Hi, I'm a newbe to building amplifiers and even electronics. I do it as a pass time hobby. I wanted to build a 40W amplifier and also a speaker box with a sub woofer and tweeters and so. I don't know weather it is true but a driver circuit is needed to make the sub woofer to work. I just need information and a circuit that best suits me to build one. And also basics of how to give the connections of the sub-woofer to the sterio amplifier
go to Decibel Dungeon and read read read.
Then go to ESP and read read read.
Then come back with a question, either amps in the amp section or speakers in the speaker section.
Then go to ESP and read read read.
Then come back with a question, either amps in the amp section or speakers in the speaker section.
Yes, it is true; you need a seperate circuit for a subwoofer. If you do a Google search for DIY 2.1 amplifier kit you'll find plenty of options. This is only one- TDA2030A 2.1 Audio Power Amplifier Subwoofer Board Kit for DIY - Newegg.com
You can also buy them pre-built. There are plenty of options for speakers too. You can go with a typical 2 channel amp with a powered sub-woofer too.
What is your budget? Your location will also help.
Mike
I am from India. I have not fixed any budge yet. But am ready to spend up to 200usd. Is it a good one?
I actually found this circuit and also found that it is a faulty one Circuit power audio amplifier with TDA7377 2.1 – Stereo + Subwoofer 2x 12 Watts + 37 Watts | Xtronic Free Electronic Circuits and Informations
That advice is excellent!
Here are the links:
1). Index page for Decibel Dungeon, a DIY hi-fi site for hi-fi lovers.
2). Elliott Sound Products - The Audio Pages (Main Index)
The information and reading is reasonably accurate, easily applicable, rather enjoyable and highly informative.
.
At least as a starting point you can't go wrong with the factory's suggested circuit for the LM3886. It's on page 2 of the data sheet, which is here: http://www.ti.com/lit/gpn/lm3886
Don't be frightened away by the data sheet! You don't need to know all that stuff, all you care about is the wiring diagram on page 2.
You'll get 40 watts with about a +/- 30 volt power supply. The circuit is the one suggested by the engineers who developed the LM3886 in the first place.
Probably the same data sheet is available in your first language. In your language google for:
data LM3886
.
At least as a starting point you can't go wrong with the factory's suggested circuit for the LM3886. It's on page 2 of the data sheet, which is here: http://www.ti.com/lit/gpn/lm3886
Don't be frightened away by the data sheet! You don't need to know all that stuff, all you care about is the wiring diagram on page 2.
You'll get 40 watts with about a +/- 30 volt power supply. The circuit is the one suggested by the engineers who developed the LM3886 in the first place.
Probably the same data sheet is available in your first language. In your language google for:
data LM3886
.
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