Power Amplifier

This circuit use IC TDA1004A to main operation .IC is very nice and durable if used properly and correctly, by the way supply the correct voltage , don't supply more voltage than 20 volts, because it can damage the IC. This circuit suitable for subwoofer speakers, but this amplifier  is mono.See schematic and troubleshooting below : If the circuit above not working , posible cause is on : Supply voltage. IC Damaged or installation inverted. Component damaged . Installation components inverted. Line break PCB. Input not connected or input connect to ground. Output speaker not connected.

Boxes are made not based on theoretical , but using the "feeling" that I was the proper size. box if you want a more orderly manner, please use the guide and the calculation of the size of the subwoofer box making a widely circulated on the internet. I took the box with the type of box design for the simple reason ventilated and easy to make. specification of the box that I created can be seen in the picture. The following are the measures that exist in design subwoofer box : This box design is not in the specialize for use in cars, such a box is just perfect for a home audio system that is usually used for DVD media player, computer, or game console. subwoofer box actually has a variety of good design for car audio, active speakers, multimedia, and home theater

Subwoofer power amplifier circuit based on IC OPA541BM very suitable for use in subwoofer speakers, these amplifiers possess excellence in sound issued because the sound is very clear and issued in accordance with subwoofer speakers in a low tone. Subwoofer power amplifier IC OPA541BM Circuit

Subwoofer booster circuit is used to enanching or boosting or increase the subwoofer amplifier, but it also can improve the quality of the bass sound on an amplifier   or High Power Amplifier . Subwoofer booster circui / bass enhancer circuit based on the IC 4558 and TL074 or commonly known as IC op-amp , its suitable to be an boosting in subwoofer system, which together with some components. For this subwoofer booster / enhancher circuit using voltage of 12 V + , 12V - , and ground. To be in accordance with the power of the speakers and amplifiers , the Subwoofer booster circuit / subwoofer enhancer is also equipped with a subwoofer volume setting on the R9 and R12 use 20 K ohm trimpot. Issued a circuit of subwoofer output is quite high , making it suitable for some speakers. Subwoofer booster circuit Part List : R1 = 22K R2 = 100K R3 = 220R R4 = 220R R5 = 220R R6 = 10K R7 = 4K7 R8 = 1K R9 = 20K Trim R10 = 150K R11 = 22K R12 = 20K Trim R13 = 4K7 R14 =2K2 R15 = 220R R16 = 220R R1...

Here I make a stereo power amplifier with IC TDA2003, but actually i made it with 2 IC , so that a stereo amplifier . Construction is very simple and easy. I only need 2 TDA2003 mono amplifier circuit , and then combined into one. Then the transformer ,  the transformer that i use here is the transformer 10A , so that the power released is greater. Grid power amplifier using the former from the box 10A adaptor , :-) decent can still be used . To view the location of components inside the box , see below : Top Right Top - Right Wow .,.,this amplifier is very good if using a transformer 10A, issued no buzzing sound , and strong for high bass , just nice deehh..,.,,.,.

THis is very nice amplifier circuit , because High output , and voltage required is also not too large, and suitable for th subwoofer speaker.This circuit use IC TDA1102 ,  Minimum require voltage 6 volt and maximum voltage 16 volt with impedance 4 ohm . This circuit perfect those of you wear the speakers subwoofer especially in the small room , like in the car. See circuit subwoofer below :