You guys talk of Gain like a volume adjustment.
Gain is there to level match your head unit to the input of your amplifier.
JL in this instance will give you a specific Voltage adjustments to set up with their amplifiers.
As for power ratings JL HD series will give you the output they say they will. They are in fact very conservative with their ratings. So if it says 500 Watts you are getting that and more.
When they engineer their amplifiers they go through extended engineerng in US and very tight tolerances of manufacturing... Are there amps better ya I am sure... But they propably cost just as much if they were the same quality and offered apples to apples.
At the end of the day JL AUDIO like all other brands can be had for a lot less then retail, it is a fact and part of doing business in car audio today... And for a piece of mind when you buy JL AUDIO you know it is going to perform and you are not taking any chances.
BTW
I have some Older Series one Slash series used amps for a great deal if anyone is interested...
