Hey guys,
I bought one of those mono amplifier boards for subwoofers etc. Since it only has 1 input channel ( and ground ) and no Bandpass filter ( which i need, because i wanna use it as a subwoofer amplifier ) I tried developing a Circuit which combines those 2 circuits. I did that by using
http://falstad.com/mathphysics.html
the analog Filter and the analog Circuit simulator applet. Both circuits worked ( IN THEORY ) just as i wanted them to.
( The 2 signal sources are the Left and Right channel from my Aux cable/3.5mm Phone Jack )
Im quite sure the summing amplifier should work just fine as i planned it ( correct me if not ).
But finally after recieving the PCB and the Components and testing it all, it didnt work. After trying to only use the Mono sum part, i heared noise and very light music ( my input signal ) when connecting a test speaker ( I dont have measurement equipment accurate enough for this )...
Is the reason just bad contacts or why doesnt it work?
Thank you in advance
I bought one of those mono amplifier boards for subwoofers etc. Since it only has 1 input channel ( and ground ) and no Bandpass filter ( which i need, because i wanna use it as a subwoofer amplifier ) I tried developing a Circuit which combines those 2 circuits. I did that by using
http://falstad.com/mathphysics.html
the analog Filter and the analog Circuit simulator applet. Both circuits worked ( IN THEORY ) just as i wanted them to.
( The 2 signal sources are the Left and Right channel from my Aux cable/3.5mm Phone Jack )
Im quite sure the summing amplifier should work just fine as i planned it ( correct me if not ).
But finally after recieving the PCB and the Components and testing it all, it didnt work. After trying to only use the Mono sum part, i heared noise and very light music ( my input signal ) when connecting a test speaker ( I dont have measurement equipment accurate enough for this )...
Is the reason just bad contacts or why doesnt it work?
Thank you in advance