Line Out - kills sound

[bammbamm]

Hi - I'm using the original without the gain or the green LED light. I've never had any problems until recently. I'm playing acoustic (stand up) bass and plugging into a small amp. When I need more power, I was able to use the effects loop into the PA, or the XLR. This now seems to kill the sound coming out of the amp (which I would be using as a stage monitor). Any suggestions how to remedy?
Thanks.

[Bryan McManus]

Hi Bammbamm,

What product are you using? You only mention it's the original.