ATI now has two completely different technology amps occupying the 200-Watt sweet spot. The AT4000 class A/B and the AT522NC Class-D amplifiers, both with surprisingly similar specifications. The AT52x series is 25% cheaper and up to 50% lighter than the AT4000’s.
The AT4002 (bottom and AT522NC (top).
The AT4000 is the slightly lower powered (200 versus 300 WPC) version in their top-of-the-line Signature Series amplifiers.… Read the full article