I adjusted the gain on my RE Audio DTS 1000.1 with a multimeter. Square root of 330 watts @ 4 ohm load= 36.33 VAC. Used a 60 Hz tone with no bass boost, low pass filter set to highest, sub sonic set to lowest, head unit at 75% volume and a flat curve for the EQ.
After adjusting, the gain is only about 1/3 and my Image Dynamics ID8v2 is not very loud.
Thoughts? Should I increase the gain and tune by ear?