[AudioJoe]

Hi Matt,

Because the kit is designed with a fixed amplifier gain (optimized for the signal output level of the stock stereo), your chances of good results with this kit are pretty slim. If your aftermarket headunit has more or less output signal strength, the subwoofer gain curve would be left to chance and may either clip too early or never provide full output power (most likely somewhere in between those polar opposites, but where is the question)...

The subwoofer amp gain curve was setup to match the output level curve of the stock stereo to sound ideal at any volume level selected on the headunit in relation to the rest of the full range speakers in the H2, from min to max. At max, if memory serves, the stock headunit makes 350mV unclipped, with it's balanced differential outputs.

Thanks
Joe