I'm selling the best amp I have, and IMO the best amp of this power class yet made, because our immersive system now uses Crown DCI network amps for all channels (these incorporate crossover filters for the LCR speakers, and limiters for side/rear surrounds) and this is far too much amp for any other system in the house. Amp was purchased direct from ATI and was packed up in the original packaging in mid-August of last year. It has a recently upgraded 12V trigger unit from ATI (defaults back to on after a power outage when there's a trigger signal, rather than standby - thanks @RichB for letting me know about this!). The transferrable warranty runs through August 2023. Will ship in original wood-reinforced box. The AT4000-series is the same design as the AT6000-series, but with fewer output transistors and thus less power, but still rated 200W/8Ω and 300W/4Ω. It's also shorter and weighs relatively less than an AT6000-series. Reviews: https://www.audioholics.com/amplifier-reviews/ati-at4002 (2-channel variant) https://www.audioholics.com/amplifier-reviews/ati-at6000 (big brother) https://hometheaterhifi.com/reviews/amplifier/power-amplifier/ati-at6002-multi-channel-power-amplifier-review/ (circuit analysis by Dr. David Rich) https://hometheaterhifi.com/technical/technical-reviews/the-fully-balanced-power-amplifier-advantages-and-design-challenges/ (further analysis by Dr. Rich) Local pickup in Chicago. Hey - drive here for AXPONA, "accidentally" come home with a SOTA amplifier! I've recently had some depressing shipping experiences - can you say Revel Gem2 floor stands with the bases sheared from both posts in the original packaging? - that make me leery of shipping this amp. Also it'll be crazy expensive to ship it.
