I don't give a crap. I have been watching him, he said in another thread, that he gained 1.5dB going from SAZ-3000D's to DDZ1's... I could see maybe 1dB if he mean DDZ1a because it's a larger amp, but not the old DDZ1, it's the same crap, older design. I have worked on both, SAZ-3000D, and DD Z1, and they are so similar there is NO WAY you could get a 1.5dB gain by switching, just not possible. I think he is just hating. Been a lot of people coming into this forum lately hating on Sundown. When stuff gets so popular, people start to get hateful towards it, just the way it works. If the SAZ-3000D was a POS I would tell you it was a POS I don't care about ties to Sundown. Only bad things about the SAZ-3000D, to me, being an amp tech, is that it is that **** self-oscillating design that is used in so many modern Class D amps, and it can be touchy with voltage changes, temperature changes etc... But the DDZ1 is ALSO the same self-oscillating design. I just don't like it. I prefer the design that is in the SAZ-1500D, which I will say, and I am sure Jacob has told many people as well, 2 x SAZ-1500D > 1 x SAZ-3000D. Problem is some people only have room to mount 1 amp. I just honestly think the guy is full of crap, especially the part about gaining 1.5dB by switching to the DD Z1 since despite it looking different to "technical Newbies" when it comes to the guts of amp, I can assure you it's very similar. No way a 1.5dB gain, I am calling BS on it.