Yamaha DBR15s for small rock gigs?

Hey, guys.

I'm playing in a three piece that may end up doing some weekend work next year. I sold all my PA speakers & power and just have a Yamaha TF-Rack, which for a band this small is an adequate mixer for mains & IEMs.

This is a classic rock cover thing (think Bad Company, Black Crowes, etc.), so we're just going to be playing small to medium venues, I'd say from restaurants to modest rock bars. The band is a Kemper, a DI bass, a miked drum kit and two 58s for vocals, and IEMs for monitors.

I haven't gigged in years and the new equipment these days is pretty good, so I'm wondering if small PA speakers like this are close enough for rock and roll or if I have to lug more speakers than that.

For those of you who are working small / medium venues, do you think a pair of DBR15s or their Mackie Thumper equivalents would handle a three piece rock band?

Thanks, man. I've been a studio rat for so long I've lost perspective on what the new gear can do live these days.

Except the Kemper, of course.