Thanks to its sophisticated warming platform the 741 AO has two switches (instead of a solitary button), one for power and another to toggle the hotplate between "Hi" and "Low" settings. You get a glass carafe instead of a steel thermal one. The second heater actively works to keep your brew good and piping once it's made, but not so hot as to turn it to sludge.
To this end the Moccamaster 741 AO flaunts two, a main copper heating element which jacks up the water temp to 200 degrees ASAP. This approach a Moccamaster rep explained is misguided since water heaters are way overpowered for this auxiliary job and tend to scorch coffee pots in no time. Technivorm stressed to me though that average coffee machines rely on a single heating element to heat both water and warm their hotplates. Secondly, instead of a flat plastic footplate this AO Moccamaster boasts a genuine hotplate which is a feature quickly becoming a rarity among premium drip machines at least in the US. First is that the 741 AO comes with a glass carafe (though with the same 10 cup capacity) as opposed to the KBT 741's thermal coffee pot which is crafted from sturdy stainless steel. There are other notable differences between the two models. And while it offers less control, the AO's basket features a spring-loaded lever which closes when you remove the coffee maker's carafe. That means you don't have to remember to adjust the basket's drip aperture manually (open, ½ open, closed) as you do with the KBT 741. Unlike the KBT 741, however, the KBG 741 AO's brew basket is equipped with an automatic drip stop mechanism. An auto drip stop basket won't leak when the carafe is gone.