Does this rumbling noise sound like the idler pulleys?

[10/10ths]

….is very bad news.

I have seen three different Boxsters go up in flames after an idler pulley failure.

Belt friction set that thing on fire.

[BoxsterInTheSun]

Originally Posted by 10/10ths

….is very bad news.

I have seen three different Boxsters go up in flames after an idler pulley failure.

Belt friction set that thing on fire.

I got access to it today while I'm waiting for time to take the belt off. I can hear the noise much better with the access panel off.

Can someone take a look at this latest video that shows the rumble a lot better and let me know if I'm on the right track with the pulleys, or is this loud enough that it could be something else?

Regardless I'll be taking the belt off to check the pulley bearings as @JFP in PA mentioned, but wanted to check in case this is something else that I would need parts for so I can get them ordered.