Specs for JBL upgrade package ?

[G MAN]

Looking for spec info on JBL amp output and speaker resistance....such as sensitivity and ohm resistance value.
What does the JBL upgrade actually up grade ? Are the dash corner and all 4 door speakers better than the non-JBL speakers ?
Know it upgrades with removable center dash speaker, front piller speakers, sub woofer and amp-----is that correct ?
Looking to upgrade door speakers to improve over all sound----but not sure if it is worth it..
Have beat Sonic amp-----can it drive all 4 door speakers better, or not ?
Thanks

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[inlandsmog]

https://www.toyota.com/connected-services/
https://www.jbl.com/toyota.html

 

[inlandsmog]

 

[inlandsmog]

Hope this helps.

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