Hi everyone, I want to make a Bass guitar amplifier with 20W, and i want to know all about it, can anyone Help me please ?

 

You need to have a power supply. Are you hoping to use a battery, or plug it in? And what is your load, a big bass speaker cone?

 

You're interested in an algorithm for calculating a 20W audio amplifier? Or you just looking amplifier circuit diagram to build it?
If you want to build an audio amplifier then I recommend you analyze the project attached. Contains all necessary information. It is a simple design, compact and Hi-Fi.

 

A 20W amplifier will not provide a lot of bass but it should be fine for a practicing in a small room.

 

I want to plug it in, All what i need is the circuit in order to build it, bass guitar works with 20Hz minimal, I Need a circuit that i can use it with volume and some effects as options.
for the first sight, It will be a transformer, many power amplifiers...
So, Any Ideas ?

 

Fender Bassman 6G6 schematic. You can leave out the , "normal" channel.

 

Audio amps are so cheap now it makes me wonder why anybody would build one. A "broadband amp can be used as a bass amp since the bass range is just a subset of the full audio range.

http://www.ebay.com/itm/DC-Converte...183?pt=LH_DefaultDomain_0&hash=item27dbe3ae77

You can add the effects externally.

 

Audio amps are so cheap now it makes me wonder why anybody would build one.

For fun!

A "broadband amp can be used as a bass amp since the bass range is just a subset of the full audio range.

http://www.ebay.com/itm/DC-Converte...183?pt=LH_DefaultDomain_0&hash=item27dbe3ae77

You can add the effects externally.

Sure, but one may want to design some frequency shaping into the amp, including adjustable EQ. By the way, your link is a DC converter.

TomJoad, have you visited DIYAudio.com? I bet you'll find lots of amp circuits and help there.

 

@TomJoad

Welcome to AAC.

Do you want a safe (simple?) lower voltage circuit design to start with, or do you have the experience, knowledge and respect to work with high voltage circuits??

 

By the way, your link is a DC converter.

.

Yep, this place does that some times: I post a link and it grabs the previous one I posted in another thread. Have no idea why.

 

You're interested in an algorithm for calculating a 20W audio amplifier? Or you just looking amplifier circuit diagram to build it?
If you want to build an audio amplifier then I recommend you analyze the project attached. Contains all necessary information. It is a simple design, compact and Hi-Fi.

Thank you , I'll check it out !