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Connect 2-4ohm cabs into my R1000 basshead

I guess I'm just dumb. I've read what I could find but still feel confused as to the best way to connect my speakers to my bass head.
my Carvin R1000 Redline
So I thought I need to send a 4ohm worth of power to my 4ohm speakers? The bridge area on my R1000 has me questioning ... I plug each speaker cab into the 1/4" jack labeled bridge but i DON'T press the bridge button??? guessing its in "full-range" mode?
How do I connect this set up best?
Carvin R1000 Redline
Carvin two-BR115 600w Speaker Cabinet
Do I use the single 2ohm channels for each cab separately?
Or the 4ohm setting bridged... daisy chain the speakers or not? I'm running around in circles here. I'd appreciate any help you can share.
Thanks!!
 

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You should download the amp instruction manual from Carvin. According to the manual, you cannot run two 4 ohm cabinets daisy chained together or your amp will shut off and go into the protect mode. You can only run two 8 ohm cabinets connected that way for a total impedance of 4 ohms.
 
I gigged the R600 regularly for quite a while. The bi-amping is great if you've got the cab compliment to make the most of it. Regular bass cabs are not that compliment. Talking subs + tops, PA style there, or something like a 215/218 bass cab on lows + 210 and tweeter on highs or something. With regular bass cabs, you'll get the most out of the rig running them all full range.
 
both cabs are BR115's I plugged one into the 4ohm 1/4" input and it sounds pretty good. Loud enough to be heard with my acoustic drums finally. I'll be picking up the other cab on friday. Planned on plugging it into the second 4ohm 1'4" jack.

Before getting the BR115 I was using a 300w Harke 1x15" cab. I see now it was 8ohm and we had it plugged into 2ohm bi-amp. It sounded weak. I see now I should have used the 4ohm amp choice
 
Yeah. There are two amplifiers inside. They are bridgeable but not with your cabs. Very few cabs would suit that application of the amp.

The signal which goes to those amps can be split into highs and lows by engaging biamp mode. Otherwise they get the same full range signal. This gets the most volume possible from your cabs.