check the GND connection .........most of the time its the main fact.
All pins are shown in the diagram/pic so plz follow it carefully
simple rebuild the circuit
yes it is
its all written already bro. read it. FOR VOLUME = 100K
will be needing little changes. specifications depends on circuit and what changes done on it. can't say it now have to change it first.
In India almost 300/- all of it
what are you saying bro ???? """How much is the cost in making speaker also?"""" do u really want to make that speaker at home ??? or by all urself ????
You may try LM3914 based circuit. Google it
The said LM4440 amplifier could be easily done this, just remove the 5v output part and use a 12v 2amp power supply