NooB Looking to Upgrade Bose Accusimass 10

[Dusty Chalk]

Definitely go for the JBL's, they are good speakers.

If I do use the JBL CF150 speakers for my front left/right, they have 15" subwoofers so how do I drive those and then not blow my surround/centers since I will have to turn off the low-pass that is currently driven by the subwoofer? Will my Kenwood send bass to all the speakers? I'm not clear on how this set up would work?

You bypass the sub by setting the speaker size to "large" on your front left and right, if your Kenwood does that sort of thing.

Use the (2) JBLs for left/right front. Invest in a really nice center speaker since I'll get the JBL's for free. Use my existing Bose speakers for the left/right surround and when I upgrade to a better and more powerful 7.1 receiver (vs. my current 5.1), use the front left/right Bose speakers for the center rear left/right fills.

Sounds like a plan!

You might have minor problems (like IIRC the JBL's will be more sensitive than anything else), but it'll get you started in the right direction, definitely.

Also, if your Kenwood allows this, you may even want to do a "phantom center" (just tell your Kenwood that you have no center, and it automatically redirects the center channel audio to the front left and right). Not everyone is a big fan of phantom centers, but (a) I am, and (b) it'll eliminate any sensitivity mismatch problems.