Amplifier for 6ohm speaker

[no183]

i have 2 old 6ohm speaker from a condamn hi fi set, now, how do i create a amplifier circuit for that speaker? if possible i want a USB powered amplifier circuit ..any idea guys ?new here, thanks

 

[no183]

search around and get http://www.techlib.com/electronics/audioamps.html#computer
can this amplifier give an equal quality like VS4121 altec lansing spaker?

 

[h_a]

Such a project (amp powered from USB) may be possible if the speakers are very high efficiency (USB cannot deliver much power). For sure not a beginner's project, sorry.

If USB is not strictly necessary, you have many choices

Have fun, Hannes

 

[no183]

ok, ur idea?? i can consider of that

 

[no183]

anyone ? please

 

[Nelson Pass]

Perhaps you are in the wrong forum for usb expertise.

 

[juma]

anyone ? please

Sorry, but it's a bit absurd - USB gives you 5V and 500 mA - that's hardly enough for decent headamp...

 

[no183]

just give me a non USB idea also nevermind

 

[juma]

just give me a non USB idea also nevermind

If you want a good answer to your question you have to be more specific:
- what will it be used for?
- what power do you need?
- what is you budget for this project?
- what kind of amp you want, class A, AB, gainclone, tube, solid state...?
The more details you give, the better answer you'll get

Judging from your speaker's description I think gainclones will fit the bill and that's in another section of this forum...

 

[no183]

i know nothing about amp, can you give me any guide how to determine what i want?
well, just to power a normal desktop speaker, 2 small desktop speaker.

 

[Ipanema]

Use multiple USB port in parallel, say 20 ports give you 10A of current at 5V, then boost up to whatever voltage you desire.......but what is the purpose?

 

[no183]

zzz, i already tell, not power by USB also nvm

 

[Frank Berry]

If you don't need much power, you might build an amplifier using a couple of LM386 IC's. One IC for each channel.