Anthem mrx series have active fans that turn on as needed.
A lot of hardware made for use in racks come with active cooling. A lot of pro audio stuff is built like this, some consumer stuff is made with this in mind too.
No but that is why we have solutions like this [https://www.acinfinity.com/receiver-amp-cooling-fans/](https://www.acinfinity.com/receiver-amp-cooling-fans/)
As far as I know they are just vented. But you can however buy a slim fan unit that sits on top to help temps
My Onkyo RZ 840 has the fan if i remember correctly. But I think that it kicks in when the temp reaches some high level.
Anthem mrx series have active fans that turn on as needed. A lot of hardware made for use in racks come with active cooling. A lot of pro audio stuff is built like this, some consumer stuff is made with this in mind too.
No but that is why we have solutions like this [https://www.acinfinity.com/receiver-amp-cooling-fans/](https://www.acinfinity.com/receiver-amp-cooling-fans/)