Ok, I know that this might seem a silly question, but I couldn't find the solution anywhere on the forum, so I'll just go ahead.
I just got my Helix LT, and I tried to use it LT to simultaneously play my guitar and a backing track on the same speaker. While my guitar is normally connected to the 1/4", the backing track is played by my laptop through the USB port, but its volume is way too high. Even if I turn the laptop volume to the minimum, I can barely hear my guitar.
I've tried to create a new signal path with a volume control, but I can't choose USB 1/2 as an input... and I sincerely didn't get the multiple USB thing, since I see only one port.
Can someone answer? Thank you.