Hi guys, Could I have burnt out the input stage of my Line 6 LD150 by continually plugging by Bass with Active Circuitry into the Passive Input Socket instead of using the Active Input Socket? The amp repair guy said it looks like someone has put a powered signal into it like from the speaker-out socket on another amp but I know this isn't the case. I know a lot of people do use the Passive Socket as it is a bit warmer as Active input sockets seem to suck the tone out of a bass, and even the dealer I bought the amp from suggested using the Passive socket as a preference. Is an Active Bass capable of doing such damage? I saw the circuit board and it had burnt out about 3 transistors and the board itself was scorched. I'm using the Active socket now, but i do miss the sound I used to get through the Passive socket, but I don't fancy paying another £100 to get it repaired again! Can anyone throw any light on this?