Схемы подключения сабвуфера: Схемы подключения сабвуферов (Как подключить сабвуфер с катушками 1/2/4+1/2/4 Ом)

Подключение активного сабвуфера. Как подключить активный саб по схеме

Активная низкочастотная система, в отличие от пассивной, содержит в своей конструкции не только мощный басовый динамик, но и полный усилитель низкой частоты, амплитудно-частотная характеристика которого скорректирована на усиление определённой полосы звукового диапазона. Подключить активный сабвуфер несложно, но нужно соблюдать некоторые правила, особенно при подаче электропитания от автомобильного аккумулятора.

Как подключить активный саб

Подключение низкочастотной автомобильной системы можно разделить на два этапа. Это подключение активного сабвуфера к магнитоле и соединение клемм питания с аккумулятором. Эту работу могут сделать в автосервисе, но большинство автомобилистов предпочитают подключать басовую акустику самостоятельно. Схема подключения активного сабвуфера не считается сложной, но при этом нужно соблюдать все технические требования. Особенно это касается подключения автомобильного аккумулятора к усилителю низкой частоты.Выбор кабеля электропитания намного важнее, чем выбор провода, соединяющего автомобильную магнитолу и вход усилителя НЧ.Для обеспечения корректной работы мощного усилителя кабель питания должен иметь соответствующее сечение.

Провода для подключения активного сабвуфера должны быть медными и многожильными. Для маркировки силовых кабелей применяется американский стандарт AWGв сокращённом вариантеGa. Они маркируются от 0Gaдо 14Ga, причём, чем меньше цифровое обозначение, тем больше сечение кабеля. Выбор силового кабеля зависит от мощности активной звуковой системы, которая напрямую связана с потребляемым током и расстоянием от источника напряжения до оконечного устройства.Чтобы определить, каким кабелем подключить активный сабвуфер можно воспользоваться приведенной таблицей.

Потребляемый ток системы	до 1м	до 2м	до 3м	до 4м	до 5м	до 6м	до 7м	до 8м
0 — 20А	14ga	12ga	12ga	10ga	10ga	8ga	8ga	8ga
20 — 35А	12ga	10ga	8ga	8ga	6ga	6ga	6ga	4ga
35 — 50А	10ga	8ga	8ga	6ga	4ga	4ga	4ga	4ga
50 — 65А	8ga	8ga	6ga	4ga	4ga	4ga	4ga	2ga

Здесь указан потребляемый ток и расстояние до усилителя низкой частоты. Наибольшее сечение силового кабеля потребуется при потребляемом токе до 65 ампер и размещении активной звуковой системы в багажном отсеке автомобиля. Для того чтобы избежать «провалов» в звучании при эксплуатации очень мощных акустических колонок, в цепь питания, параллельно силовым клеммам усилителя, подключается конденсатор большой ёмкости. Он накапливает электрическую энергию и отдаёт её в систему на пиках мощности, когда напряжения автомобильного аккумулятора не хватает и звук в колонке падает. В цепь электропитания, на расстоянии 10-15 см от аккумулятора, нужно установить предохранитель. Он не допускает перегрев силового кабеля и его возможное возгорание. Прокладка кабеля электропитания от моторного отсека до багажника должна выполняться через заводские отверстия. В местах пересечения металлических поверхностей на кабель должны быть надеты резиновые или пластиковые муфты. Провод не должен соприкасаться с металлом, так как в этих местам может произойти нарушение изоляции и короткое замыкание.

Как правильно подключить автомобильный сабвуфер

Для того чтобы подключить активный сабвуфер к автомагнитоле можно использовать стандартные провода, которые продаются в комплекте с силовыми кабелями.В установочный комплект входит всё, что нужно для работы, включая концевые клеммы для подключения аккумулятора и пластиковый гофрированный рукав. Подсоединение автомобильного сабвуфера к автомагнитоле осуществляется акустическими кабелями, оснащёнными разъёмами RCA или «Тюльпан» или иным способом. Коаксиальный кабель с разъёмами «Тюльпан» подойдёт в том случае, когда автомагнитола имеет специальное гнездо. Оно может обозначаться «SWOUT»,«SubOut» или«Subwoofer». На штатных магнитолах такие разъёмы отсутствуют, а устройство оснащено колодками с ножевыми контактами.Для подключения активной звуковой системы проще всего использовать готовый адаптер, который подключается к магнитоле. Входной сигнал подаётся на адаптер через стандартную колодку, а выходу подключается кабель с разъёмами RCA.

Устройство может иметь любую конструкцию, но принцип подключения у всех моделей одинаковый. Адаптер может иметь встроенный сумматор. В этом случае правый и левый каналы объединяются, и на вход сабвуфера подаётся монофонический сигнал. Подсоединить активный сабвуфер можно и без адаптера, но придётся искать кабель с ножевой колодкой на одном конце и «Тюльпаном» на другом.

Схема подключения активного саба

В процессе прокладки кабелей нужно соблюдать определённые правила. Чтобы предотвратить возникновение наводок и помех, силовой и сигнальный кабели нельзя укладывать одним пучком. Лучше если провода проложены по отдельности. В зависимости от мощности акустической системы нужно обязательно подсчитатьноминальный ток предохранителя. Нельзя ставить плавкую вставку, рассчитанную на очень большой ток, иначе провода будут гореть, а предохранитель останется целым.

Кроме кабелей электропитания и сигнального провода к активной акустической системе подключается провод дистанционного управления. У автомобильных магнитол этот провод на колодке питания всегда синего цвета. Он имеет обозначение «System Remote Control». Точка для его подключения на активной колонке обозначается аналогично или в сокращённом виде. Через этот провод на систему электропитания акустической системы подаётся управляющий потенциал + 12 вольт. Система дистанционного включения нужна, чтобы вместе с автомобильной магнитолой включался усилитель низкой частоты. Подключить провод к активному сабвуферу напрямую совершенно не обязательно. Одновременное включение звуковых устройств требуется не всегда и многие подключают активный сабвуфер через обычный тумблер. Это позволяет включать автомагнитолу без мощного баса.

 90000 Subwoofer Wiring Diagram that Helps You SetUp Your Subwoofer 90001 90002 Learn how to correctly set up your subwoofer wiring diagram the first time. 90003 90002 Need to learn how to properly wire those subwoofers? 90003 90002 90003 90002 Depending on the power of your sub amp you need to present the correct load to the amplifier. This is done by making sure the sub drivers are wired correctly. 90003 90010 Two different wiring techniques 90011 90002 We will use a combination of series and parallel wiring to achieve our goals.When wiring multiple subs the more subs you use, more possibilities will (and complexities) arise. 90003 90014 Parallel wiring 90015 90002 will the impedance of each subwoofer’s resistance. So if you a set of 2 ohm subs and wire them in ‘parallel’, you now have a 1 ohm load for the amp. 90003 90002 This is done by wiring the positive of the amp to the positive of both subs. This works for dual voice coil subs too. Just wire the positive to the positive of both drivers. This will essentially halve the ohm load resistance of each coil.90003 90002 This makes a much harder load for the amp, so be sure your amp can handle (half of whatever each coil’s resistance is alone). So two 4 ohm subs in parallel will be a 2 ohm load. 90003 90014 Series wiring 90015 90002 If you wire those same subs in ‘series’ you would have a 4 ohm resistant load. 90003 90002 This is done by wiring the positive the amp channel to one positive of one driver. Then take a wire from the negative of that same driver and jumper to the positive of the next driver.Then take a jumper and go from the negative of the second driver back to the negative of the amplifier. 90003 90002 This is double the load of the two subwoofers. So if you are using two 4 ohm woofers. You now will have a 8 ohm load when wiring in series. 90003 90002 You can chain many different drivers together in this way by using a combination of series and parallel while adding drivers and getting a load impedance your amp is capable of driving. 90003 90002 Just remember, you can not necessarily get a load that will work with all amplifiers and all drivers.90003 90002 The same is true for dual VC (voice coil) and 4 VC voice coil subwoofers. Each coil is considered on its own, so you must wire them correctly or you could damage both the driver or the amplifier pushing the speaker. 90003 90002 90003 90014 Wiring the sub into the rest of your system 90015 90002 90041 connection to the receiver 90042 90003 90002 90041 Step 1: 90042 Look for a sub pre out on the back of the receiver or processor. This would be a small RCA jack, often black in color that says sub.It would be under the heading outputs or pre-out. This is the output that will send the audio signal to your sub using sub woofer cables. 90003 90002 This RCA jack will send audio from your receiver to the subwoofer using the built in crossover of the receiver. By using these connectors you will not need to use the crossover that is built into the subwoofer itself. 90003 90002 If your subwoofer can not disable its own crossover just set the crossover knob to its highest setting. You do not want two crossover filters to be used at the same time as using both of these will double the slope for the subwoofer, making the bass roll off too steep at the selected frequency range.90003 90002 90041 Step 2: Setting up the crossover within your receiver or processor 90042 90003 90002 Within your menu system you will need to set the crossover to the correct setting that your main speakers and subwoofer can handle. For small speakers, this will be between 100Hz and 200Hz. Many small speakers can not handle bass lower than 150Hz or so. If you do not send the correct signal damage to your voice coils may occur. Try our ELA-1 subwoofer kit, its affordable and offers all the performance of the ELA-1 sub for less investment.90003 90002 90003 90002 You can also use the stereo outputs and run stereo signal to your subwoofer. For this you will need a set of stereo RCA cables and connect to both the right (red) and left (white) jacks on the back of the subwoofer. 90003 90014 Here’s what the signal flow will look like: 90015 90002 Just follow the signal flow beginning with the DVD player. 90003 90002 • From; DVD player outputs (can use digital or multi-channel outs) 90003 90002 • To; Receiver inputs digital or (can use multi-channel inputs also) 90003 90002 • From; receiver subwoofer output (or sub pre-out) 90003 90002 • To; subwoofer input (you may have both a red and white RCA jack, just connect to one of them) 90003 90010 Where some users get confused 90011 90002 The receiver actually has its own amplifiers built in and also drives the main speakers.So the receiver serves double duty. It directly drives the main speakers and also provides the signal for the subwoofer, but the subwoofer itself amplifies the signal from the receiver. The receiver should just be performing the crossover of the subwoofer only in this installation. 90003 90002 For some installations you may wish to have the subwoofer x-over perform the filter slope for itself. When you have large main speakers and do not need to keep the bass out of the mains, then use the crossover on the subwoofer only.90003 90010 Summary for subwoofer wiring diagram 90011 90002 The signal will run from the outputs of one machine to the input of the next machine. You need to establish the source components which are the DVD player or computer, then to the receiver, and finally the subwoofer. 90083 Go back to the top of page! 90003 .90000 The Speaker Wiring Diagram And Connection Guide — The Basics You Need To Know 90001 Home »How-to guide» The Speaker Wiring Diagram And Connection Guide — The Basics You Need To Know 90002 90002 90004 We all enjoy music and speakers make that possible — but it’s confusing if you’re not sure 90005 how 90006 to connect them the right way. 90007 90004 In this post, you’ll find clear and detailed speaker wiring diagrams that to help (and that you can print out if you like, too!). 90007 90004 I’ll go into detail about the right and wrong way to wire speakers and connect them properly to your stereo or amplifier.It’s actually pretty simple once you learn the basics. 90007 90012 Contents 90013 90012 90015 Printable speaker wiring diagram 90016 90013 90004 Click on the image to enlarge it or click here for the Adobe .pdf version you can download and print. 90007 90004 90021 90021 90007 90012 Speaker basics and speaker wiring explained 90013 90026 1. What is speaker impedance? (The «Ohms» rating) 90027 90004 Speakers, much like other electromechanical devices, all have an electrical resistance to the flow of electrical current, much like a standard resistor, a light bulb, or many common items you’re familiar with.90007 90004 The difference is how they behave when music is present when they’re connected to a musical amplifier of some sort. 90007 90004 The resistance value comes from a long coil of wire inside each speaker called a 90005 voice coil 90006. A voice coil is a coil of wire that, when placed inside a magnetic field, makes the speaker move and produce sound when driven by an amplifier. 90007 90004 90005 90038 90038 90006 90007 90004 90005 Speakers contain a long wound loop of wire called a voice coil.Loops of wire have a property called inductance which affects a speaker’s resistance value depending on the frequency (sound range) being played. 90006 90007 90004 As they have electrical properties that include inductance and capacitance, their «total resistance» can actually change with the music slightly. Because of this, there’s some extra math needed to figure out the total resistance. 90007 90004 The word used to describe this is called 90005 impedance 90006. 90007 90004 90015 Speaker impedance is just a more advanced way of finding the total resistance, and by tradition is measured in units called «Ohms.»90016 90007 90004 The good news is that you do not have to worry too much about the details — it does not matter for basic speaker use, and long as you understand the basic rules you’ll be fine! 90007 90026 2. Stereo and amplifier minimum impedance ratings 90027 90004 All amplifiers of any type — where it’s a car stereo amplifier, home stereo receiver, home theater amplifier, and so on, have a minimum Ohms (impedance) rating. It’s important that you pay attention and do not exceed the minimum speaker impedance rating.90007 90004 This is because as the impedance is lowered, the electrical current increases and the stereo has to do more work. This increases the amount of stress and heat it has to handle. 90007 90004 If your stereo is labeled by the manufacturer as being «8 ohm speaker compatible» or similar, that means connecting lower impedance speakers can cause excessive heat and possible damage very quickly. 90007 90004 For example, connecting a 4 ohm speaker to an amplifier which is labeled as working with 8 ohm speakers would mean it would have to produce 90015 double 90016 the electrical current to the speaker! 90007 90004 90071 90071 90007 90004 90005 Image of the rear of a home stereo receiver / amplifier.The recommended speaker impedance ratings are usually listed above the speaker wire posts. A home stereo, for example, may often list 6-16 ohms as being ok for use. 90006 90007 90004 Also, attempting to wire two 8 ohm speakers in parallel to an 8 ohm stereo would have the same effect. (Two 8 ohm speakers in parallel is equal to 4 ohms total that the amp will see) 90007 90004 I’ve seen many attempts by people who had friends who claimed they could «boost the power» or «get more power» by some claimed trick, but 90015 it does not work.90016 They ended up with a burned-out amplifier. 90007 90004 An amplifier can only handle so much heat and stress before it fails, so be sure to observe these rules. 90015 Be sure you wire speakers to meet the minimum Ohm rating you need. 90016 90007 90088 90004 Remember: do not use a speaker impedance below the rating given by the manufacturer. Overheating or permanent damage can result. I’ve seen it happen! 90007 90026 3. What is speaker polarity? 90027 90004 Speakers are different than other devices in that they work using alternating current (AC) instead of direct current (DC).This is good news! It means you can not harm your speakers in most cases by having the positive ( «+») and negative ( «-«) wiring reversed. 90007 90004 Unfortunately, it gets just a 90005 little bit 90006 more complicated when we use more than 1 speaker. 90007 90099 Speak polarity and why you should match speaker connections 90100 90004 As I mentioned, speakers work by moving a cone back and forth in order to produce sound. If you wire 2 speakers in a stereo with 90015 different 90016 polarities (for example, one has positive and negative wired as labeled, and the 2nd speaker has the opposite) an interesting thing occurs: they’re 90015 out of phase and some sound cancels out 90016.90007 90004 The result is a strange and poor sounding stereo. In most cases, you’ll notice a lack of bass sound and it will not sound pleasing to the ear as expected. 90007 90004 90110 90110 90007 90004 90005 When speakers are wired the opposite of each other sound waves cancel out. When wired the same, sound waves add together for more sound. 90006 90007 90004 Speakers that are wired differently sound poor because much of the sound is canceled out. Basically, it’s simply because sound waves from one speaker are moving in the opposite direction of the other speaker — and if they’re close to the same time and frequency range, often they cancel out.90007 90004 This is why when 2 woofers are placed in a box and are wired in parallel but with opposite connections to each other, they are «out of phase» and have almost no bass! It’s because they are doing the opposite work rather than working together to produce more sound. 90007 90004 While one is moving up, the other is moving the opposite direction, and so on. 90007 90004 So the most important thing here to remember is to 90015 wire speakers consistently the same way as each other 90016.90007 90026 4. Wiring 2-way and 3-way speakers 90027 90004 2-way speakers, such as home stereo or car audio component speakers, are those which come as a pre-designed speaker set and use a crossover. The job of a crossover (also called a 90005 passive crossover 90006, because it use basic capacitors and inductors rather than electronics) is to restrict the music production each speaker tries to produce. 90007 90004 For example, tweeters can not reproduce bass frequencies (and can in fact be damaged by them) so a 2-way speaker crossover is used to prevent this.Similarly, a woofer can not produce high pitch sounds well and is prevented from doing so. 90007 90004 Unlike standard separate speakers, 90015 2-way and 3-way speakers that have a crossover can only be used in parallel and not in series 90016. 90007 90004 This is because unlike separate speakers with no crossovers, in this case many sounds will be filtered out. What this means is that little to no sound would be produced if another 2-way speaker is connected in series. 90007 90004 90142 90142 90007 90004 Therefore if you have a home stereo or car stereo in which 2-way speakers are used, you’ll have to add more 2-way speakers (if the total impedance can be supported by the amplifier) ​​or add more amplifier channels for more sound.90007 90026 5. Doubling the number of speakers or amount of power does not double the volume 90027 90004 In some cases, more speakers can be added to increase the amount of volume you can get or to place speakers in more rooms, more locations in your vehicle, and so on. You also may have wondered what would happen if you bought an amplifier with twice the power of your present one. 90007 90004 There’s one important thing to understand, however: 90015 having 2 or 3 speakers instead of one does not double or triple the sound.It increases a few decibels (dB) for each speaker added. 90016 90007 90004 90015 Doubling the power does not double the volume either. 90016 90007 90004 This is because of how the human ear works and the physics of sound, along with how speakers work and how much volume they can produce for a given amount of power. 90007 90004 Generally speaking, the human ear will hear a very small amount of volume increase for each doubling of acoustic power: about 3 decibels (dB). For most people, the small amount of volume increase you notice when turning up a volume knob 1 notch is somewhere around 3dB.90007 90004 90015 Example volume produced by a typical speaker at different power levels: 90016 90007 90167 90168 1W = 89 dB 90169 90168 2W = 92 dB 90169 90168 4W = 95 dB 90169 90168 8W = 98 dB 90169 90168 16W = 101 dB 90169 90168 32W = 104 dB 90169 90168 64W = 107 dB 90169 90168 128W = 110 dB 90169 90184 90004 So as you can see, 90015 doubling the amount of power you can drive a speaker at does not mean you’ll double the volume. 90016 It increases it a very small amount (as far as your ears are concerned).90007 90004 You can also see from above that really cranking the volume takes a lot of power! 90007 90012 How to get more volume from speakers 90013 90004 The best ways to get more volume in most cases are: 90007 90167 90168 Use more efficient speakers (speakers that produce a higher dB volume at 1W of power — higher is better) 90169 90168 Add more speakers if you have an amplifier that can support it 90169 90168 Use higher-power rated speakers and a larger power amplifier if high volume is your goal 90169 90184 90004 For most people an average and good stereo amplifier can produce enough volume to fill a room or vehicle and turn up the volume from time to time.90015 I like to use 50W or higher per channel as a good rule of thumb when buying an amplifier. 90016 90007 90012 How to read speaker positive and negative labels (+ and -) 90013 90004 Home stereo and car speakers normally often use a red or plus sign «+» to indicate the polarity for the speaker wiring terminals which you connect your wiring to. 90007 90004 Here are a few things to know there as well: 90007 90167 90168 In some cases, a 90015 black dot or a red or black stripe 90016 is used to mark the positive terminal 90169 90168 If a speaker has terminals of 2 different sizes, the larger of the 2 is normally the positive one 90169 90168 For speakers with wire already attached, typically the brass or golden-colored wire is the positive one 90169 90168 For speakers with wire attached but same colored wires, most have some small printing on the positive wire — be sure to check closely 90169 90184 90012 Summary 90013 90004 Here I’ve provided you with a speaker diagram showing basic connections, I explained several important things you need to know about speakers and speaker wiring.Hopefully I’ve given you more understanding about how to connect speakers and get the most enjoyment out of your system. 90007 90004 Have questions, comments, or suggestions? 90015 Be sure to leave a comment below or send me a message. 90016 90007 90004 Confused about tweeters? Here’s a helpful guide explaining what tweeters are and what they’re used for. 90007 90004 Interested in bridging your car amp? Find out how to bridge a car amp in this post. 90007.90000 WIRE DIAGRAM FOR SUBWOOFERS — Auto Electrical Wiring Diagram 90001 90002 90003 90004 Subwoofer Wiring Diagrams — How to Wire Your Subs 90005 90003 There are many ways to wire subwoofers and amplifiers together. The ideal setup is when subs and amps match their impedance and power capabilities to optimize performance. In this article, we’ll help you find the best subwoofer wiring diagram for hooking up your system. [Ve este artículo en español] 90003 90004 Subwoofer Wiring Diagrams | the12volt 90005 90003 Disclaimer: * All information on this site (the12volt) is provided «as is» without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use.Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information. 90003 90004 How to Wire Subwoofers: 13 Steps (with Pictures) — wikiHow 90005 90003 MethodTipsWarnings Know the difference between wiring in series and in parallel. There are two ways to connect your wires, and it matters which way you choose. You will want to wire in series whenever you would like to raise the impedance of your system and wire in parallel whenever you would like to lower the impedance of your system.Wiring in series means that you start by connecting the positive output Understand what effect different wiring has on your power output. These two wiring schemes have dSee all 3 steps on wwwhowViews: 20K 90003 90004 Subwoofer Wiring Diagrams | MTX Audio — Serious About Sound® 90005 90003 Step # 1 — Choose the # of subwoofers you will wire in your system from one amplifier output. Step # 2 — Specify 2 or 4 ohm single voice coil OR 2 or 4 ohm dual voice coil subwoofer (s) The Subwoofer Wiring Diagram tool will then display two wiring options with the final impedance at the amplifier.90003 90004 Subwoofer Wire Diagram — Raffaella Milanesi 90005 90003 Subwoofer Wire Diagram. subwoofer wiring diagrams — how to wire your subs there are many ways to connect subwoofers to an amplifier our wiring diagrams will help you find the best way to wire your subs and amps so you ll the subwoofer wiring diagrams learn how to wire your sub and and with our subwoofer wiring diagrams learn how to properly connect your car subwoofer and amplifiers the first 90003 90004 Subwoofer Wiring Calculator with Diagrams — How To Wire 90005 90003 Welcome to the CT Sounds Subwoofer Wiring Wizard.Our subwoofer wiring calculator allows you to figure out how to wire your Dual 1 Ohm, Dual 2 Ohm, and Dual 4 Ohm subwoofers in several different qualities. If you are wanting to know how to wire your subs look no further than our wire diagram. 90003 90004 How To Wire A 4 Channel Amp To 4 Speakers And A Subwoofer 90005 90003 PDF fileHow To Wire A 4 Channel Amp To 4 Speakers And A Subwoofer (Diagram And Notes) System 1: Using a 4 channel amp rated for 2 ohms stereo, 4 ohms bridged. Each front amp channel is wired with 2 speakers in subwoofers, or single dual voice coil 4Ω sub.wired for 2 ohms. 90003 90004 Subwoofer Wiring Diagrams for Two 4 Ohm Dual Voice Coil 90005 90003 Subwoofers, Enclosures, & Calculators: Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information. Top 90003 90004 Subwoofer, Speaker & Amp Wiring Diagrams | KICKER® 90005 90003 The following diagrams are the most popular wiring configurations. You can also find additional wiring diagrams in the KICKER U app for iOS or Android.90003 90004 How To Wire Subwoofers — Parallel vs Series — Single Voice 90005 90003 James shows you how to wire your subwoofers in Parallel or Series, explains the difference between Single and Dual Voice Coils, and teaches you how to 90003 90004 Related searches for wire diagram for subwoofers 90005 90003 how to wire subwooferssubwoofer wiring wizardsubwoofer wiring calculatorrockford fosgate wire wizardspeaker wiring diagramsrockford fosgate wiring diagram8 ohm speaker wiring diagramsubwoofer wiring diagram ohms 90047 .90000 Subwoofer Amplifier Circuit Diagram using IC TDA2030 90001 90002 If Subwoofer in your music system is not producing enough bass then you can use this simple DIY circuit to enhance the Bass. In this project we are going to design a 90003 Subwoofer Amplifier Circuit Using IC TDA2030 90004 with few cheap components. This TDA2030 Amplifier can produce 14watt output and this can be increased upto 30watt by using another TDA2030. Also check our previous Audio Amplifier circuits: 90005 90002 90005 90008 Required Components: 90009 90010 90011 Audio jack pin — 1 90012 90011 TDA2030 IC — 1 90012 90011 Resistors — 100K (3), 4.7 K (1), 10 ohm (1) 90012 90011 Capacitor — 100 mf (1), 0.1 mf (2), 2.2 mf (2), 22mf (1) 90012 90011 Diode — In4007 (1) 90012 90011 Speaker (1) 90012 90011 Battery — 12 V (I used SMPS) 90012 90011 22k variable resistor-1 (To adjust volume if needed) 90012 90027 90002 90005 90002 90003 Features and Pin Detail of TDA2030 Amplifier: 90004 90005 90002 TDA2030 can work with the range of voltage between 9 V to 24 V with total harmonic distortion of 0.08. It has the ability to deliver the output of 18 W.Below is the Top View and Pin Diagram of TDA2030 from its datasheet: 90005 90002 90037 90038 90005 90002 90005 90008 Circuit Diagram and its Working: 90009 90002 90045 90005 90002 Above is the circuit Diagram for this 90003 TDA2030 based Amplifier Circuit. 90004 We have connected a 2.2uf capacitor in series to the non-inverting pin of the TDA2030, here it is acting as the 90003 High Pass Filter 90004. So that it allows only the high frequency audio signal. There is a resistor (R4) between pin 2 and 4 we called that resistor as 90003 Feedback Resistor 90004.This feedback resistor is used to obtain the gain. If the feedback resistor is improper then the subwoofer amplifier will not work properly. 90005 90002 In the circuit diagram, resistor (R1) and a capacitor (C2) are connected in series, with pin 2 of the TDA 2030 to suppress the noises in the audio signal. Pin 3 is grounded, means connected to negative terminal of power supply. The output of the TDA2030 is connected with the series capacitor of the value 2200uf to allow amplified signal to the speaker.The pin 5 is having a resistor of 100k which functioned as the voltage divider biasing. This sub-woofer circuit has the capacity to deliver 12 W output. We can we can use speaker of 4 to 6 ohm speaker. It will be better if we use a heat sink to remove the high temperature in the TDA 2030. If necessary you can also add a cooling fan for the better working. 90005 90002 90058 90005 90002 90003 For the volume adjustment we are using 22 kilo ohm variable resistor 90004. Connect the audio signal wire to the any one end of the variable resistor and connect the center pin to the input signal C1 of the capacitor.And connect the ground to the other end of the variable resistor. By changing the variable resistor we can change the volume of the subwoofer of td2030. IN4007 diode is used to avoid interchange of polarity of IC to avoid from burning and two capacitors C7 and C6 are used to eliminate the noises present in the power supply. The resistor R6 and C5 are also helps to avoid the unwanted the noises in the speaker (Blur sounds). I used 12v smps as power supply to power the entire circuit. 90005 90002 90005 90002 90003 For Connecting the 3.5mm Audio jack 90004, Solder one wire to the stereo jack ground pin and one wire to either left or right pin. In below picture blue wire is ground and yellow wire is audio signal. Then connect the audio jack to mobile or laptop to enjoy music. 90005 90002 90071 90005 90002 90005 90002 So this is how, we can easily build 90003 the Subwoofer amplifier circuit using TDA2030 90004. Below is the Demonstration 90003 Video 90004 for this amplifier circuit. 90005 .