Someone please explain the difference...

[Enderman]

Hi, can someone please explain there difference between these three values and why each one is different?

I dont understand why the wattage varies so much when all tests are done on the same 8-ohm speaker...

what is the difference?

 

This is where the rest of the specs are in case you need any more info: http://www.bhphotovideo.com/c/product/846128-REG/Sony_STRDH130_STR_DH130_2_Channel_Stereo_Receiver.html

[Lutkeveld]

Distortions varies with frequency and output power.

It remains fairly stable until a certain output power after which it kinda sky-rockets.

That's why when you turn an amp all the way up it will often distort.

If you measure it at, for example 10% THD+N, you measure it way after the distortion started increasing which gives you a higher value.

[Enderman]

Distortions varies with frequency and output power.

It remains fairly stable until a certain output power after which it kinda sky-rockets.

That's why when you turn an amp all the way up it will often distort.

If you measure it at, for example 10% THD+N, you measure it way after the distortion started increasing which gives you a higher value.

Ok, so basically it can do up to 135W but it would have more distortion than at 90W?

[Lutkeveld]

Yes, if we can believe the specs.

But I like to point out that you almost can't hear the difference between 90 and 135 watts.

What you CAN hear is the significantly increased distortion.

[BoredErica]

Distortions varies with frequency and output power.

It remains fairly stable until a certain output power after which it kinda sky-rockets.

That's why when you turn an amp all the way up it will often distort.

If you measure it at, for example 10% THD+N, you measure it way after the distortion started increasing which gives you a higher value.

Err... isn't that just clipping?

[Lutkeveld]

Err... isn't that just clipping?

 

It's related, but not the same.