Circuit to split an audio signal into two and o/ps should've same level as i/p

Status
Not open for further replies.
S

satyaRANJAN

Newbie level 2
Joined
Sep 24, 2010
Messages
2
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Visit site
Activity points
1,296
I have two 2.1 speaker systems and a laptop with one audio o/p jack. I want to connect them so that both the speaker systems play the sound simultaneously.
So I need a circuit that can take i/p from my laptop audio o/p jack and give two o/ps which will have equal strength as the i/p.
Or is there any better idea for this job to be done?

I don't want to use only a Y-splitter as it weakens the signal at its both o/p ends.

Thank you.
 

Depending on what your input and output impedances are, you COULD get away with a Y-splitter. Otherwise, you'll need an active splitter. Something like this might work.

**broken link removed**
 
Thanks for the post Barry.
But can I use a simple common base bjt ckt as a buffer to prevent any loading to the laptop
and then I split the o/p of the CB ckt?
l think the laptop o/p has got an impedance of around 32 ohms. And the I/p impedance of the
subwoofer system should be quite larger than this.
I have a very little knowledge in analog.
 

If the input impedance to your subwoofer system is substantially larger than 32 ohms, you won't need a buffer; you are not drawing very much power from your laptop output.
 
Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…