Chris Caruso Guitars recently posted a video walking through swapping out the stock Legacy preamp for an LHZ. The reason for the change wasn’t due to tone: it was sudden battery death during the gig. Concerned that there was practically no warning, he opted to replace the Legacy.
We reached out to Chris and he agreed to send us the Legacy to do stress testing on.
We noted in our Legacy-vs-LHZ video that the Legacy has a much higher current draw (6.62mA) than the LHZ (0.39mA). Yes, you read that right: one Legacy draws the same current as 16 LHZ preamps!

During that video we never asked the question “How well does the Legacy handle a failing battery?” This is something we did on our Preamp Battery Comparison video when we took the LHZ preamp all the way down to 4 volts to understand how long it takes a failing battery to finally die.
We’ve got Chris’s Legacy preamp in the shop now, and are putting it through the same battery of tests to see how well the Legacy performs as the battery drains.
