Rca Converter problem

[Dicko]

Hi guys

im new to the forum and new to audio in my fiesta, ive had many ice installs and subwoofers in cars. ive recently put a 8" sub in a custom fibreglass box my question is

has anybody has problems with rca converters in there cars.

im using a standard headunit and have spliced into the rear speaker cables and connected the rca converter to them but the sound quality is shocking crap. i cant turn the sub levlels up without the sub distorting

any ideas

Thanks

[JackClargo]

Hi mine is fine , iv ran speaker cable straight off the back speakers into the boot then connected them to a rca converter, then straight to the amp.

Have a play with the gains on the sub.

If it still plays up try a different converter