Hello:

We are new to amp and cabs and need some help with some test results we're getting from our AVT150HX amp connected to our 1960A cabinet.

We included images from the back of the AVT150HX amp and the page in the manual of the 1960A cabinet that outlines the use of the connections panel on the back of the cab.

Here is a summary of what is happening.

1. When we run a speaker cable from either of the two output jacks from the amp to the #3 connector on the back of the cab, we get no sound. This happens whether the cab is in mono or stereo.

2. When we run a speaker cable from either of the two output jacks from the amp to the #2 connector on the back of the cab in stereo mode, we hear the right-side speakers clearly. We also think we somewhat hear the left-side speakers, but that may be bleed we're hearing from the right-side speakers. Not sure. It's a bit hard to tell because the sound is very muffled and not as loud, but it does seem like some sound is coming from the speakers.

3. When we run two speaker cables from both of the output jacks from the amp to connectors #2 and #3 on the back of the cab in stereo mode, we get the same results as #2 above.

Does this mean that the left-side speakers are disconnected or damaged somehow? Or are we making a mistake in the way we are making the connections?

Thanks in advance for the help.

-Eli