What is the phase switch on an amp?

[CJL 10+ year member]

What is the phase switch on an amp and how would you set it?

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[skadude016 5,000+ posts]

I think.... im not sure but i think, the phase is for if the woofers are playing out of sync with the beat of the music. and you turn it on to reverse that effect.

 

[rocky 59 5,000+ posts]

thats f-phase ska i dunno if its the same thing

 

[Bake 10+ year member]

I don't know what amp you have but SKA is correct. It is used to switch the output by 180 degrees for tuning purposes.

 

[skadude016 5,000+ posts]

yay I win //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[CJL 10+ year member]

So you would leave it at 0 degrees unless the subs are out of phase?

 

[skadude016 5,000+ posts]

si

 

[helotaxi 5,000+ posts]

Try it in both settings and see which sounds better. It's a subtle difference that you can't place, but you'll know when it's right. Has the same effect as swapping the pos and neg wires on the subs at the amp.

 

[Hundreth 10+ year member]

Try it in both settings and see which sounds better. It's a subtle difference that you can't place, but you'll know when it's right. Has the same effect as swapping the pos and neg wires on the subs at the amp.

Some phase dials can be turned like half way which would be like 90.. what effect does that have?

 

[jujumantb 10+ year member]

Some phase dials can be turned like half way which would be like 90.. what effect does that have?

changes it to 90degrees 'out of phase' instead of 180 //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[jujumantb 10+ year member]

I drew up a pichur...

pretend the blue wave is 'normal', then the red wave is when you adjust the knob to 180 and 90 respectively..

 

[helotaxi 5,000+ posts]

Anything other than 0 and 180 must have frequency associated with it to mean anything. Basically is serves as an analog time delay at that point.

 

[jujumantb 10+ year member]

Anything other than 0 and 180 must have frequency associated with it to mean anything. Basically is serves as an analog time delay at that point.

How so? I'm sure you're right I just dont understand. A soundwave is a wave nomatter wahat frequency correct? It's frequency (spacing between segments) is the only thing that changes right? So why would a 90deg. phase shift at 2khz be different than a 90deg. phase shift at 30hz? If you were to see the 2khz 90dge phase shift graphically, couldnt you "zoom in" on it and it would look identical to the 30hz 90deg. phase shift?