This is the only amplifier I had lying around and since it was a mono amplifier, it only accepts 2 inputs. By using two boards at the same time feeding the same signal wherein the LEFT channel and GND goes to the 1st board and the RIGHT channel and same GND to the second board will it work smoothly as a stereo amplifier creating a 120w Amplifier? ~(Also, I'm using only 1 power supply to power the two boards.)

 

By using two boards at the same time feeding the same signal wherein the LEFT channel and GND goes to the 1st board and the RIGHT channel and same GND to the second board will it work smoothly as a stereo amplifier creating a 120w Amplifier?

No.
According to the data sheet, the TPA3116 (which is on the board you posted) is a stereo amplifier, not mono.
But the two stereo amps can be connected in bridge fashion to give 60W into a 8Ω load.
Is that how yours is connected?
If so, it can't be further bridged by using two amps.

 

No.
According to the data sheet, the TPA3116 (which is on the board you posted) is a stereo amplifier, not mono.
But the two stereo amps can be connected in bridge fashion to give 60W into a 8Ω load.
Is that how yours is connected?
If so, it can't be further bridged by using two amps.

~Well technically I don't really understand how the IC was connected in the board but either way it says "60w Mono Amplifier" and thus, can there be any ways to make it a stereo amplifier out of this 2 boards?

 

To repeat, no.
The circuit is apparently already bridged on the board.

 

As long as you keep the outputs separated, one board to one speaker, the other board to the other speaker, then yes you can use two boards to form a stereo amplifier. I think crutschow believes you want to cross connect the two boards.

 

I think crutschow believes you want to cross connect the two boards.

Well in his first post he said he want to create a 120W stereo amp but I guess he meant 60W per channel.
In that case yes that will work because they are working as two completely separate amplifiers.

 

So basically I'll only feed LEFT CHANNEL to the first board and RIGHT channel to the second board in the input. Will it be okay if they have the same ground in the input?

 

Will it be okay if they have the same ground in the input?

Perfectly okay.

 

~So basically this connection will be okay and there'll be no magic smoke or something right? OR should I isolate the powersupply of the two?

 

~So basically this connection will be okay and there'll be no magic smoke or something right? OR should I isolate the powersupply of the two?

You should be fine with that connection.
And I see no particular reason to isolate the supplies.

 

~Well that solves my problem, thanks for helping out!