I found this passive circuit online
http://web.archive.org/web/20070602004531/http://www.tkk.fi/Misc/Electronics/circuits/linesum.html
I need to connect the my left and right pre-out to my sub, the sub only has a single RCA inputs. If I use the circuit above, will it not affect the pre-out that goes to my main power amplifier powering the left and right speakers?
http://web.archive.org/web/20070602004531/http://www.tkk.fi/Misc/Electronics/circuits/linesum.html
I need to connect the my left and right pre-out to my sub, the sub only has a single RCA inputs. If I use the circuit above, will it not affect the pre-out that goes to my main power amplifier powering the left and right speakers?
The use of those 10K resistors joined for a mono output is fine.
Built into a small metal shielded box to prevent hum and interference is a good way to go.
Built into a small metal shielded box to prevent hum and interference is a good way to go.