24.125.205.20
This Post Has Been Edited by the Author
In Reply to: RE: Gains posted by sbrians on February 10, 2012 at 23:26:15
Basically, correct. Most units have gain controls to compensate when the amps have different gains. If you don't compensate then the balance of the amps will vary as you alter the input signal strength from the preamp.
Gain is not the same as sensitivity but the two are related and has nothing to do with the wpc. A lot of manufacturers report sensivity but may not specify gain. G = 20*log(Vo/Vi). Vo can be calculated from the power rating (maxium output before clipping) using P=IE and Ohm's law E=IR (or I=E/R) as SQRT(P*R) and Vi is the sensitivity, invariably reported at 8 ohms.
Since manufacturers often "cheat" when they report maximum power, the gain's may still need some adjustment even if you have calculated the amps to have the same gain.
On the violin: "Heaven reward the man who first hit on the idea of sawing the innards of a cat with the tail of horse."
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