In 2017, purchased several ButtKicker LFE for my Home Theater. But not available was a Power Amplifier for these LFE, which was in design by ButtKicker. I refused to purchase a third party Power AMP to drive my ButtKicker LFE. Each year, several times a year, I would check-in with Buttkicker on the progress of introducing the NEW Power AMP. Well, 5 years I waited and purchased the BKA1000-P. Received the AMP and had initial issue at start up. Contacted ButtKicker and they IMMEDIATELY sent a replacement, even before I could box up the bad actor. Had it in a few days. Plugged in and the LFE went hopping! Extremely, I mean absolutely pleased with both the ButtKicker products I have purchased as well as the company, ButtKicker entire Team. ButtKicker technology took my Home Theater cinema experience for my family and friends now in a totally immerse environment where we now "feel" the action on the screen with these ButtKicker LFE and driven by ButtKicker Power Amp generating motion in the theater seats. For me, it was worth the 5 year wait for ButtKicker to design and fabricate their own Power AMP made just for LFE technology. Highly recommend the investment with a company that is quick to support you and stand behind their brand!