power amplifiers have a phase invert button

[anakin]

Hello everyone！
I've been lurking for a little while now, and this is my first post. This site is awesome.
have a question regarding power amplifier function. Some power amplifiers have a phase invert button on them.What is the purpose? What is the use?
I'd love to get peoples' thoughts on this. Thanks!

 

[sam_adams]

Technically, it's a signal inversion that happens. The polarity of the signal changes when the button is pushed. Plus becomes minus and vice-versa.

 

[Chrispy]

Hello everyone！
I've been lurking for a little while now, and this is my first post. This site is awesome.
have a question regarding power amplifier function. Some power amplifiers have a phase invert button on them.What is the purpose? What is the use?
I'd love to get peoples' thoughts on this. Thanks!

Your pic is not a of a power amplifier. That's an integrated amp it seems. You could also do it manually by reversing the two wires....

 

[pogo]

For example, Accuphase assigns the XLR connectors differently than the rest of the world, which leads to signal inversion with third-party products.