Originally Posted By: iloveturbo
Originally Posted By: Socketman
As an example crown does not list voltage gain , though that may be because it as gain controls and a pro would set them with proper equipment (speculation).

Richard


As for the gain calculation, I quote Avi from Crown

An amp with a voltage gain of X40 will output 40 times it's input sensitivity spec to reach full power on the output, on the XLS series the input sensitivity is 1.4V.
That means that if we put 1.4V on the amps input we get at 8 ohm for the XLS 1000 215W per channel. So we'll calculate the maximum output voltage:
V out max = SQR(P max X R) = SQR(215 X 8) = SQR(1720) = 41.473V
The amps voltage gain is the ratio between the input sensitivity and the amps maximum output voltage. So we take the two figures (Voltage sensitivity=1.4V and Maximum output voltage=41.473V) and find the ratio between them, that's:
R = V1 / V2 = 41.473 / 1.4 = 29.625

Let's redo it for 4 ohm load:
V out max = SQR(P max X R)=SQR(350 X 4) = SQR(1400) = 37.417V
R = V1 / V2 = 37.417 / 1.4 = 26.726"

http://www.crownaudio.com/forums/index.php?showtopic=4459&#entry16750

I will be testing the XLS series soon and will give you guys an honest feedback on what I think of it.

Cheers

Howard


Howard, dude, I thought you said you weren't going to bore
us! I was just beginning to trust you. This sets us back.

Always call the place you live a house. When you're old, everyone else will call it a home.