Is it okay to run two amplifiers for two speakers

You may never connect the active outputs of an amplifier together. Even a tiny voltage difference can cause large and damaging current flows.

What you can do is bi-amp a speaker which has two separate binding posts IF the binding posts themselves are not internally connected.

If your amplifier is fully balanced AND you want to bi-amp a speaker you must check that there’s no continuity between speaker grounds or hots. For most amps just making sure the hots have infinite impedance is enough.

Thanks.

You may never connect the active outputs of an amplifier together.

To clarify this statement, I mean directly together such as via a speaker cable or even an accidental strand that shorts from one to the other.  However, in cases when the amp is bridged and :

• there is a speaker in between the two (+) terminals
• The speaker between the terminals equals or exceeds the minimum bridged impedance

it's OK to do so.

To bridge each amp I should connect the positive speaker terminals only?