Originally Posted by LaZyLuke

So I am not an expert at this but then that will mean I can bridge it using one channel Positive terminal and the other negative:

(+)::::;(-)---(+)::::;(-) [assuming that what BTL looks like] then:
[rear right] [rear left]


(+)::::;(-)--(+):::::;(-)
|::::::::::::::::::::::::|
|::::::::::::::::::::::::|
--------8ohm----------

that should double the volt output... and 8 ohm should not cause underload issues and the output will become mono (I know that's how it works on certain amplifiers)....Am i wrong?


P.s:

:::::::- this denotes empty space, apparently you cannot put multiple spaces on this forum as it would be recognized as one space... I hope the diagram makes sense

Originally Posted by kevmurray

BTL means Bridge Tied Load. There are actually two bridged amps per channel inside the head unit and so you can't bridge them again. If you did you would only get the voltage difference between them. This is how we get "high power decks".

Originally Posted by RomanticMoments

Are you decoding a 5.1 or better signal? If you're listening to a CD or any other stereo source, there are only two channels to work with... Hence what kevmurray was saying... The rear channels are already bridged to duplicate the signal exactly. Plus it maximizes the power/size available. And to make matters worse, the signals aren't summed left-to-right, so it's not actually a mono signal and can cause problems when the left - signal doesn't exactly mirror the +. Like mentioned before, it's just a bad idea