until it is screwed on. Then we glued the inner side of the wing with mounting tape to two balls.


We cover the cloth with small pieces, approximately 20x20 cm. On the masking tape we put the pieces of cloth and glue with epoxy glue. Overlap the cloth more tightly, so that there are no obvious sticks and seams.


We stick balls of cloth one on one, at the same time smearing them with epoxy glue, until the thickness of the sheet reaches 10 mm (approximately 4-5 balls).


The material was caught in about 12 years. To speed up the process, you can beat the lamp. Now the bottom of the subwoofer is visible and glued to our case. The stick can be sealed with sealant or glued with epoxy resin.


In this way, the shape needs to be pidgnati under the trunk loops, so that our self-contained subwoofer does not care for you to curl up. After that, as we cut all the curtains, we can see from the chipboard side walls and the top cover. The round part is made from plywood, we were robbed "by eye".

It would be easier for the plywood to give a rounded shape, it is necessary to wet the cob, give it the necessary shape, fix it and let it dry.

Chipboard sheets must be glued with epoxy adhesive or sealant, and then screwed together. The fiberglass box is also glued behind an additional epoxy resin, and if it is dry, it is creaked with screws.


For short sealing, you can glue the seams again. We applied one more ball of epoxy glue and pressed the construction with a squeak, so that the glue took up more quickly.


We can then change the front panel and look at it. Behind the help of a jigsaw, you can see a speaker. In order to securely fasten the front panel to the case, it is necessary to tighten it with screws from the sides. Therefore, on the entire inner part of the panel, it is necessary to install bars, on the inside of the troch, a larger, lower part of the plywood (in our case, we attached the bars on the frame of about 25 mm to the edge of the panel). Zavdyaki tsomu we can fix the front part of the animal, from below, from the sides, and above the head. Nadiyano attach її to a rounded element.


Virіzaєmo otvіr at the end for the outlet.


For example, it was decided to add two balls of epoxy glue to the bent part of the housing for the stealth subwoofer.


Remaining folding is carried out: we install the socket and connect the speaker to it, but do not screw it on yet. Dali There are two options - turn on the subwoofer, or fit it with a carpet. Farm the troch more folded, for that which needs a little more surface. For whom we won universal putty.


Virivnyuemo everything with an emery paper, gruntuyemo and farbuyemo. Subwoofer ready!