Quote Originally Posted by lewisb13 View Post
Rock on. Thank you so much. This should also help all of us that have the 6 channel amps with analog gain controls for the cabin speakers. Its impossible to match 6 speakers with a little screwdriver and your ears.
One more thing - when calculating the target voltage, be sure to use the rms rating under the conditions you will set the gain. For example, if you look at the specs of the M6600, RMS output is given as 55W at 12.5V (engine not running) and 75W at 14.4V (engine running).