i want to add three more speakers to my 2.1 sound system to make it 5.1. Shoud I use amplifier?

 

i want to add three more speakers to my 2.1 sound system to make it 5.1. Shoud I use amplifier?

Besides amplifiers for each speaker, you also need a decoder to generate the 5.1 signals.
Where are the 2.1 signals coming from?

 

Plz explain the decoder circuit

 

Plz explain the decoder circuit

Isn't that the job of "GOOGLE" ?

Allen

 

L R

F R

4 speakers can still be 2 or 2.1 Typical for a car, but not exactly encoded and it's likely L R + a subwoofer.

To upconvert from real 2.1 to 5.1 seems to be a bit harder.

I, myself, would like to upconvert analog L R to AC3-Audio only via HDMI. Google wasn't too helpfull. Kodi came up as a possible platform.

 

What is the source of the sound?

What is the 2.1 setup you have now?
Sound from pc?
Sound from audio device like receiver/player?

 

5.1 sound is encoded into some digital sound sources, such as Blu Ray movies and some audio CDs.
T0 get that sound you must have a digital decoder that recovers the sound into the separate 5 analog channels plus subwoofer.

If all you have is 2.1 analog signals, they can't be converted to 5.1.

 

If all you have is 2.1 analog signals, they can't be converted to 5.1.

I won't QUITE go that far. See: http://www.tcelectronic.com/upcon/

 

I won't QUITE go that far. See: http://www.tcelectronic.com/upcon/

That discontinued product derives an emulated 5.1 from 2.1 which is not the same as true 5.1.
But it may be better than just 2.1.

 

That discontinued product derives an emulated 5.1 from 2.1 which is not the same as true 5.1.
But it may be better than just 2.1.

"Better" is so subjective. I'll take real stereo over phasey, comb-filtered, emulated 5.1 any day! I'm sure they're not all as bad as ones I've heard, but I'm still skeptical!

 

What is the source of the sound?

What is the 2.1 setup you have now?
Sound from pc?
Sound from audio device like receiver/player?

Sound from PC or Android smartphone