Difference between subwoofer out and subwoofer preout purple rca connectors on onkyo tx nr646 question | AVS Forum
![Onkyo TX-NR6100 7.2-channel home theater receiver with Dolby Atmos®, Wi-Fi®, Bluetooth®, Apple AirPlay® 2, and Amazon Alexa compatibility at Crutchfield Onkyo TX-NR6100 7.2-channel home theater receiver with Dolby Atmos®, Wi-Fi®, Bluetooth®, Apple AirPlay® 2, and Amazon Alexa compatibility at Crutchfield](https://images.crutchfieldonline.com/ImageHandler/trim/750/457/products/2022/36/580/g580NR6100-o_other0.jpg)
Onkyo TX-NR6100 7.2-channel home theater receiver with Dolby Atmos®, Wi-Fi®, Bluetooth®, Apple AirPlay® 2, and Amazon Alexa compatibility at Crutchfield
![Connect Passive subwoofer (not amplified subwoofer) to an 7.1 or more home theater receiver. - YouTube Connect Passive subwoofer (not amplified subwoofer) to an 7.1 or more home theater receiver. - YouTube](https://i.ytimg.com/vi/bVJ62L0XMvM/maxresdefault.jpg)