phasing

Ok, so I've got an Aguilar AG700 running an SL210 and SL115. Each cab sounds great on its own and when piggy backed together, but not when I run them simultaneously with the amp's two Speakon outputs. The rig all of a sudden has no low end and you can almost hear a stereo delay type effect...

Hi all I have a bass with graphtech piezo and a magnetic pickup. There's a volume dip when the pickups are blended. And I hear phase issues. The bass has an audere preamp, which was selected because of its active blend/buffer, which is Effective and convenient. However, it doesn't magically...