Originally Posted by Za Warudo
Originally Posted by PurpleAngel
From my understanding a balanced output is two positive channels (twice the power of a unbalanced connection) and one ground line.
So if you take an imbalanced output and send it to a balanced input, the each of the two balanced inputs will only receive half of the expected power.
Per the LSR305 manual, +4 is when using a balanced input, and -10 for unbalanced, but why is beyond my pay grade.
The JBL website says that the TRS inputs are also balanced. Wouldn't that make it the same as the XLR inputs? So if they receive half of the expected power then the speaker wouldn't be able to get enough volume?
In the LSR305/308 manual, I think on page 7, it says to use the -10 setting, when using an unbalanced (TRS) connection.
I'm guessing JBL expects the LSR305s to normally be used with a balanced connection (XLR or TRS) , but offers an option (-10) for those few times they might be used with an unbalanced connection.
From my understanding one of the reasons for using a balanced connection is it allows you to use a really long cable and still get the studio monitor to function properly.
Where if your using a unbalanced connection, but with a shorter cable, the JBL can still function well enough.
But i'm just making my best guess on this stuff.
You might get better answers asking on this forum section.