How to connect old active sub to AVR


Active Member
Hi guys, I have an old sub i bought of a freind (cant see a manufacturer name anywhere) it has old style red and white inputs and outputs, my Sony str de497 AVR has an sub line-out output, now is it possible to use a 3.5mm phono which splits into 2 3.5mm phonos (not sure what cable is called) to connect the AVR to the sub. If this is poss, would the sound quality be as good as single phono to phono (how it should be).
Thanks for any advice! :D


Distinguished Member
Most, if not all subs have two inputs. You only need to use one. Use a standard subwoofer cable and connect it to the Left input. Voila'. Job done.



Active Member
Thanks!!! :thumbsup: was worried I may do a little damage to it if I wired it incorrectly!
Is this a rule of thumb regarding subs if there is not a single phono input?
Thanks again!


Distinguished Member
Yeah pretty much, shouldn't matter which one you use though.

The stereo (i.e 2 RCA) are for if use with a stereo amp. You'd normally use the tape loop out to feed the sub a line level signal.

The latest video from AVForums

Panasonic LZ2000, LZ1500 & LZ980 Hands-on Launch Event | No QD-OLED for 2022, new 77-inch for LZ2000
Subscribe to our YouTube channel
Support AVForums with Patreon

Top Bottom