i used to compete in the ’90s and upon building my 240sx with MMATS AMPS and Juggernauts 15in woofers i was looking for a line driver to boost my output from my head unit. what i found was RW linedriver with burp botton. it was one of your early creations for db drag competitors. competeing with it in Guam won me my class at every event. uptil now i still have the line driver even though i dont compete anymore. i would use your product again if i was competeing n db drags once more.. good luck..